fix: Cherrypick main fixes to staging (#7166)

* fix: token margin in searchbar (#7155)

fix: token margin is searchbar

* feat: Add base support to Explore & Search (#7165)

* filter search results

* feat: add full base TDP support

* add base to uni wallet supported chains

* fix: test id based on address & chain instead of ticker (#7167)

* fix: test id based on address instead of ticker

* add chain to test id

* use token address

* lowercase

---------

Co-authored-by: Jack Short <john.short.tj@gmail.com>

.env

@@ -4,6 +4,8 @@ REACT_APP_AMPLITUDE_PROXY_URL="https://api.uniswap.org/v1/amplitude-proxy"
 REACT_APP_AWS_API_REGION="us-east-2"
 REACT_APP_AWS_API_ENDPOINT="https://beta.api.uniswap.org/v1/graphql"
 REACT_APP_BNB_RPC_URL="https://rough-sleek-hill.bsc.quiknode.pro/413cc98cbc776cda8fdf1d0f47003583ff73d9bf"
+REACT_APP_BASE_GOERLI_RPC_URL="https://wiser-compatible-mansion.base-goerli.quiknode.pro/5874f36248e17020a1006149e7f68c63967e1f45/"
+REACT_APP_BASE_MAINNET_RPC_URL="https://cool-white-diagram.base-mainnet.quiknode.pro/d8f036f35dfab2c68f32dfa822cd971e7a25a117/"
 REACT_APP_INFURA_KEY="4bf032f2d38a4ed6bb975b80d6340847"
 REACT_APP_MOONPAY_API="https://api.moonpay.com"
 REACT_APP_MOONPAY_LINK="https://us-central1-uniswap-mobile.cloudfunctions.net/signMoonpayLinkV2?platform=web&env=staging"
@@ -11,3 +13,5 @@ REACT_APP_MOONPAY_PUBLISHABLE_KEY="pk_test_DycfESRid31UaSxhI5yWKe1r5E5kKSz"
 REACT_APP_SENTRY_DSN="https://a3c62e400b8748b5a8d007150e2f38b7@o1037921.ingest.sentry.io/4504255148851200"
 REACT_APP_STATSIG_PROXY_URL="https://api.uniswap.org/v1/statsig-proxy"
 REACT_APP_TEMP_API_URL="https://temp.api.uniswap.org/v1"
+REACT_APP_UNISWAP_API_URL="https://api.uniswap.org/v2"
+REACT_APP_WALLET_CONNECT_PROJECT_ID="c6c9bacd35afa3eb9e6cccf6d8464395"

.eslintrc.js

@@ -1,5 +1,6 @@
 /* eslint-env node */
 
+const { node: restrictedImports } = require('@uniswap/eslint-config/restrictedImports')
 require('@uniswap/eslint-config/load')
 
 const rulesDirPlugin = require('eslint-plugin-rulesdir')
@@ -13,7 +14,7 @@ module.exports = {
       files: ['**/*'],
       rules: {
         'multiline-comment-style': ['error', 'separate-lines'],
-        'rulesdir/enforce-retry-on-import': 'error',
+        'rulesdir/no-undefined-or': 'error',
       },
     },
     {
@@ -27,6 +28,7 @@ module.exports = {
     {
       files: ['**/*.ts', '**/*.tsx'],
       rules: {
+        '@typescript-eslint/no-restricted-imports': ['error', restrictedImports],
         'import/no-restricted-paths': [
           'error',
           {
@@ -57,5 +59,22 @@ module.exports = {
         ],
       },
     },
+    {
+      files: ['**/*.ts', '**/*.tsx'],
+      excludedFiles: ['src/analytics/*'],
+      rules: {
+        'no-restricted-imports': [
+          'error',
+          {
+            paths: [
+              {
+                name: '@uniswap/analytics',
+                message: `Do not import from '@uniswap/analytics' directly. Use 'analytics' instead.`,
+              },
+            ],
+          },
+        ],
+      },
+    },
   ],
 }

.github/actions/setup/action.yml

@@ -8,9 +8,9 @@ runs:
 
     - uses: actions/setup-node@v3
       with:
-        node-version: 14
+        node-version: 18
         registry-url: https://registry.npmjs.org
-        cache: 'yarn'
+        # cache is intentionally omitted, as it is faster with yarn v1 to cache node_modules.
 
     - uses: actions/cache@v3
       id: install-cache
@@ -19,13 +19,13 @@ runs:
         path: |
           node_modules
           !node_modules/.cache
-        key: ${{ runner.os }}-install-${{ hashFiles('**/yarn.lock') }}
+        key: ${{ runner.os }}-install-${{ hashFiles('yarn.lock') }}
     - if: steps.install-cache.outputs.cache-hit != 'true'
       run: yarn install --frozen-lockfile --ignore-scripts
       shell: bash
-
-    # Validators compile quickly, so caching can be omitted.
-    - run: yarn ajv
+    
+    # Run patch-package to apply patches to dependencies.
+    - run: yarn patch-package
       shell: bash
 
     # Contracts are compiled from source. If source hasn't changed, the contracts do not need to be re-compiled.
@@ -40,38 +40,10 @@ runs:
       run: yarn contracts
       shell: bash
 
-    # GraphQL is generated from schema. The schema is always fetched, but if unchanged, graphql does not need to be re-generated.
-    - run: yarn graphql:fetch
-      shell: bash
-    - uses: actions/cache@v3
-      id: graphql-cache
-      with:
-        path: src/graphql/**/__generated__
-        key: ${{ runner.os }}-graphql-${{ hashFiles('src/graphql/**/schema.graphql') }}
-    - if: steps.graphql-cache.outputs.cache-hit != 'true'
-      run: yarn graphql:generate
-      shell: bash
-
-    # Messages are extracted from source.
-    # A record of source file content hashes is maintained in node_modules/.cache/lingui by a custom extractor.
-    # Messages are always extracted, but extraction may rely on the custom extractor's loaded cache.
-    - uses: actions/cache@v3
-      id: i18n-extract-cache
-      with:
-        path: |
-          src/locales/en-US.po
-          node_modules/.cache
-        key: ${{ runner.os }}-i18n-extract-${{ github.run_id }}
-        restore-keys: ${{ runner.os }}-i18n-extract-
-    - run: yarn i18n:extract
-      shell: bash
-
-    # Translations are compiled from messages. If messages haven't changed, the translations do not need to be re-compiled.
-    - uses: actions/cache@v3
-      id: i18n-compile-cache
-      with:
-        path: src/locales/*.js
-        key: ${{ runner.os }}-i18n-compile-${{ hashFiles('src/locales/*.po') }}
-    - if: steps.i18n-compile-cache.outputs.cache-hit !='true'
-      run: yarn i18n:compile
+    # These operations cannot be cached, so they are run concurrently
+    # - ajv: Validators compile quickly, so caching can be omitted.
+    # - graphql: GraphQL is generated from schema and client-side graphql queries. The schema is always fetched and
+    #   changes to client-side queries are hard to detect, so it is always re-generated.
+    # - i18n: Messages are extracted from source and compiled. No caching extractor is available (out-of-the-box).
+    - run: yarn concurrently --max-processes=100% npm:ajv npm:graphql npm:i18n
       shell: bash

.github/pull_request_template.md

@@ -6,7 +6,7 @@
 
 
 <!-- Delete inapplicable lines: -->
-_JIRA ticket:_
+_Linear ticket:_
 _Slack thread:_
 _Relevant docs:_
 
@@ -14,9 +14,16 @@ _Relevant docs:_
 <!-- Delete this section if your change does not affect UI. -->
 ## Screen capture
 
-| Before       | After (Desktop) | After (Mobile) |
-| ------------ |---------------- | -------------- |
-| paste_before | past_after      | paste_after    |
+### Before
+|    Mobile    |   Desktop    |
+| ------------ | ------------ |
+| paste_before | paste_before |
+
+
+### After
+|    Mobile    |   Desktop   |
+| ------------ | ----------- |
+| paste_after  | paste_after |
 
 
 ## Test plan

.github/workflows/1-main-to-staging.yml

@@ -14,19 +14,60 @@ jobs:
     environment:
       name: push/staging
     steps:
+      - name: Check test status
+        uses: actions/github-script@v6.4.1
+        with:
+          script: |
+            const statuses = await github.rest.repos.listCommitStatusesForRef({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              ref: context.sha
+            })
+            const status = statuses.data.find(status => status.context === 'Test / promotion')?.state || 'missing'
+            core.info('Status: ' + status)
+            if (status !== 'success') {
+              core.setFailed('"Test / promotion" must be successful before pushing')
+            }
+
       - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
         with:
           token: ${{ secrets.RELEASE_SERVICE_ACCESS_TOKEN }}
           ref: main
+
+      # The source file must exist for the corresponding translation messages to be downloaded.
+      - run: touch src/locales/en-US.po
+      - name: Download translations
+        uses: crowdin/github-action@3133cc916c35590475cf6705f482fb653d8e36e9
+        with:
+          upload_sources: false
+          download_translations: true
+          project_id: 458284
+          token: ${{ secrets.CROWDIN_PERSONAL_TOKEN_SECRET }}
+          source: 'src/locales/en-US.po'
+          translation: 'src/locales/%locale%.po'
+          localization_branch_name: main
+          create_pull_request: false
+          push_translations: false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Git config
         run: |
-          git config user.name "UL Service Account"
-          git config user.email "hello-happy-puppy@users.noreply.github.com"
-      - name: Add CODEOWNERS file
+          git config user.name 'UL Service Account'
+          git config user.email 'hello-happy-puppy@users.noreply.github.com'
+
+      - name: Add translations
         run: |
-          echo "@uniswap/web-admins" > CODEOWNERS
+          rm src/locales/en-US.po
+          git add -f src/locales/*.po
+          git commit -m 'ci(t9n): download translations from crowdin'
+
+      - name: Add CODEOWNERS
+        run: |
+          echo '@uniswap/web-admins' > CODEOWNERS
           git add CODEOWNERS
-          git commit -m "ci: add global CODEOWNERS"
+          git commit -m 'ci: add global CODEOWNERS'
+
       - name: Git push
         run: |
           git push origin main:releases/staging --force

.github/workflows/2-deploy-to-staging.yml

@@ -10,17 +10,25 @@ jobs:
     environment:
       name: deploy/staging
     steps:
+      - uses: slackapi/slack-github-action@007b2c3c751a190b6f0f040e47ed024deaa72844
+        continue-on-error: true
+        with:
+          payload: |
+            {
+              "text": "Deploy _started_ for ${{ github.ref_name }}"
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
+
       - uses: actions/checkout@v3
       - uses: ./.github/actions/setup
-      - run: yarn prepare
       - run: yarn build
         env:
           REACT_APP_STAGING: 1
-      - name: Setup node@16 (required by Cloudflare Pages)
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16
+
       - name: Update Cloudflare Pages deployment
+        id: pages-deployment
         uses: cloudflare/pages-action@364c7ca09a4b57837c5967871d64a2c31adb8c0d
         with:
           apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
@@ -28,6 +36,21 @@ jobs:
           projectName: interface-staging
           directory: build
           githubToken: ${{ secrets.GITHUB_TOKEN }}
+          # Cloudflare uses `main` as the default production branch, so we push using the `main` branch so that it can be aliased by a custom domain.
+          branch: main
+
+      - uses: slackapi/slack-github-action@007b2c3c751a190b6f0f040e47ed024deaa72844
+        continue-on-error: true
+        if: always()
+        with:
+          payload: |
+            {
+              "text": "Deploy *${{ steps.pages-deployment.outcome }}* for ${{ github.ref_name }}"
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
+
       - name: Upload source maps to Sentry
         uses: getsentry/action-release@bd5f874fcda966ba48139b0140fb3ec0cb3aabdd
         continue-on-error: true

.github/workflows/3-staging-to-prod.yml

@@ -14,6 +14,21 @@ jobs:
     environment:
       name: push/prod
     steps:
+      - name: Check test status
+        uses: actions/github-script@v6.4.1
+        with:
+          script: |
+            const statuses = await github.rest.repos.listCommitStatusesForRef({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              ref: context.sha
+            })
+            const status = statuses.data.find(status => status.context === 'Test / promotion')?.state || 'missing'
+            core.info('Status: ' + status)
+            if (status !== 'success') {
+              core.setFailed('"Test / promotion" must be successful before pushing')
+            }
+
       - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
         with:
           token: ${{ secrets.RELEASE_SERVICE_ACCESS_TOKEN }}

.github/workflows/4-deploy-to-prod.yml

@@ -10,13 +10,24 @@ jobs:
     environment:
       name: deploy/prod
     steps:
+      - uses: slackapi/slack-github-action@007b2c3c751a190b6f0f040e47ed024deaa72844
+        continue-on-error: true
+        with:
+          payload: |
+            {
+              "text": "Deploy _started_ for ${{ github.ref_name }}"
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
+
       - uses: actions/checkout@v3
       - uses: ./.github/actions/setup
-      - run: yarn prepare
       - run: yarn build
+
       - name: Bump and tag
         id: github-tag-action
-        uses: mathieudutour/github-tag-action@v6.0
+        uses: mathieudutour/github-tag-action@d745f2e74aaf1ee82e747b181f7a0967978abee0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           release_branches: releases/prod
@@ -37,7 +48,7 @@ jobs:
         with:
           cidv0: ${{ steps.pinata.outputs.hash }}
 
-      - name: Release
+      - name: Publish release
         uses: actions/create-release@v1.1.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -63,21 +74,30 @@ jobs:
 
             ${{ steps.github-tag-action.outputs.changelog }}
 
-      - name: Setup node@16 (required by Cloudflare Pages)
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16
-
       - name: Update Cloudflare Pages deployment
         uses: cloudflare/pages-action@364c7ca09a4b57837c5967871d64a2c31adb8c0d
+        id: pages-deployment
         with:
           apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
           accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
           projectName: ${{ secrets.CLOUDFLARE_PROJECT_NAME }}
           directory: build
           githubToken: ${{ secrets.GITHUB_TOKEN }}
+          # Cloudflare uses `main` as the default production branch, so we push using the `main` branch so that it can be aliased by a custom domain.
           branch: main
 
+      - uses: slackapi/slack-github-action@007b2c3c751a190b6f0f040e47ed024deaa72844
+        continue-on-error: true
+        if: always()
+        with:
+          payload: |
+            {
+              "text": "Deploy *${{ steps.pages-deployment.outcome }}* for ${{ github.ref_name }}"
+            }
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
+
       - name: Upload source maps to Sentry
         uses: getsentry/action-release@4744f6a65149f441c5f396d5b0877307c0db52c7
         continue-on-error: true

.github/workflows/crowdin-sync.yaml

@@ -1,33 +0,0 @@
-name: Crowdin Download
-
-on:
-  schedule:
-    # Download translations every hour.
-    # This is not done as part of the build so that builds remain reproducible.
-    - cron: '0 * * * *'
-  # manual trigger
-  workflow_dispatch:
-
-jobs:
-  download-translations:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: ./.github/actions/setup
-      - run: yarn i18n:extract
-
-      - name: Download Crowdin translations
-        uses: crowdin/github-action@1.4.9
-        with:
-          upload_sources: false
-          download_translations: true
-          project_id: 458284
-          token: ${{ secrets.CROWDIN_PERSONAL_TOKEN_SECRET }}
-          source: 'src/locales/en-US.po'
-          translation: 'src/locales/%locale%.po'
-          create_pull_request: true
-          pull_request_title: 'chore(i18n): new Crowdin translations'
-          localization_branch_name: l10n_crowdin
-          commit_message: 'chore(i18n): synchronize translations from crowdin [skip ci]'
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/crowdin.yaml

@@ -14,7 +14,7 @@ jobs:
       - run: yarn i18n:extract
 
       - name: Upload Crowdin sources
-        uses: crowdin/github-action@1.1.0
+        uses: crowdin/github-action@3133cc916c35590475cf6705f482fb653d8e36e9
         with:
           upload_sources: true
           download_translations: false

.github/workflows/notify-slack-on-release-merge.yml

@@ -1,4 +1,4 @@
-name: Slack notifications for releases/* merges
+name: Slack notification on pushes to releases/*
 
 # This CI job will push notifications to Slack whenever code is merged into any releases/* branch
 #
@@ -11,8 +11,10 @@ name: Slack notifications for releases/* merges
 #  | sed 's/"//g' | sed 's/\\t/;/g' | sed 's/\\n/;/g' | sed 's/\\//g' \
 # We then use awk to format the TSV into a Slack message
 #  | awk -F';' '{print "• <"$1"|"$2"> (<https://github.com/"$3"|"$3">, "$4") - "$5}' \
-# Finally, we need to deal with some escaping issues with newlines so that we don't break the Slack message format
+# We need to deal with some escaping issues with newlines so that we don't break the Slack message format
 #  | sed 's/$/\\n/g' | tr -d '\n' \
+# Finally we have to truncate the message to 3,000 characters max, otherwise Slack will reject it
+#  | awk '{print substr($0,0,3000);}' \
 # Then shove the bytes into a file to store them in their exact format
 #  > /tmp/parsed_github_context
 
@@ -23,8 +25,9 @@ on:
 
 jobs:
   notify-slack:
-    name: 'Emit Slack notification(s)'
     runs-on: ubuntu-latest
+    environment:
+      name: notify/releases
     steps:
       - name: Parse event to slug
         id: parse-slug
@@ -38,11 +41,10 @@ jobs:
           | sed 's/"//g' | sed 's/\\t/;/g' | sed 's/\\n/;/g' | sed 's/\\//g' \
           | awk -F';' '{print "• <"$1"|"$2"> (<https://github.com/"$3"|"$3">, "$4") - "$5}' \
           | sed 's/$/\\n/g' | tr -d '\n' \
+          | awk '{print substr($0,0,3000);}' \
           > /tmp/parsed_github_context
           echo "SLACK_COMMITS=$(cat /tmp/parsed_github_context)" >> "$GITHUB_OUTPUT"
-      - name: Send custom JSON data to Slack workflow
-        id: slack
-        uses: slackapi/slack-github-action@007b2c3c751a190b6f0f040e47ed024deaa72844
+      - uses: slackapi/slack-github-action@007b2c3c751a190b6f0f040e47ed024deaa72844
         with:
           payload: |
             {

.github/workflows/release.yaml

@@ -1,125 +0,0 @@
-name: Release
-on:
-  schedule:
-    - cron: '0 16 * * 1-4' # every day 16:00 UTC Monday-Thursday
-  # manual trigger
-  workflow_dispatch:
-
-jobs:
-  wait-on-tests:
-    runs-on: ubuntu-latest
-    steps:
-      - id: unit-tests
-        uses: fountainhead/action-wait-for-check@v1.0.0
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          checkName: unit-tests
-      - id: cypress-tests
-        uses: fountainhead/action-wait-for-check@v1.0.0
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          checkName: cypress-tests
-      - if: steps.unit-tests.outputs.conclusion != 'success' || steps.cypress-tests.outputs.conclusion != 'success'
-        run: exit 1
-
-  tag:
-    needs: wait-on-tests
-    runs-on: ubuntu-latest
-    outputs:
-      new_tag: ${{ steps.github-tag-action.outputs.new_tag }}
-      changelog: ${{ steps.github-tag-action.outputs.changelog }}
-    steps:
-      - uses: actions/checkout@v3
-      - name: Bump and tag
-        id: github-tag-action
-        uses: mathieudutour/github-tag-action@v6.0
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          release_branches: .*
-          default_bump: patch
-
-  release:
-    needs: tag
-    if: ${{ needs.tag.outputs.new_tag != null }}
-    runs-on: ubuntu-latest
-    environment:
-        name: release
-    steps:
-      - uses: actions/checkout@v3
-      - uses: ./.github/actions/setup
-      - run: yarn build
-
-      - name: Pin to IPFS
-        id: pinata
-        uses: anantaramdas/ipfs-pinata-deploy-action@39bbda1ce1fe24c69c6f57861b8038278d53688d
-        with:
-          pin-name: Uniswap ${{ needs.tag.outputs.new_tag }}
-          path: './build'
-          pinata-api-key: ${{ secrets.PINATA_API_KEY }}
-          pinata-secret-api-key: ${{ secrets.PINATA_API_SECRET_KEY }}
-
-      - name: Pin to Crust
-        uses: crustio/ipfs-crust-action@v2.0.3
-        continue-on-error: true
-        timeout-minutes: 2
-        with:
-          cid: ${{ steps.pinata.outputs.hash }}
-          seeds: ${{ secrets.CRUST_SEEDS }}
-
-      - name: Convert CIDv0 to CIDv1
-        id: convert-cidv0
-        uses: uniswap/convert-cidv0-cidv1@v1.0.0
-        with:
-          cidv0: ${{ steps.pinata.outputs.hash }}
-
-      - name: Release
-        uses: actions/create-release@v1.1.0
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ needs.tag.outputs.new_tag }}
-          release_name: Release ${{ needs.tag.outputs.new_tag }}
-          body: |
-            IPFS hash of the deployment:
-            - CIDv0: `${{ steps.pinata.outputs.hash }}`
-            - CIDv1: `${{ steps.convert-cidv0.outputs.cidv1 }}`
-
-            The latest release is always accessible via our alias to the Cloudflare IPFS gateway at [app.uniswap.org](https://app.uniswap.org).
-
-            You can also access the Uniswap Interface directly from an IPFS gateway.
-            **BEWARE**: The Uniswap interface uses [`localStorage`](https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage) to remember your settings, such as which tokens you have imported.
-            **You should always use an IPFS gateway that enforces origin separation**, or our alias to the latest release at [app.uniswap.org](https://app.uniswap.org).
-            Your Uniswap settings are never remembered across different URLs.
-
-            IPFS gateways:
-            - https://${{ steps.convert-cidv0.outputs.cidv1 }}.ipfs.dweb.link/
-            - https://${{ steps.convert-cidv0.outputs.cidv1 }}.ipfs.cf-ipfs.com/
-            - [ipfs://${{ steps.pinata.outputs.hash }}/](ipfs://${{ steps.pinata.outputs.hash }}/)
-
-            ${{ needs.tag.outputs.changelog }}
-
-      - name: Setup node@16 (required by Cloudflare Pages)
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16
-
-      - name: Update Cloudflare Pages deployment
-        uses: cloudflare/pages-action@364c7ca09a4b57837c5967871d64a2c31adb8c0d
-        with:
-          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
-          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
-          projectName: ${{ secrets.CLOUDFLARE_PROJECT_NAME }}
-          directory: build
-          githubToken: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Upload source maps to Sentry
-        uses: getsentry/action-release@4744f6a65149f441c5f396d5b0877307c0db52c7
-        continue-on-error: true
-        env:
-          SENTRY_AUTH_TOKEN: ${{ secrets.SENTRY_AUTH_TOKEN }}
-          SENTRY_ORG: ${{ secrets.SENTRY_ORG }}
-          SENTRY_PROJECT: ${{ secrets.SENTRY_PROJECT }}
-        with:
-          environment: production
-          sourcemaps: './build/static/js'
-          url_prefix: '~/static/js'

.github/workflows/test.yml

@@ -1,7 +1,7 @@
 name: Test
 
 # Many build steps have their own caches, so each job has its own cache to improve subsequent build times.
-# Build tools are configured to cache cache to node_modules/.cache, so this is cached independently of node_modules.
+# Build tools are configured to cache to node_modules/.cache, so they are cached independently of node_modules.
 # Caches are saved every run (by keying on github.run_id), and the most recent available cache is loaded.
 # See https://jongleberry.medium.com/speed-up-your-ci-and-dx-with-node-modules-cache-ac8df82b7bb0.
 
@@ -9,9 +9,8 @@ on:
   push:
     branches:
       - main
+      - releases/staging
   pull_request:
-  # manual trigger
-  workflow_dispatch:
 
 jobs:
   lint:
@@ -20,11 +19,10 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/setup
       - uses: actions/cache@v3
-        id: eslint-cache
         with:
           path: node_modules/.cache
-          key: ${{ runner.os }}-eslint-${{ hashFiles('**/yarn.lock') }}-${{ github.run_id }}
-          restore-keys: ${{ runner.os }}-eslint-${{ hashFiles('**/yarn.lock') }}-
+          key: ${{ runner.os }}-eslint-${{ github.run_id }}
+          restore-keys: ${{ runner.os }}-eslint-
       - run: yarn lint
       - if: failure() && github.ref_name == 'main'
         uses: ./.github/actions/report
@@ -38,11 +36,10 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/setup
       - uses: actions/cache@v3
-        id: tsc-cache
         with:
           path: node_modules/.cache
-          key: ${{ runner.os }}-tsc-${{ hashFiles('**/yarn.lock') }}-${{ github.run_id }}
-          restore-keys: ${{ runner.os }}-tsc-${{ hashFiles('**/yarn.lock') }}-
+          key: ${{ runner.os }}-tsc-${{ github.run_id }}
+          restore-keys: ${{ runner.os }}-tsc-
       - run: yarn typecheck
       - if: failure() && github.ref_name == 'main'
         uses: ./.github/actions/report
@@ -68,17 +65,15 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/setup
       - uses: actions/cache@v3
-        id: jest-cache
         with:
           path: node_modules/.cache
-          key: ${{ runner.os }}-jest-${{ hashFiles('**/yarn.lock') }}-${{ github.run_id }}
-          restore-keys: ${{ runner.os }}-jest-${{ hashFiles('**/yarn.lock') }}-
+          key: ${{ runner.os }}-jest-${{ github.run_id }}
+          restore-keys: ${{ runner.os }}-jest-
       - run: yarn test --coverage --maxWorkers=100%
       - uses: codecov/codecov-action@v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: false
-          verbose: true
           flags: unit-tests
       - if: failure() && github.ref_name == 'main'
         uses: ./.github/actions/report
@@ -86,26 +81,40 @@ jobs:
           name: Unit tests
           SLACK_WEBHOOK_URL: ${{ secrets.SLACK_TEST_REPORTER_WEBHOOK }}
 
-  build-e2e:
+  build:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/setup
       - uses: actions/cache@v3
-        id: build-e2e-cache
         with:
-          path: node_modules/.cache
-          key: ${{ runner.os }}-build-e2e-${{ hashFiles('**/yarn.lock') }}-${{ github.run_id }}
-          restore-keys: ${{ runner.os }}-build-e2e-${{ hashFiles('**/yarn.lock') }}-
-      - run: yarn build:e2e
-        env:
-          NODE_OPTIONS: "--max_old_space_size=4096"
-      - uses: actions/upload-artifact@v2
+          path: node_modules/.swc
+          key: ${{ runner.os }}-swc-${{ github.run_id }}
+          restore-keys: ${{ runner.os }}-swc-
+      - run: yarn build
+      - uses: actions/upload-artifact@v3
         with:
-          name: build-e2e
+          name: build
           path: build
           if-no-files-found: error
 
+  cypress-typecheck:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/setup
+      - uses: actions/cache@v3
+        with:
+          path: node_modules/.cache
+          key: ${{ runner.os }}-cypress-tsc-${{ github.run_id }}
+          restore-keys: ${{ runner.os }}-cypress-tsc-
+      - run: yarn typecheck:cypress
+      - if: failure() && github.ref_name == 'main'
+        uses: ./.github/actions/report
+        with:
+          name: Cypress typecheck
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_TEST_REPORTER_WEBHOOK }}
+
   # Allows for parallel re-runs of cypress tests without re-building.
   cypress-rerun:
     runs-on: ubuntu-latest
@@ -113,9 +122,8 @@ jobs:
       - run: exit 0
 
   cypress-test-matrix:
-    needs: [build-e2e, cypress-rerun]
+    needs: [build, cypress-rerun]
     runs-on: ubuntu-latest
-    container: cypress/browsers:node-18.14.1-chrome-111.0.5563.64-1-ff-111.0-edge-111.0.1661.43-1
     strategy:
       fail-fast: false
       matrix:
@@ -124,49 +132,139 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/setup
       - uses: actions/cache@v3
-        id: cypress-cache
         with:
           path: /root/.cache/Cypress
-          key: ${{ runner.os }}-cypress
+          key: ${{ runner.os }}-cypress-${{ hashFiles('**/node_modules/cypress/package.json') }}
       - run: |
           yarn cypress install
           yarn cypress info
 
       - uses: actions/download-artifact@v3
         with:
-          name: build-e2e
+          name: build
           path: build
 
+      - uses: actions/cache/restore@v3
+        with:
+          path: cache
+          key: ${{ runner.os }}-hardhat-${{ hashFiles('hardhat.config.js') }}-${{ github.run_id }}
+          restore-keys: ${{ runner.os }}-hardhat-${{ hashFiles('hardhat.config.js') }}-
+
       - uses: cypress-io/github-action@v4
         with:
           install: false
-          start: yarn serve
-          wait-on: 'http://localhost:3000'
-          browser: chrome
           record: true
           parallel: true
+          start: yarn serve
+          wait-on: 'http://localhost:3000'
+          browser: electron
+          group: e2e
+          spec: ${{ github.ref_name == 'releases/staging' && 'cypress/{e2e,staging}/**/*.test.ts' || 'cypress/e2e/**/*.test.ts' }}
         env:
           CYPRESS_RECORD_KEY: ${{ secrets.CYPRESS_RECORD_KEY }}
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - uses: codecov/codecov-action@v3
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          fail_ci_if_error: false
-          verbose: true
-          flags: e2e-tests
-
-  # Included as a single job to check for cypress-test-matrix success, as a matrix cannot be checked.
-  cypress-tests:
-    if: always()
-    needs: [cypress-test-matrix]
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - if: needs.cypress-test-matrix.result != 'success'
-        run: exit 1
+          COMMIT_INFO_BRANCH: ${{ github.event.pull_request.head.ref || github.ref_name }}
+          COMMIT_INFO_MESSAGE: ${{ github.event.pull_request.title || github.event.head_commit.message }}
+          COMMIT_INFO_AUTHOR: ${{ github.event.sender.login || github.event.head_commit.author.login }}
+          # Cypress requires an email for filtering by author, but GitHub does not expose one.
+          # GitHub's public profile email can be deterministically produced from user id/login.
+          COMMIT_INFO_EMAIL: ${{ github.event.sender.id || github.event.head_commit.author.id }}+${{ github.event.sender.login || github.event.head_commit.author.login }}@users.noreply.github.com
+          COMMIT_INFO_SHA: ${{ github.event.pull_request.head.sha || github.event.head_commit.sha }}
+          COMMIT_INFO_TIMESTAMP: ${{ github.event.pull_request.updated_at || github.event.head_commit.timestamp }}
+          CYPRESS_PULL_REQUEST_ID: ${{ github.event.pull_request.number }}
+          CYPRESS_PULL_REQUEST_URL: ${{ github.event.pull_request.html_url }}
       - if: failure() && github.ref_name == 'main'
         uses: ./.github/actions/report
         with:
           name: Cypress tests
           SLACK_WEBHOOK_URL: ${{ secrets.SLACK_TEST_REPORTER_WEBHOOK }}
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: hardhat-cache
+          path: cache
+
+  hardhat-cache:
+    needs: [cypress-test-matrix]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/download-artifact@v3
+        with:
+          name: hardhat-cache
+          path: cache
+      - uses: actions/cache/save@v3
+        with:
+          path: cache
+          key: ${{ runner.os }}-hardhat-${{ hashFiles('hardhat.config.js') }}-${{ github.run_id }}
+
+  cloud-typecheck:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/setup
+      - uses: actions/cache@v3
+        with:
+          path: node_modules/.cache
+          key: ${{ runner.os }}-cloud-tsc-${{ github.run_id }}
+          restore-keys: ${{ runner.os }}-cloud-tsc-
+      - run: yarn typecheck:cloud
+      - if: failure() && github.ref_name == 'main'
+        uses: ./.github/actions/report
+        with:
+          name: Cloud typecheck
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_TEST_REPORTER_WEBHOOK }}
+
+  # TODO(WEB-2537): Setup CodeCOV
+  cloud-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/setup
+      - uses: actions/cache@v3
+        with:
+          path: node_modules/.cache
+          key: ${{ runner.os }}-cloud-jest-${{ github.run_id }}
+          restore-keys: ${{ runner.os }}-cloud-jest-
+      - run: yarn test:cloud --coverage --maxWorkers=100%
+        
+  pre:
+    if: ${{ github.ref_name == 'main' || github.ref_name == 'releases/staging' }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/github-script@v6.4.1
+        with:
+          script: |
+            github.rest.repos.createCommitStatus({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              sha: context.sha,
+              state: 'pending',
+              context: 'Test / promotion',
+              description: 'Running tests...',
+              target_url: 'https://github.com/Uniswap/interface/actions/runs/' + context.runId
+            })
+
+  post:
+    if: ${{ github.ref_name == 'main' || github.ref_name == 'releases/staging' }}
+    needs: [pre, lint, typecheck, deps-tests, unit-tests, cypress-test-matrix]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/github-script@v6.4.1
+        with:
+          script: |
+            github.rest.repos.createCommitStatus({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              sha: context.sha,
+              state: ${{ env.STATUS }} ? 'success' : 'failure',
+              context: 'Test / promotion',
+              description: ${{ env.STATUS }} ? 'All tests passed' : 'One or more tests failed and are blocking promotion',
+              target_url: 'https://github.com/Uniswap/interface/actions/runs/' + context.runId
+            })
+        env:
+          STATUS: |
+            ${{ needs.lint.result == 'success' }} &&
+            ${{ needs.typecheck.result == 'success' }} &&
+            ${{ needs.deps-tests.result == 'success' }} &&
+            ${{ needs.unit-tests.result == 'success' }} &&
+            ${{ needs.cypress-test-matrix.result == 'success' }}

.gitignore

@@ -5,8 +5,7 @@
 /src/types/v3
 /src/abis/types
 /src/locales/**/*.js
-/src/locales/**/en-US.po
-/src/locales/**/pseudo.po
+/src/locales/**/*.po
 
 # generated files
 /src/**/__generated__
@@ -20,6 +19,8 @@ schema.graphql
 # testing
 /coverage
 /cache
+/functions/coverage
+/.swc
 
 # builds
 /build
@@ -47,7 +48,10 @@ notes.txt
 
 package-lock.json
 
+cypress/downloads
 cypress/videos
 cypress/screenshots
 
 .vercel
+
+.wrangler

.nvmrc

@@ -1 +1 @@
-14.20.0
+v18.16.0

.swcrc

@@ -0,0 +1,36 @@
+{
+  "$schema": "https://json.schemastore.org/swcrc",
+  // has to duplicate from package.json, see swc issue: https://swc.rs/docs/configuration/compilation#env
+  // this breaks jest because jest is setting target for some reason
+  // "env": {
+  //   "targets": "> 0.5%, not dead"
+  // },
+  "jsc": {
+    // without this swc breaks WalletConnect class super() call
+    "target": "es2020",
+    "keepClassNames": true,
+    "experimental": {
+      "plugins": [
+        [
+          "@lingui/swc-plugin",
+          {}
+        ],
+        [
+          "@swc/plugin-styled-components",
+          {
+            "displayName": true
+          }
+        ]
+      ]
+    },
+    "parser": {
+      "syntax": "typescript",
+      "tsx": true
+    },
+    "transform": {
+      "react": {
+        "runtime": "automatic"
+      }
+    }
+  }
+}

.vscode/settings.json

@@ -12,5 +12,14 @@
   },
   "files.eol": "\n",
   "eslint.enable": true,
-  "eslint.debug": true
+  "eslint.debug": true,
+  "[javascript]": {
+    "editor.defaultFormatter": "dbaeumer.vscode-eslint"
+  },
+  "[typescript]": {
+    "editor.defaultFormatter": "dbaeumer.vscode-eslint"
+  },
+  "[typescriptreact]": {
+    "editor.defaultFormatter": "dbaeumer.vscode-eslint"
+  },
 }

CODEOWNERS

@@ -0,0 +1 @@
+@uniswap/web-admins

README.md

@@ -69,10 +69,10 @@ Other things to note:
 
 The Uniswap Interface supports swapping, adding liquidity, removing liquidity and migrating liquidity for Uniswap protocol V2.
 
-- Swap on Uniswap V2: <https://app.uniswap.org/#/swap?use=v2>
-- View V2 liquidity: <https://app.uniswap.org/#/pools/v2>
-- Add V2 liquidity: <https://app.uniswap.org/#/add/v2>
-- Migrate V2 liquidity to V3: <https://app.uniswap.org/#/migrate/v2>
+- Swap on Uniswap V2: <https://app.uniswap.org/swap?use=v2>
+- View V2 liquidity: <https://app.uniswap.org/pools/v2>
+- Add V2 liquidity: <https://app.uniswap.org/add/v2>
+- Migrate V2 liquidity to V3: <https://app.uniswap.org/migrate/v2>
 
 ## Accessing Uniswap V1
 

babel-plugin-macros.config.js

@@ -1,10 +0,0 @@
-/* eslint-env node */
-
-const isDev = process.env.NODE_ENV === 'development'
-
-module.exports = {
-  styledComponents: {
-    fileName: isDev,
-    displayName: isDev,
-  },
-}

codecov.yml

@@ -6,20 +6,33 @@ ignore:
   - "**/instrumented/**/*"
   - "**/styles/**/*"
   - "styles/**/*"
+  - "**/styled.tsx"
   - "**/constants/**/*"
   - "constants/**/*"
 
+coverage:
+  status:
+    project: off
+    patch: off
+
 flag_management:
   default_rules:
     statuses:
       - type: project
         target: auto
         threshold: 1%
+        # Adjust the base when removing code to avoid penalizing tech debt payback / dead code removal.
+        removed_code_behavior: adjust_base
         if_ci_failed: error
       - type: patch
-        target: 80%
+        target: 50%
   individual_flags:
-    - name: e2e-tests
-      statuses:
-        - type: patch
-          target: 0%
+    - name: unit-tests
+
+comment:
+  layout: flags
+  hide_comment_details: false
+
+github_checks:
+  # Turn off GitHub Check annotations, as they make it more difficult to review code.
+  annotations: false

craco.config.cjs

@@ -5,11 +5,15 @@ const { execSync } = require('child_process')
 const MiniCssExtractPlugin = require('mini-css-extract-plugin')
 const path = require('path')
 const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin')
-const { DefinePlugin, IgnorePlugin, ProvidePlugin } = require('webpack')
+const TerserPlugin = require('terser-webpack-plugin')
+const { IgnorePlugin, ProvidePlugin } = require('webpack')
+const { RetryChunkLoadPlugin } = require('webpack-retry-chunk-load-plugin')
 
 const commitHash = execSync('git rev-parse HEAD').toString().trim()
 const isProduction = process.env.NODE_ENV === 'production'
 
+process.env.REACT_APP_GIT_COMMIT_HASH = commitHash
+
 // Linting and type checking are only necessary as part of development and testing.
 // Omit them from production builds, as they slow down the feedback loop.
 const shouldLintOrTypeCheck = !isProduction
@@ -20,32 +24,6 @@ function getCacheDirectory(cacheName) {
 }
 
 module.exports = {
-  babel: {
-    plugins: [
-      '@vanilla-extract/babel-plugin',
-      ...(process.env.REACT_APP_ADD_COVERAGE_INSTRUMENTATION
-        ? [
-            [
-              'istanbul',
-              {
-                all: true,
-                include: ['src/**/*.tsx', 'src/**/*.ts'],
-                exclude: [
-                  'src/**/*.css',
-                  'src/**/*.css.ts',
-                  'src/**/*.test.ts',
-                  'src/**/*.test.tsx',
-                  'src/**/*.spec.ts',
-                  'src/**/*.spec.tsx',
-                  'src/**/graphql/**/*',
-                  'src/**/*.d.ts',
-                ],
-              },
-            ],
-          ]
-        : []),
-    ],
-  },
   eslint: {
     enable: shouldLintOrTypeCheck,
     pluginOptions(eslintConfig) {
@@ -68,15 +46,19 @@ module.exports = {
     configure(jestConfig) {
       return Object.assign(jestConfig, {
         cacheDirectory: getCacheDirectory('jest'),
-        transform: Object.assign(jestConfig.transform, {
+        transform: {
+          ...Object.entries(jestConfig.transform).reduce((transform, [key, value]) => {
+            if (value.match(/babel/)) return transform
+            return { ...transform, [key]: value }
+          }, {}),
           // Transform vanilla-extract using its own transformer.
           // See https://sandroroth.com/blog/vanilla-extract-cra#jest-transform.
           '\\.css\\.ts$': '@vanilla-extract/jest-transform',
-        }),
+          '\\.(t|j)sx?$': '@swc/jest',
+        },
         // Use @uniswap/conedison's build directly, as jest does not support its exports.
-        transformIgnorePatterns: ['@uniswap/conedison/format', '@uniswap/conedison/provider'],
+        transformIgnorePatterns: ['@uniswap/conedison/provider'],
         moduleNameMapper: {
-          '@uniswap/conedison/format': '@uniswap/conedison/dist/format',
           '@uniswap/conedison/provider': '@uniswap/conedison/dist/provider',
         },
       })
@@ -87,25 +69,24 @@ module.exports = {
       // Webpack 5 does not polyfill node globals, so we do so for those necessary:
       new ProvidePlugin({
         // - react-markdown requires process.cwd
-        process: 'process/browser',
+        process: 'process/browser.js',
+      }),
+      new VanillaExtractPlugin(),
+      new RetryChunkLoadPlugin({
+        cacheBust: `function() {
+          return 'cache-bust=' + Date.now();
+        }`,
+        // Retries with exponential backoff (500ms, 1000ms, 2000ms).
+        retryDelay: `function(retryAttempt) {
+          return 2 ** (retryAttempt - 1) * 500;
+        }`,
+        maxRetries: 3,
       }),
-      // vanilla-extract has poor performance on M1 machines with 'debug' identifiers, so we use 'short' instead.
-      // See https://vanilla-extract.style/documentation/integrations/webpack/#identifiers for docs.
-      // See https://github.com/vanilla-extract-css/vanilla-extract/issues/771#issuecomment-1249524366.
-      new VanillaExtractPlugin({ identifiers: 'short' }),
     ],
     configure: (webpackConfig) => {
       // Configure webpack plugins:
       webpackConfig.plugins = webpackConfig.plugins
         .map((plugin) => {
-          // Extend process.env with dynamic values (eg commit hash).
-          // This will make dynamic values available to JavaScript only, not to interpolated HTML (ie index.html).
-          if (plugin instanceof DefinePlugin) {
-            Object.assign(plugin.definitions['process.env'], {
-              REACT_APP_GIT_COMMIT_HASH: JSON.stringify(commitHash),
-            })
-          }
-
           // CSS ordering is mitigated through scoping / naming conventions, so we can ignore order warnings.
           // See https://webpack.js.org/plugins/mini-css-extract-plugin/#remove-order-warnings.
           if (plugin instanceof MiniCssExtractPlugin) {
@@ -152,13 +133,9 @@ module.exports = {
 
       // Configure webpack transpilation (create-react-app specifies transpilation rules in a oneOf):
       webpackConfig.module.rules[1].oneOf = webpackConfig.module.rules[1].oneOf.map((rule) => {
-        // The fallback rule (eg for dependencies).
-        if (rule.loader && rule.loader.match(/babel-loader/) && !rule.include) {
-          // Allow not-fully-specified modules so that legacy packages are still able to build.
-          rule.resolve = { fullySpecified: false }
-
-          // The class properties transform is required for @uniswap/analytics to build.
-          rule.options.plugins.push('@babel/plugin-proposal-class-properties')
+        if (rule.loader && rule.loader.match(/babel-loader/)) {
+          rule.loader = 'swc-loader'
+          delete rule.options
         }
         return rule
       })
@@ -166,6 +143,15 @@ module.exports = {
       // Configure webpack optimization:
       webpackConfig.optimization = Object.assign(
         webpackConfig.optimization,
+        {
+          minimize: isProduction,
+          minimizer: [
+            new TerserPlugin({
+              minify: TerserPlugin.swcMinify,
+              parallel: require('os').cpus().length,
+            }),
+          ],
+        },
         isProduction
           ? {
               splitChunks: {
@@ -181,16 +167,15 @@ module.exports = {
           : {}
       )
 
-      // Configure webpack caching:
-      webpackConfig.cache = Object.assign(webpackConfig.cache, {
-        cacheDirectory: getCacheDirectory('webpack'),
-      })
+      // Configure webpack resolution. webpackConfig.cache is unused with swc-loader, but the resolver can still cache:
+      webpackConfig.resolve = Object.assign(webpackConfig.resolve, { unsafeCache: true })
 
-      // Ignore failed source mappings to avoid spamming the console.
-      // Source mappings for a package will fail if the package does not provide them, but the build will still succeed,
-      // so it is unnecessary (and bothersome) to log it. This should be turned off when debugging missing sourcemaps.
-      // See https://webpack.js.org/loaders/source-map-loader#ignoring-warnings.
-      webpackConfig.ignoreWarnings = [/Failed to parse source map/]
+      webpackConfig.ignoreWarnings = [
+        // Source mappings for a package will fail if the package does not provide them, but the build will still succeed,
+        // so it is unnecessary (and bothersome) to log it. This should be turned off when debugging missing sourcemaps.
+        // See https://webpack.js.org/loaders/source-map-loader#ignoring-warnings.
+        /Failed to parse source map/,
+      ]
 
       return webpackConfig
     },

cypress.config.ts

@@ -1,25 +1,19 @@
-import codeCoverageTask from '@cypress/code-coverage/task'
 import { defineConfig } from 'cypress'
 import { setupHardhatEvents } from 'cypress-hardhat'
 
 export default defineConfig({
   projectId: 'yp82ef',
-  videoUploadOnPasses: false,
   defaultCommandTimeout: 24000, // 2x average block time
   chromeWebSecurity: false,
+  experimentalMemoryManagement: true, // better memory management, see https://github.com/cypress-io/cypress/pull/25462
   retries: { runMode: 2 },
+  video: false, // GH provides 2 CPUs, and cypress video eats one up, see https://github.com/cypress-io/cypress/issues/20468#issuecomment-1307608025
   e2e: {
     async setupNodeEvents(on, config) {
       await setupHardhatEvents(on, config)
-      codeCoverageTask(on, config)
-      return {
-        ...config,
-        // Only enable Chrome.
-        // Electron (the default) has issues injecting window.ethereum before pageload, so it is not viable.
-        browsers: config.browsers.filter(({ name }) => name === 'chrome'),
-      }
+      return config
     },
     baseUrl: 'http://localhost:3000',
-    specPattern: 'cypress/e2e/**/*.{js,jsx,ts,tsx}',
+    specPattern: 'cypress/{e2e,staging}/**/*.test.ts',
   },
 })

cypress/README.md

@@ -0,0 +1,201 @@
+# e2e testing with Cypress
+
+End-to-end tests are run through [Cypress](https://docs.cypress.io/api/table-of-contents/), which runs tests in a real browser. Cypress is a little different than other testing frameworks, and e2e tests are a little different than unit tests, so this directory has its own set of patterns, idioms, and best practices. Not only that, but we're testing against a forked blockchain, not just against typical Web APIs, so we have unique flows that you may not have seen elsewhere.
+
+## Running your first e2e tests
+
+Cypress tests run against a local server, so you'll need to run the application locally at the same time. The fastest way to run e2e tests is to use your dev server: `yarn start`.
+
+Open cypress at the same time with `yarn cypress:open`. You should do this from another window or tab, so that you can continue to see any typechecking/linting warnings from `yarn start`.
+
+Cypress opens its own instance of Chrome, with a list of "E2E specs" for you to select. When you're developing locally, you usually only want to run one spec file at a time. Select your spec by clicking on the filename and it will run.
+
+## Glossary
+
+#### spec
+Cypress considers each file a separate spec, or collection of tests.
+Specs are always run as a whole through `yarn cypress:open` or on the same machine through CI.
+
+#### Thenable
+Cypress queues commands to run in the browser using [Thenables](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise#thenables), not Promises.
+For this reason, you should not use `async/await` syntax in Cypress unless it is wholly-contained in a `cy.then` function argument.
+
+## Writing your first e2e test
+
+_For an excellent treatment on tests, check out the [Cypress Fundamentals](https://learn.cypress.io/cypress-fundamentals/how-to-write-a-test) course._
+_While some of that will be paraphrased here, this should be sufficient to get you started:_
+
+### What is a test?
+
+Cypress tests are just like any other test: you should set up an initial state, execute an action, and verify the action's consequence. This is codified in the AAA (Arrange-Act-Assert) pattern, and you'll see this in most of our tests. In _our_ case, it plays out as:
+
+1. Arrange: Visit a page, eg `cy.visit('/swap')`, and set up the state, on the blockchain and the page.
+2. Act: Initiate your action under test, eg `initiateSwap()`
+3. Assert: Verify that the action has occured, eg `// Verify swap has occured`
+
+You'll usually see the setup, followed by a newline, followed by assertions with comments stating what they are asserting.
+Because Cypress tests are translated into user actions, it may be hard to follow the action being described. You should use comments liberally to describe what you are doing and what you intend to test, to make tests easier to read and maintain in the future.
+
+### Thinking about tests: queuing up a sequence of commands
+
+Cypress uses `Thenable`s to achieve "command chaining". A test is described as a series of commands, which are only executed once the previous command in the chain has executed.
+
+```
+cy.visit('/swap')
+cy.contains('Select token').click()
+cy.contains('DAI').click()
+```
+
+In this example, `cy.contains('Select token').click()` is queued up right away (all the code is synchronous), but it will not execute until `/swap` has loaded (all the commands are chained); and `click()` will not execute until `Select token` has been found.
+
+This becomes more relevant as you work with data on the blockchain, as you'll need to load it at the correct time, _after_ it's been modified by the application:
+
+```
+cy.hardhat().then(async (hardhat) => {
+  cy.visit(`/swap?inputCurrency=ETH&outputCurrency=${USDC_MAINNET.address}`)
+  cy.get('#swap-currency-output .token-amount-input').type('1').should('have.value', '1')
+  cy.get('#swap-button').click()
+  cy.contains('Confirm swap').click()
+
+  // wait for the transaction to be executed
+  cy.get(getTestSelector('web3-status-connected')).should('contain', '1 Pending')
+  cy.get(getTestSelector('web3-status-connected')).should('not.contain', 'Pending')
+
+  // BAD: This will get the balance _before_ the other queued actions have executed.
+  const balance = await hardhat.getBalance(hardhat.wallet, USDC_MAINNET)
+  cy.wrap(balance).should('deep.equal', expectedBalance)
+})
+```
+
+```
+  cy.visit(`/swap?inputCurrency=ETH&outputCurrency=${USDC_MAINNET.address}`)
+  cy.get('#swap-currency-output .token-amount-input').type('1').should('have.value', '1')
+  cy.get('#swap-button').click()
+  cy.contains('Confirm swap').click()
+
+  // wait for the transaction to be executed
+  cy.get(getTestSelector('web3-status-connected')).should('contain', '1 Pending')
+  cy.get(getTestSelector('web3-status-connected')).should('not.contain', 'Pending')
+
+  // GOOD: cy.then chains the command so that it runs _after_ executing the swap
+  cy.hardhat()
+    .then((hardhat) => hardhat.getBalance(hardhat.wallet, USDC_MAINNET))
+    .should('deep.equal', expectedBalance)
+})
+```
+
+### Working with the blockchain (ie hardhat)
+
+Our tests use a local hardhat node to simulate blockchain transactions. This can be accessed with `cy.hardhat().then((hardhat) => ...)`.
+
+By default, automining is turned on, so that any transaction that you send to the blockchain is mined immediately. If you want to assert on intermediate states (between sending a transaction and mining it), you can turn off automining: `cy.hardhat({ automine: false })`.
+
+The hardhat integration has built-in utilities to let you modify and assert on balances, approvals, and permits, and should be fully typed. Check it out at [Uniswap/cypress-hardhat](https://github.com/Uniswap/cypress-hardhat).
+
+### Asserting on wallet methods
+
+Wallet methods to hardhat are all aliased. If you'd like to assert that a method was sent to the wallet, you can do so using the method name, prefixed with `@`:
+
+```
+// Asserts that `eth_sendRawTransaction` was sent to the wallet.
+cy.wait('@eth_sendRawTransaction')
+```
+
+Sometimes, you may want a method to _fail_. In this case, you can stub it, but you should disable logging to avoid spamming the test:
+
+```
+// Stub calls to eth_signTypedData_v4 and fail them
+cy.hardhat().then((hardhat) => {
+  // Note the closure to keep signTypedDataStub in scope. Using closures instead of variables (eg let) helps prevent misuse of chaining.
+  const signTypedDataStub = cy.stub(hardhat.provider, 'send').log(false)
+  signTypedDataStub.withArgs('eth_signTypedData_v4).rejects(USER_REJECTION)
+  signTypedDataStub.callThrough() // allws other methods to call through to hardhat
+
+  cy.contains('Confirm swap').click()
+
+  // Verify the call occured
+  // Note the call to cy.wrap to correctly queue the chained command. Without this, the test would occur before the stub is called.
+  cy.wrap(permitApprovalStub).should('be.calledWith', 'eth_signTypedData_v4')
+
+  // Restore the stub
+  // note the call to cy.then to correctly queue the chained command. Without this, the stub would be restored immediately.
+  cy.then(() => permitApprovalStub.restore())
+})
+```
+
+## Best practices
+
+<!-- Best practices should all be labeled using H3, with the rationale italicized at the end of the section. -->
+<!-- Best practice 🤣 is to also include an example before your rationale. -->
+
+### Spec / test grouping
+
+Each spec should be specific to one route, _not_ one functional behavior.
+For example, `token-details.test.ts` is separated from `swap.test.ts`.
+
+If a route has different functional behaviors, that route should become a directory name, and its spec should be split.
+For example, `swap.test.ts` may be split into `swap/swap.test.ts`, `swap/wrap.test.ts`, `swap/permit2.test.ts`.
+
+_This prevents specs from growing too large, which is important because they are always run as a whole locally and on the same machine through CI. If a spec grows too large, it will have a longer local feedback loop, and it will become the bottleneck for CI test runtime._
+
+_Similarly, avoid actions outside the scope of your spec, as it will cause total testing time to increase._
+
+### Use closures instead of variables
+
+Avoid usage of `let`, instead assigning a constant. In practice, this means using closures for your variables:
+
+```javascript
+let badVariable
+
+cy.hardhat({ automine: false })
+  .then((hardhat) => cy.then(() => hardhat.provider.getBalance(hardhat.wallet.address)))
+  .then((initialBalance) => {
+    // Do not assign to a variable outside of your closure!
+    badVariable = initialBalance // <-- bad!
+
+    // Use initial balance here, within the closure.
+  })
+
+cy.get('.class-name').then((el) => {
+  // Do not use badVariable here! It may have changed value due to the queued async nature of Cypress.
+  expect(el).should('contain', badVariable) // <-- bad!
+})
+```
+
+_This prevents misuse of a not-yet-initialized variable, or a variable that has changed as the test progresses._
+
+### Prefer selecting elements using on-screen text over data-testid attributes
+
+When selecting components (eg with `cy.get`), prefer defining your selector with visible UI. Sometimes this is not possible (eg if the text is duplicated on-screen), and you'll need to add a `data-testid` property.
+
+_Defining tests using visual fields helps ensure that we don't break them. `data-testid` may select an element that is only selectable programmatically, and should be used only when necessary, as its use may cover up UI breakages._
+
+_You'll still want to use `data-testid` in cases where the text is rendered in multiple containers and you need to select the correct one, or where the component doesn't render predictable text output._
+
+### Avoid branching logic
+
+Do not write tests that rely on if-statements or conditionals. Do not create helper methods which do more than one thing, and rely on branching logic to apply to different but similar situations.
+
+_Tests should be readable and simple. Branching logic makes it harder to reason about tests, and may hide otherwise flaky or ill-defined behaviors._
+
+_Similarly, you should avoid complicated for-loops. Sometimes, for simple repetition, for-loops are ok._
+
+### Avoid spamming the console
+
+It is ok to include logging while you are developing a test, but that logging should be removed if it is not needed to debug (potential) errors.
+
+For example, stubbing a wallet method will result in dumping a hex string (the calldata) to the log. Instead, suppress logging from methods which you know will flood the log.
+
+```javascript
+cy.stub(hardhat.wallet, 'sendTransaction')
+  .log(false) // <-- suppresses logs from this stub
+  .rejects(new Error('user cancelled'))
+```
+
+_Unnecessary logs it makes it harder to reason about a test overall._
+
+### Name helper methods using transitive verbs
+
+Name helper methods using "action verbs": `expectsThisToHappen`, not `expectThisToHappen`; `selectsToken(token: string)`, not `selectAToken(token: string)`.
+
+_This makes your tests read more naturally, and makes it easier to follow given existing `should` syntax._

cypress/e2e/add-liquidity.test.ts

@@ -9,36 +9,29 @@ describe('Add Liquidity', () => {
     })
   })
 
-  it('loads the two correct tokens', () => {
-    cy.visit('/add/0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984/0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6/500')
+  it('loads the token pair', () => {
+    cy.visit('/add/0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984/ETH/500')
     cy.get('#add-liquidity-input-tokena .token-symbol-container').should('contain.text', 'UNI')
     cy.get('#add-liquidity-input-tokenb .token-symbol-container').should('contain.text', 'ETH')
+    cy.contains('0.05% fee tier')
   })
 
-  it('does not crash if ETH is duplicated', () => {
-    cy.visit('/add/0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6/0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6')
-    cy.get('#add-liquidity-input-tokena .token-symbol-container').should('contain.text', 'ETH')
-    cy.get('#add-liquidity-input-tokenb .token-symbol-container').should('not.contain.text', 'ETH')
+  it('does not crash if token is duplicated', () => {
+    cy.visit('/add/0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984/0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984')
+    cy.get('#add-liquidity-input-tokena .token-symbol-container').should('contain.text', 'UNI')
+    cy.get('#add-liquidity-input-tokenb .token-symbol-container').should('not.contain.text', 'UNI')
   })
 
-  it.skip('token not in storage is loaded', () => {
-    cy.visit('/add/0x07865c6e87b9f70255377e024ace6630c1eaa37f/0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984')
-    cy.get('#add-liquidity-input-tokena .token-symbol-container').should('contain.text', 'USDC')
-    cy.get('#add-liquidity-input-tokenb .token-symbol-container').should('contain.text', 'UNI')
-  })
-
-  it.skip('single token can be selected', () => {
-    cy.visit('/add/0x07865c6e87b9f70255377e024ace6630c1eaa37f')
-    cy.get('#add-liquidity-input-tokena .token-symbol-container').should('contain.text', 'USDC')
+  it('single token can be selected', () => {
     cy.visit('/add/0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984')
     cy.get('#add-liquidity-input-tokena .token-symbol-container').should('contain.text', 'UNI')
   })
 
-  it.skip('loads fee tier distribution', () => {
+  it('loads fee tier distribution', () => {
     cy.fixture('feeTierDistribution.json').then((feeTierDistribution) => {
       cy.intercept('POST', '/subgraphs/name/uniswap/uniswap-v3', (req: CyHttpMessages.IncomingHttpRequest) => {
-        if (hasQuery(req, 'FeeTierDistributionQuery')) {
-          req.alias = 'FeeTierDistributionQuery'
+        if (hasQuery(req, 'FeeTierDistribution')) {
+          req.alias = 'FeeTierDistribution'
 
           req.reply({
             body: {
@@ -53,12 +46,57 @@ describe('Add Liquidity', () => {
         }
       })
 
-      cy.visit('/add/0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984/0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6')
-
-      cy.wait('@FeeTierDistributionQuery')
-
+      cy.visit('/add/0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984/ETH')
+      cy.wait('@FeeTierDistribution')
       cy.get('#add-liquidity-selected-fee .selected-fee-label').should('contain.text', '0.3% fee tier')
-      cy.get('#add-liquidity-selected-fee .selected-fee-percentage').should('contain.text', '40%')
+      cy.get('#add-liquidity-selected-fee .selected-fee-percentage').should('contain.text', '40% select')
+    })
+  })
+
+  it('disables increment and decrement until initial prices are inputted', () => {
+    // ETH / BITCOIN pool (0.05% tier not created)
+    cy.visit('/add/ETH/0x72e4f9F808C49A2a61dE9C5896298920Dc4EEEa9/500')
+    // Set starting price in order to enable price range step counters
+    cy.get('.start-price-input').type('1000')
+
+    // Min Price increment / decrement buttons should be disabled
+    cy.get('[data-testid="increment-price-range"]').eq(0).should('be.disabled')
+    cy.get('[data-testid="decrement-price-range"]').eq(0).should('be.disabled')
+    // Enter min price, which should enable the buttons
+    cy.get('.rate-input-0').eq(0).type('900').blur()
+    cy.get('[data-testid="increment-price-range"]').eq(0).should('not.be.disabled')
+    cy.get('[data-testid="decrement-price-range"]').eq(0).should('not.be.disabled')
+
+    // Repeat for Max Price step counter
+    cy.get('[data-testid="increment-price-range"]').eq(1).should('be.disabled')
+    cy.get('[data-testid="decrement-price-range"]').eq(1).should('be.disabled')
+    // Enter max price, which should enable the buttons
+    cy.get('.rate-input-0').eq(1).type('1100').blur()
+    cy.get('[data-testid="increment-price-range"]').eq(1).should('not.be.disabled')
+    cy.get('[data-testid="decrement-price-range"]').eq(1).should('not.be.disabled')
+  })
+
+  it('allows full range selection on new pool creation', () => {
+    // ETH / BITCOIN pool (0.05% tier not created)
+    cy.visit('/add/ETH/0x72e4f9F808C49A2a61dE9C5896298920Dc4EEEa9/500')
+    // Set starting price in order to enable price range step counters
+    cy.get('.start-price-input').type('1000')
+    cy.get('[data-testid="set-full-range"]').click()
+    // Check that the min price is 0 and the max price is infinity
+    cy.get('.rate-input-0').eq(0).should('have.value', '0')
+    cy.get('.rate-input-0').eq(1).should('have.value', '∞')
+    // Increment and decrement buttons are disabled when full range is selected
+    cy.get('[data-testid="increment-price-range"]').eq(0).should('be.disabled')
+    cy.get('[data-testid="decrement-price-range"]').eq(0).should('be.disabled')
+    cy.get('[data-testid="increment-price-range"]').eq(1).should('be.disabled')
+    cy.get('[data-testid="decrement-price-range"]').eq(1).should('be.disabled')
+    // Check that url params were added
+    cy.url().then((url) => {
+      const params = new URLSearchParams(url)
+      const minPrice = params.get('minPrice')
+      const maxPrice = params.get('maxPrice')
+      // Note: although 0 and ∞ displayed, actual values in query are ticks at limit
+      return minPrice && maxPrice && parseFloat(minPrice) < parseFloat(maxPrice)
     })
   })
 })

cypress/e2e/buy-crypto-modal.test.ts

@@ -1,8 +1,9 @@
+import { FeatureFlag } from '../../src/featureFlags'
 import { getTestSelector } from '../utils'
 
 describe('Buy Crypto Modal', () => {
   it('should open and close', () => {
-    cy.visit('/')
+    cy.visit('/', { featureFlags: [FeatureFlag.fiatOnRampButtonOnSwap] })
 
     // Open the fiat onramp modal
     cy.get(getTestSelector('buy-fiat-button')).click()
@@ -15,7 +16,7 @@ describe('Buy Crypto Modal', () => {
 
   it('should open and close, mobile viewport', () => {
     cy.viewport('iphone-6')
-    cy.visit('/')
+    cy.visit('/', { featureFlags: [FeatureFlag.fiatOnRampButtonOnSwap] })
 
     // Open the fiat onramp modal
     cy.get(getTestSelector('buy-fiat-button')).click()

cypress/e2e/landing.test.ts

@@ -1,9 +1,9 @@
 import { getTestSelector } from '../utils'
-import { CONNECTED_WALLET_USER_STATE } from '../utils/user-state'
+import { CONNECTED_WALLET_USER_STATE, DISCONNECTED_WALLET_USER_STATE } from '../utils/user-state'
 
 describe('Landing Page', () => {
   it('shows landing page when no user state exists', () => {
-    cy.visit('/', { userState: {} })
+    cy.visit('/', { userState: DISCONNECTED_WALLET_USER_STATE })
     cy.get(getTestSelector('landing-page'))
     cy.screenshot()
   })
@@ -21,6 +21,7 @@ describe('Landing Page', () => {
   })
 
   it('shows landing page when the unicorn icon in nav is selected', () => {
+    cy.visit('/swap')
     cy.get(getTestSelector('uniswap-logo')).click()
     cy.get(getTestSelector('landing-page'))
   })

cypress/e2e/link.test.ts

@@ -2,7 +2,7 @@
 describe('Link', () => {
   it('should update route', () => {
     cy.viewport(2000, 1600)
-    cy.visit('/')
+    cy.visit('/swap')
     cy.contains('Pool').click()
     cy.get('[data-cy="join-pool-button"]').should('exist')
   })

cypress/e2e/mini-portfolio/accounts.test.ts

@@ -0,0 +1,112 @@
+import { getTestSelector } from '../../utils'
+
+describe('Mini Portfolio account drawer', () => {
+  beforeEach(() => {
+    cy.intercept(/api.uniswap.org\/v1\/graphql/, cy.spy().as('gqlSpy'))
+    cy.visit('/swap')
+  })
+
+  it('fetches balances when account button is first hovered', () => {
+    // The balances should not be fetched before the account button is hovered
+    cy.get('@gqlSpy').should('not.have.been.called')
+
+    // Balances should have been fetched once after hover
+    cy.get(getTestSelector('web3-status-connected')).trigger('mouseover')
+    cy.get('@gqlSpy').should('have.been.calledOnce')
+
+    // Balances should not be refetched upon second hover
+    cy.get(getTestSelector('web3-status-connected')).trigger('mouseover')
+    cy.get('@gqlSpy').should('have.been.calledOnce')
+
+    // Balances should not be refetched upon opening drawer
+    cy.get(getTestSelector('web3-status-connected')).click()
+    cy.get('@gqlSpy').should('have.been.calledOnce')
+
+    // Balances should not be refetched upon closing & reopening drawer
+    cy.get(getTestSelector('close-account-drawer')).click()
+    cy.get(getTestSelector('web3-status-connected')).click()
+    cy.get('@gqlSpy').should('have.been.calledOnce')
+  })
+
+  it('fetches account information', () => {
+    // Open the mini portfolio
+    cy.intercept(/graphql/, { fixture: 'mini-portfolio/tokens.json' })
+    cy.get(getTestSelector('web3-status-connected')).click()
+
+    // Verify that wallet state loads correctly
+    cy.get(getTestSelector('mini-portfolio-navbar')).contains('Tokens')
+    cy.get(getTestSelector('mini-portfolio-page')).contains('Hidden (201)')
+
+    cy.intercept(/graphql/, { fixture: 'mini-portfolio/nfts.json' })
+    cy.get(getTestSelector('mini-portfolio-navbar')).contains('NFTs').click()
+    cy.get(getTestSelector('mini-portfolio-page')).contains('I Got Plenty')
+
+    cy.intercept(/graphql/, { fixture: 'mini-portfolio/pools.json' })
+    cy.get(getTestSelector('mini-portfolio-navbar')).contains('Pools').click()
+    cy.get(getTestSelector('mini-portfolio-page')).contains('No pools yet')
+
+    cy.intercept(/graphql/, { fixture: 'mini-portfolio/activity.json' })
+    cy.get(getTestSelector('mini-portfolio-navbar')).contains('Activity').click()
+    cy.get(getTestSelector('mini-portfolio-page')).contains('Contract Interaction')
+  })
+
+  it('refetches balances when account changes', () => {
+    cy.hardhat().then((hardhat) => {
+      const accountA = hardhat.wallets[0].address
+      const accountB = hardhat.wallets[1].address
+
+      // Opens the account drawer
+      cy.get(getTestSelector('web3-status-connected')).click()
+
+      // A shortened version of the first account's address should be shown
+      cy.contains(accountA.slice(0, 6)).should('exist')
+
+      // Stores the current portfolio balance to later compare to next account's balance
+      cy.get(getTestSelector('portfolio-total-balance'))
+        .invoke('text')
+        .then((originalBalance) => {
+          // TODO(INFRA-3) Replace window.ethereum access below with cypress-hardhat utility
+          // Simulates the wallet changing accounts via eip-1193 event
+          cy.window().then((win) => win.ethereum.emit('accountsChanged', [accountB]))
+
+          // The second account's address should now be shown
+          cy.contains(accountB.slice(0, 6)).should('exist')
+
+          // The second account's portfolio balance should differ from the original balance
+          cy.get(getTestSelector('portfolio-total-balance')).should('not.have.text', originalBalance)
+        })
+    })
+  })
+
+  it('fetches ENS name', () => {
+    cy.hardhat().then(() => {
+      const haydenAccount = '0x50EC05ADe8280758E2077fcBC08D878D4aef79C3'
+      const haydenENS = 'hayden.eth'
+
+      // Opens the account drawer
+      cy.get(getTestSelector('web3-status-connected')).click()
+
+      // Simulate wallet changing to Hayden's account
+      cy.window().then((win) => win.ethereum.emit('accountsChanged', [haydenAccount]))
+
+      // Hayden's ENS name should be shown
+      cy.contains(haydenENS).should('exist')
+
+      // Close account drawer
+      cy.get(getTestSelector('close-account-drawer')).click()
+
+      // Switch chain to Polygon
+      cy.get(getTestSelector('chain-selector')).eq(1).click()
+      cy.contains('Polygon').click()
+
+      //Reopen account drawer
+      cy.get(getTestSelector('web3-status-connected')).click()
+
+      // Simulate wallet changing to Hayden's account
+      cy.window().then((win) => win.ethereum.emit('accountsChanged', [haydenAccount]))
+
+      // Hayden's ENS name should be shown
+      cy.contains(haydenENS).should('exist')
+    })
+  })
+})

cypress/e2e/mini-portfolio/activity-history.test.ts

@@ -1,3 +1,4 @@
+import { USDC_MAINNET } from '../../../src/constants/tokens'
 import { getTestSelector } from '../../utils'
 
 describe('mini-portfolio activity history', () => {
@@ -93,30 +94,19 @@ describe('mini-portfolio activity history', () => {
   })
 
   it('should deduplicate activity history by nonce', () => {
-    cy.visit('/swap', { ethereum: 'hardhat' }).hardhat({ automine: false })
+    cy.visit(`/swap?inputCurrency=ETH&outputCurrency=${USDC_MAINNET.address}`).hardhat({ automine: false })
 
     // Input swap info.
-    cy.get('#swap-currency-input .token-amount-input').clear().type('1')
-    cy.get('#swap-currency-output .open-currency-select-button').click()
-    cy.contains('USDC').click()
-    cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
+    cy.get('#swap-currency-input .token-amount-input').clear().type('1').should('have.value', '1')
+    cy.get('#swap-currency-output .token-amount-input').should('not.have.value', '')
 
-    // Set slippage to a high value.
-    cy.get(getTestSelector('open-settings-dialog-button')).click()
-    cy.get(getTestSelector('max-slippage-settings')).click()
-    cy.get(getTestSelector('slippage-input')).clear().type('5')
-    cy.get('body').click('topRight')
-    cy.get(getTestSelector('slippage-input')).should('not.exist')
-
-    // Click swap button.
-    cy.contains('1 USDC = ').should('exist')
-    cy.get('#swap-button').should('not.be', 'disabled').click()
+    cy.get('#swap-button').click()
     cy.get('#confirm-swap-or-send').click()
-    cy.get(getTestSelector('dismiss-tx-confirmation')).click()
+    cy.get(getTestSelector('confirmation-close-icon')).click()
 
     // Check activity history tab.
     cy.get(getTestSelector('web3-status-connected')).click()
-    cy.get(getTestSelector('mini-portfolio-nav-activity')).click()
+    cy.get(getTestSelector('mini-portfolio-navbar')).contains('Activity').click()
 
     // Assert that the local pending transaction is replaced by a remote transaction with the same nonce.
     cy.contains('Swapping').should('not.exist')

cypress/e2e/nfts.test.ts

@@ -1,14 +1,10 @@
 import { getTestSelector } from '../utils'
 
 const PUDGY_COLLECTION_ADDRESS = '0xbd3531da5cf5857e7cfaa92426877b022e612cf8'
-const BONSAI_COLLECTION_ADDRESS = '0xec9c519d49856fd2f8133a0741b4dbe002ce211b'
 
 describe('Testing nfts', () => {
-  beforeEach(() => {
-    cy.visit('/')
-  })
-
   it('should load nft leaderboard', () => {
+    cy.visit('/')
     cy.get(getTestSelector('nft-nav')).first().click()
     cy.get(getTestSelector('nft-nav')).first().should('exist')
     cy.get(getTestSelector('nft-nav')).first().click()
@@ -16,7 +12,7 @@ describe('Testing nfts', () => {
   })
 
   it('should load pudgy penguin collection page', () => {
-    cy.visit(`/#/nfts/collection/${PUDGY_COLLECTION_ADDRESS}`)
+    cy.visit(`/nfts/collection/${PUDGY_COLLECTION_ADDRESS}`)
     cy.get(getTestSelector('nft-collection-asset')).should('exist')
     cy.get(getTestSelector('nft-collection-filter-buy-now')).should('not.exist')
     cy.get(getTestSelector('nft-filter')).first().click()
@@ -24,13 +20,13 @@ describe('Testing nfts', () => {
   })
 
   it('should be able to navigate to activity', () => {
-    cy.visit(`/#/nfts/collection/${PUDGY_COLLECTION_ADDRESS}`)
+    cy.visit(`/nfts/collection/${PUDGY_COLLECTION_ADDRESS}`)
     cy.get(getTestSelector('nft-activity')).first().click()
     cy.get(getTestSelector('nft-activity-row')).should('exist')
   })
 
   it('should go to the details page', () => {
-    cy.visit(`/#/nfts/collection/${PUDGY_COLLECTION_ADDRESS}`)
+    cy.visit(`/nfts/collection/${PUDGY_COLLECTION_ADDRESS}`)
     cy.get(getTestSelector('nft-filter')).first().click()
     cy.get(getTestSelector('nft-collection-filter-buy-now')).click()
     cy.get(getTestSelector('nft-collection-asset')).first().click()
@@ -41,7 +37,10 @@ describe('Testing nfts', () => {
   })
 
   it('should toggle buy now on details page', () => {
-    cy.visit(`#/nfts/asset/${BONSAI_COLLECTION_ADDRESS}/7580`)
+    cy.visit(`/nfts/collection/${PUDGY_COLLECTION_ADDRESS}`)
+    cy.get(getTestSelector('nft-filter')).first().click()
+    cy.get(getTestSelector('nft-collection-filter-buy-now')).click()
+    cy.get(getTestSelector('nft-collection-asset')).first().click()
     cy.get(getTestSelector('nft-details-description-text')).should('exist')
     cy.get(getTestSelector('nft-details-description')).click()
     cy.get(getTestSelector('nft-details-description-text')).should('not.exist')
@@ -49,15 +48,11 @@ describe('Testing nfts', () => {
     cy.get(getTestSelector('nft-bag')).should('exist')
   })
 
-  it('should navigate to the owned nfts page', () => {
+  it('should navigate to and from the owned nfts page', () => {
+    cy.visit('/')
     cy.get(getTestSelector('web3-status-connected')).click()
-    cy.get(getTestSelector('nft-view-self-nfts')).click()
-  })
-
-  it('should close the sidebar when navigating to NFT details', () => {
-    cy.get(getTestSelector('web3-status-connected')).click()
-    cy.get(getTestSelector('mini-portfolio-nav-nfts')).click()
+    cy.get(getTestSelector('mini-portfolio-navbar')).contains('NFTs').click()
     cy.get(getTestSelector('mini-portfolio-nft')).first().click()
-    cy.contains('Buy crypto').should('not.be.visible')
+    cy.get(getTestSelector('mini-portfolio-navbar')).should('not.be.visible')
   })
 })

cypress/e2e/permit2.test.ts

@@ -1,223 +1,257 @@
+import { BigNumber } from '@ethersproject/bignumber'
 import { MaxUint160, MaxUint256 } from '@uniswap/permit2-sdk'
+import { CurrencyAmount, Token } from '@uniswap/sdk-core'
 
-import { DAI, USDC_MAINNET } from '../../src/constants/tokens'
+import { DAI, USDC_MAINNET, USDT } from '../../src/constants/tokens'
 import { getTestSelector } from '../utils'
 
-const APPROVE_BUTTON = '[data-testid="swap-approve-button"]'
-
-/** Initiates a swap and confirms its success. */
-function swaps() {
-  // The swap-button can be temporarily disabled following approval, & Cypress will retry clicking the disabled version.
-  // This ensures that we don't click until the button is enabled.
-  cy.get('#swap-button').should('not.have.attr', 'disabled')
-
+/** Initiates a swap. */
+function initiateSwap() {
+  // The swap button is re-rendered once enabled, so we must wait until the original button is not disabled to re-select the appropriate button.
+  cy.get('#swap-button').should('not.be.disabled')
   // Completes the swap.
   cy.get('#swap-button').click()
-  cy.get('#confirm-swap-or-send').click()
-  cy.get(getTestSelector('dismiss-tx-confirmation')).click()
-
-  // Verifies that there is a successful swap notification.
-  cy.contains('Swapped').should('exist')
+  cy.contains('Confirm swap').click()
 }
 
-// TODO(WEB-3299): Update tests to differentiate between permit2 vs token approval button text once UI is updated to indicate approval step.
 describe('Permit2', () => {
-  // The same tokens & swap-amount combination is used for all permit2 tests.
-  const INPUT_TOKEN = DAI
-  const OUTPUT_TOKEN = USDC_MAINNET
-  const TEST_BALANCE_INCREMENT = 0.01
-
-  beforeEach(() => {
-    // Sets up a swap between INPUT_TOKEN and OUTPUT_TOKEN.
-    cy.visit(`/swap/?inputCurrency=${INPUT_TOKEN.address}&outputCurrency=${OUTPUT_TOKEN.address}`, {
-      ethereum: 'hardhat',
-    })
-    cy.get('#swap-currency-input .token-amount-input').clear().type(TEST_BALANCE_INCREMENT.toString())
-  })
+  function setupInputs(inputToken: Token, outputToken: Token) {
+    // Sets up a swap between inputToken and outputToken.
+    cy.visit(`/swap/?inputCurrency=${inputToken.address}&outputCurrency=${outputToken.address}`)
+    cy.get('#swap-currency-input .token-amount-input').type('0.01')
+  }
 
   /** Asserts permit2 has a max approval for spend of the input token on-chain. */
-  function expectTokenAllowanceForPermit2ToBeMax() {
+  function expectTokenAllowanceForPermit2ToBeMax(inputToken: Token) {
     // check token approval
-    return cy
-      .hardhat()
-      .then(({ approval, wallet }) => approval.getTokenAllowanceForPermit2({ owner: wallet, token: INPUT_TOKEN }))
-      .should('deep.equal', MaxUint256)
+    cy.hardhat()
+      .then(({ approval, wallet }) => approval.getTokenAllowanceForPermit2({ owner: wallet, token: inputToken }))
+      .then((allowance) => {
+        Cypress.log({ name: `Token allowance: ${allowance.toString()}` })
+        cy.wrap(allowance).should('deep.equal', MaxUint256)
+      })
   }
 
   /** Asserts the universal router has a max permit2 approval for spend of the input token on-chain. */
-  function expectPermit2AllowanceForUniversalRouterToBeMax(approvalTime: number) {
-    return cy
-      .hardhat()
-      .then((hardhat) => hardhat.approval.getPermit2Allowance({ owner: hardhat.wallet, token: INPUT_TOKEN }))
+  function expectPermit2AllowanceForUniversalRouterToBeMax(inputToken: Token) {
+    cy.hardhat()
+      .then(({ approval, wallet }) => approval.getPermit2Allowance({ owner: wallet, token: inputToken }))
       .then((allowance) => {
-        cy.wrap(MaxUint160.eq(allowance.amount)).should('eq', true)
+        Cypress.log({ name: `Permit2 allowance: ${allowance.amount.toString()}` })
+        cy.wrap(allowance.amount).should('deep.equal', MaxUint160)
         // Asserts that the on-chain expiration is in 30 days, within a tolerance of 40 seconds.
-        const expected = Math.floor((approvalTime + 2_592_000_000) / 1000)
+        const THIRTY_DAYS_SECONDS = 2_592_000
+        const expected = Math.floor(Date.now() / 1000 + THIRTY_DAYS_SECONDS)
         cy.wrap(allowance.expiration).should('be.closeTo', expected, 40)
       })
   }
 
-  it('swaps when user has already approved token and permit2', () => {
-    cy.hardhat()
-      .then(({ approval, wallet }) => {
-        approval.setTokenAllowanceForPermit2({ owner: wallet, token: INPUT_TOKEN })
-        approval.setPermit2Allowance({ owner: wallet, token: INPUT_TOKEN })
+  beforeEach(() =>
+    cy.hardhat().then(async (hardhat) => {
+      await hardhat.fund(hardhat.wallet, CurrencyAmount.fromRawAmount(DAI, 1e18))
+      await hardhat.mine()
+    })
+  )
+
+  describe('approval process (with intermediate screens)', () => {
+    // Turn off automine so that intermediate screens are available to assert on.
+    beforeEach(() => cy.hardhat({ automine: false }))
+
+    it('swaps after completing full permit2 approval process', () => {
+      setupInputs(DAI, USDC_MAINNET)
+      initiateSwap()
+
+      // verify that the modal retains its state when the window loses focus
+      cy.window().trigger('blur')
+
+      // Verify token approval
+      cy.contains('Enable spending DAI on Uniswap')
+      cy.wait('@eth_sendRawTransaction')
+      cy.hardhat().then((hardhat) => hardhat.mine())
+      cy.get(getTestSelector('popups')).contains('Approved')
+      expectTokenAllowanceForPermit2ToBeMax(DAI)
+
+      // Verify permit2 approval
+      cy.contains('Allow DAI to be used for swapping')
+      cy.wait('@eth_signTypedData_v4')
+      cy.wait('@eth_sendRawTransaction')
+      cy.contains('Swap submitted')
+      cy.hardhat().then((hardhat) => hardhat.mine())
+      cy.contains('Swap success!')
+      cy.get(getTestSelector('popups')).contains('Swapped')
+      expectPermit2AllowanceForUniversalRouterToBeMax(DAI)
+    })
+
+    it('swaps with existing permit approval and missing token approval', () => {
+      setupInputs(DAI, USDC_MAINNET)
+      cy.hardhat().then(async (hardhat) => {
+        await hardhat.approval.setPermit2Allowance({ owner: hardhat.wallet, token: DAI })
+        await hardhat.mine()
       })
-      .then(swaps)
-  })
+      initiateSwap()
 
-  it('swaps after completing full permit2 approval process', () => {
-    cy.get(APPROVE_BUTTON)
-      .click()
-      .then(() => {
-        const approvalTime = Date.now()
-        cy.get(APPROVE_BUTTON).should('have.text', 'Approval pending')
+      // Verify token approval
+      cy.contains('Enable spending DAI on Uniswap')
+      cy.wait('@eth_sendRawTransaction')
+      cy.hardhat().then((hardhat) => hardhat.mine())
+      cy.get(getTestSelector('popups')).contains('Approved')
+      expectTokenAllowanceForPermit2ToBeMax(DAI)
 
-        // There should be a successful Approved notification.
-        cy.contains('Approved').should('exist')
+      // Verify transaction
+      cy.wait('@eth_sendRawTransaction')
+      cy.hardhat().then((hardhat) => hardhat.mine())
+      cy.contains('Swap success!')
+      cy.get(getTestSelector('popups')).contains('Swapped')
+    })
 
-        swaps()
-
-        expectTokenAllowanceForPermit2ToBeMax()
-        expectPermit2AllowanceForUniversalRouterToBeMax(approvalTime)
+    /**
+     * On mainnet, you have to revoke USDT approval before increasing it.
+     * From the token contract:
+     *   To change the approve amount you first have to reduce the addresses`
+     *   allowance to zero by calling `approve(_spender, 0)` if it is not
+     *   already 0 to mitigate the race condition described here:
+     *   https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
+     */
+    it('swaps USDT with existing permit, and existing but insufficient token approval', () => {
+      cy.hardhat().then(async (hardhat) => {
+        await hardhat.fund(hardhat.wallet, CurrencyAmount.fromRawAmount(USDT, 2e6))
+        await hardhat.mine()
+        await hardhat.approval.setTokenAllowanceForPermit2({ owner: hardhat.wallet, token: USDT }, 1e6)
+        await hardhat.mine()
+        await hardhat.approval.setPermit2Allowance({ owner: hardhat.wallet, token: USDT })
+        await hardhat.mine()
       })
-  })
+      setupInputs(USDT, USDC_MAINNET)
+      cy.get('#swap-currency-input .token-amount-input').clear().type('2')
+      initiateSwap()
 
-  it('swaps after handling user rejection of approvals and signatures', () => {
-    const USER_REJECTION = { code: 4001 }
-    cy.hardhat().then((hardhat) => {
-      const tokenApprovalStub = cy.stub(hardhat.wallet, 'sendTransaction')
-      tokenApprovalStub.rejects(USER_REJECTION) // reject token approval
+      // Verify allowance revocation
+      cy.contains('Reset USDT')
+      cy.wait('@eth_sendRawTransaction')
+      cy.hardhat().then((hardhat) => hardhat.mine())
+      cy.hardhat()
+        .then(({ approval, wallet }) => approval.getTokenAllowanceForPermit2({ owner: wallet, token: USDT }))
+        .should('deep.equal', BigNumber.from(0))
 
-      const permitApprovalStub = cy.stub(hardhat.provider, 'send')
-      permitApprovalStub.withArgs('eth_signTypedData_v4').rejects(USER_REJECTION) // reject permit approval
-      permitApprovalStub.callThrough() // allows non-eth_signTypedData_v4 send calls to return non-stubbed values
+      // Verify token approval
+      cy.contains('Enable spending USDT on Uniswap')
+      cy.wait('@eth_sendRawTransaction')
+      cy.hardhat().then((hardhat) => hardhat.mine())
+      cy.get(getTestSelector('popups')).contains('Approved')
+      expectTokenAllowanceForPermit2ToBeMax(USDT)
 
-      // Clicking the approve button should trigger a token approval that will be rejected by the user (tokenApprovalStub).
-      cy.get(APPROVE_BUTTON).click()
-
-      // The swap component should prompt approval again.
-      cy.get(APPROVE_BUTTON)
-        .should('have.text', `Approve use of ${INPUT_TOKEN.symbol}`)
-        .then(() => {
-          tokenApprovalStub.restore() // allow token approval
-
-          // The user is now allowing approval, but the permit2 signature will be rejected by the user (permitApprovalStub).
-          cy.get(APPROVE_BUTTON).click()
-          cy.get(APPROVE_BUTTON)
-            .should('have.text', `Approve use of ${INPUT_TOKEN.symbol}`)
-            .then(() => {
-              permitApprovalStub.restore() // allow permit approval
-
-              // The swap should now be able to proceed, as the permit2 signature will be accepted by the user.
-              cy.get(APPROVE_BUTTON)
-                .click()
-                .then(() => {
-                  const approvalTime = Date.now()
-                  cy.get(APPROVE_BUTTON).should('have.text', 'Approval pending')
-
-                  // There should be a successful Approved notification.
-                  cy.contains('Approved').should('exist')
-
-                  swaps()
-
-                  expectTokenAllowanceForPermit2ToBeMax()
-                  expectPermit2AllowanceForUniversalRouterToBeMax(approvalTime)
-                })
-            })
-        })
+      // Verify transaction
+      cy.wait('@eth_sendRawTransaction')
+      cy.hardhat().then((hardhat) => hardhat.mine())
+      cy.contains('Swap success!')
+      cy.get(getTestSelector('popups')).contains('Swapped')
     })
   })
 
-  it('swaps with existing token approval and missing permit approval', () => {
-    cy.hardhat()
-      .then(({ approval, wallet }) => approval.setTokenAllowanceForPermit2({ owner: wallet, token: INPUT_TOKEN }))
-      .then(() => {
-        cy.get(APPROVE_BUTTON)
-          .click()
-          .then(() => {
-            const approvalTime = Date.now()
+  it('swaps when user has already approved token and permit2', () => {
+    cy.hardhat().then(({ approval, wallet }) =>
+      Promise.all([
+        approval.setTokenAllowanceForPermit2({ owner: wallet, token: DAI }),
+        approval.setPermit2Allowance({ owner: wallet, token: DAI }),
+      ])
+    )
+    setupInputs(DAI, USDC_MAINNET)
+    initiateSwap()
 
-            swaps()
-
-            expectPermit2AllowanceForUniversalRouterToBeMax(approvalTime)
-          })
-      })
+    // Verify transaction
+    cy.contains('Swap success!')
+    cy.get(getTestSelector('popups')).contains('Swapped')
   })
 
-  it('swaps with existing permit approval and missing token approval', () => {
-    cy.hardhat()
-      .then(({ approval, wallet }) => approval.setPermit2Allowance({ owner: wallet, token: INPUT_TOKEN }))
-      .then(() => {
-        cy.get(APPROVE_BUTTON).click()
-        cy.get(APPROVE_BUTTON).should('have.text', 'Approval pending')
+  it('swaps after handling user rejection of both approval and signature', () => {
+    setupInputs(DAI, USDC_MAINNET)
+    const USER_REJECTION = { code: 4001 }
+    cy.hardhat().then((hardhat) => {
+      // Reject token approval
+      const tokenApprovalStub = cy.stub(hardhat.wallet, 'sendTransaction').log(false)
+      tokenApprovalStub.rejects(USER_REJECTION) // rejects token approval
+      initiateSwap()
 
-        // There should be a successful Approved notification.
-        cy.contains('Approved').should('exist')
+      // Verify token approval rejection
+      cy.wrap(tokenApprovalStub).should('be.calledOnce')
+      cy.contains('Review swap')
 
-        swaps()
+      // Allow token approval
+      cy.then(() => tokenApprovalStub.restore())
 
-        expectTokenAllowanceForPermit2ToBeMax()
-      })
-  })
+      // Reject permit2 approval
+      const permitApprovalStub = cy.stub(hardhat.provider, 'send').log(false)
+      permitApprovalStub.withArgs('eth_signTypedData_v4').rejects(USER_REJECTION) // rejects permit approval
+      permitApprovalStub.callThrough() // allows non-eth_signTypedData_v4 send calls to return non-stubbed values
+      cy.contains('Confirm swap').click()
 
-  it('prompts signature when existing permit approval is expired', () => {
-    const expiredAllowance = { expiration: Math.floor((Date.now() - 1) / 1000) }
+      // Verify token approval
+      cy.get(getTestSelector('popups')).contains('Approved')
+      expectTokenAllowanceForPermit2ToBeMax(DAI)
 
-    cy.hardhat()
-      .then(({ approval, wallet }) => {
-        approval.setTokenAllowanceForPermit2({ owner: wallet, token: INPUT_TOKEN })
-        approval.setPermit2Allowance({ owner: wallet, token: INPUT_TOKEN }, expiredAllowance)
-      })
-      .then(() => {
-        cy.get(APPROVE_BUTTON)
-          .click()
-          .then(() => {
-            const approvalTime = Date.now()
+      // Verify permit2 approval rejection
+      cy.wrap(permitApprovalStub).should('be.calledWith', 'eth_signTypedData_v4')
+      cy.contains('Review swap')
 
-            swaps()
+      // Allow permit2 approval
+      cy.then(() => permitApprovalStub.restore())
+      cy.contains('Confirm swap').click()
 
-            expectPermit2AllowanceForUniversalRouterToBeMax(approvalTime)
-          })
-      })
-  })
-
-  it('prompts signature when existing permit approval amount is too low', () => {
-    const smallAllowance = { amount: 1 }
-
-    cy.hardhat()
-      .then(({ approval, wallet }) => {
-        approval.setTokenAllowanceForPermit2({ owner: wallet, token: INPUT_TOKEN })
-        approval.setPermit2Allowance({ owner: wallet, token: INPUT_TOKEN }, smallAllowance)
-      })
-      .then(() => {
-        cy.get(APPROVE_BUTTON)
-          .click()
-          .then(() => {
-            const approvalTime = Date.now()
-
-            swaps()
-
-            expectPermit2AllowanceForUniversalRouterToBeMax(approvalTime)
-          })
-      })
+      // Verify permit2 approval
+      cy.contains('Swap success!')
+      cy.get(getTestSelector('popups')).contains('Swapped')
+      expectPermit2AllowanceForUniversalRouterToBeMax(DAI)
+    })
   })
 
   it('prompts token approval when existing approval amount is too low', () => {
-    cy.hardhat()
-      .then(({ approval, wallet }) => {
-        approval.setPermit2Allowance({ owner: wallet, token: INPUT_TOKEN })
-        approval.setTokenAllowanceForPermit2({ owner: wallet, token: INPUT_TOKEN }, 1)
-      })
-      .then(() => {
-        cy.get(APPROVE_BUTTON).click()
+    setupInputs(DAI, USDC_MAINNET)
+    cy.hardhat().then(({ approval, wallet }) =>
+      Promise.all([
+        approval.setPermit2Allowance({ owner: wallet, token: DAI }),
+        approval.setTokenAllowanceForPermit2({ owner: wallet, token: DAI }, 1),
+      ])
+    )
+    initiateSwap()
 
-        // There should be a successful Approved notification.
-        cy.contains('Approved').should('exist')
+    // Verify token approval
+    cy.get(getTestSelector('popups')).contains('Approved')
+    expectPermit2AllowanceForUniversalRouterToBeMax(DAI)
+  })
 
-        swaps()
+  it('prompts signature when existing permit approval is expired', () => {
+    setupInputs(DAI, USDC_MAINNET)
+    const expiredAllowance = { expiration: Math.floor((Date.now() - 1) / 1000) }
+    cy.hardhat().then(({ approval, wallet }) =>
+      Promise.all([
+        approval.setTokenAllowanceForPermit2({ owner: wallet, token: DAI }),
+        approval.setPermit2Allowance({ owner: wallet, token: DAI }, expiredAllowance),
+      ])
+    )
+    initiateSwap()
 
-        expectTokenAllowanceForPermit2ToBeMax()
-      })
+    // Verify permit2 approval
+    cy.wait('@eth_signTypedData_v4')
+    cy.contains('Swap success!')
+    cy.get(getTestSelector('popups')).contains('Swapped')
+    expectPermit2AllowanceForUniversalRouterToBeMax(DAI)
+  })
+
+  it('prompts signature when existing permit approval amount is too low', () => {
+    setupInputs(DAI, USDC_MAINNET)
+    const smallAllowance = { amount: 1 }
+    cy.hardhat().then(({ approval, wallet }) =>
+      Promise.all([
+        approval.setTokenAllowanceForPermit2({ owner: wallet, token: DAI }),
+        approval.setPermit2Allowance({ owner: wallet, token: DAI }, smallAllowance),
+      ])
+    )
+    initiateSwap()
+
+    // Verify permit2 approval
+    cy.wait('@eth_signTypedData_v4')
+    cy.contains('Swap success!')
+    cy.get(getTestSelector('popups')).contains('Swapped')
+    expectPermit2AllowanceForUniversalRouterToBeMax(DAI)
   })
 })

cypress/e2e/remove-liquidity.test.ts

@@ -1,25 +1,7 @@
 describe('Remove Liquidity', () => {
-  it('eth remove', () => {
+  it('loads the token pair', () => {
     cy.visit('/remove/v2/ETH/0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984')
     cy.get('#remove-liquidity-tokena-symbol').should('contain.text', 'ETH')
     cy.get('#remove-liquidity-tokenb-symbol').should('contain.text', 'UNI')
   })
-
-  it('eth remove swap order', () => {
-    cy.visit('/remove/v2/0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984/ETH')
-    cy.get('#remove-liquidity-tokena-symbol').should('contain.text', 'UNI')
-    cy.get('#remove-liquidity-tokenb-symbol').should('contain.text', 'ETH')
-  })
-
-  it('loads the two correct tokens', () => {
-    cy.visit('/remove/v2/0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6/0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984')
-    cy.get('#remove-liquidity-tokena-symbol').should('contain.text', 'WETH')
-    cy.get('#remove-liquidity-tokenb-symbol').should('contain.text', 'UNI')
-  })
-
-  it('does not crash if ETH is duplicated', () => {
-    cy.visit('/remove/v2/0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6/0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6')
-    cy.get('#remove-liquidity-tokena-symbol').should('contain.text', 'WETH')
-    cy.get('#remove-liquidity-tokenb-symbol').should('contain.text', 'WETH')
-  })
 })

cypress/e2e/service-worker.test.ts

@@ -9,7 +9,7 @@ describe('Service Worker', () => {
         throw new Error(
           '\n' +
             'Service Worker tests must be run on a production-like build\n' +
-            'To test, build with `yarn build:e2e` and serve with `yarn serve`'
+            'To test, build with `yarn build` and serve with `yarn serve`'
         )
       }
     })
@@ -20,66 +20,78 @@ describe('Service Worker', () => {
     }
   })
 
-  function unregister() {
-    return cy.log('unregister service worker').then(async () => {
-      const cacheKeys = await window.caches.keys()
-      const cacheKey = cacheKeys.find((key) => key.match(/precache/))
-      if (cacheKey) {
-        await window.caches.delete(cacheKey)
-      }
-
+  function unregisterServiceWorker() {
+    return cy.log('unregisters service worker').then(async () => {
       const sw = await window.navigator.serviceWorker.getRegistration(Cypress.config().baseUrl ?? undefined)
       await sw?.unregister()
     })
   }
-  before(unregister)
-  after(unregister)
+  before(unregisterServiceWorker)
+  after(unregisterServiceWorker)
 
   beforeEach(() => {
-    cy.intercept({ hostname: 'www.google-analytics.com' }, (req) => {
-      const body = req.body.toString()
-      if (req.query['ep.event_category'] === 'Service Worker' || body.includes('Service%20Worker')) {
-        if (req.query['en'] === 'Not Installed' || body.includes('Not%20Installed')) {
-          req.alias = 'NotInstalled'
-        } else if (req.query['en'] === 'Cache Hit' || body.includes('Cache%20Hit')) {
-          req.alias = 'CacheHit'
-        } else if (req.query['en'] === 'Cache Miss' || body.includes('Cache%20Miss')) {
-          req.alias = 'CacheMiss'
-        }
+    cy.intercept('https://api.uniswap.org/v1/amplitude-proxy', (req) => {
+      const body = JSON.stringify(req.body)
+      const serviceWorkerStatus = body.match(/"service_worker":"(\w+)"/)?.[1]
+      if (serviceWorkerStatus) {
+        req.alias = `ServiceWorker:${serviceWorkerStatus}`
       }
     })
   })
 
-  it('installs a ServiceWorker', () => {
+  it('installs a ServiceWorker and reports the uninstalled status to analytics', () => {
     cy.visit('/', { serviceWorker: true })
-      .get('#swap-page')
-      // This is emitted after caching the entry file, which takes some time to load.
-      .wait('@NotInstalled', { timeout: 60000 })
-      .window()
-      .and((win) => {
-        expect(win.navigator.serviceWorker.controller?.state).to.equal('activated')
-      })
+    cy.wait('@ServiceWorker:uninstalled')
+    cy.window().should(
+      'have.nested.property',
+      // The parent is checked instead of the AUT because it is on the same origin,
+      // and the AUT will not be considered "activated" until the parent is idle.
+      'parent.navigator.serviceWorker.controller.state',
+      'activated'
+    )
   })
 
-  it('records a cache hit', () => {
-    cy.visit('/', { serviceWorker: true }).get('#swap-page').wait('@CacheHit', { timeout: 20000 })
-  })
-
-  it('records a cache miss', () => {
-    cy.then(async () => {
-      const cacheKeys = await window.caches.keys()
-      const cacheKey = cacheKeys.find((key) => key.match(/precache/))
-      assert(cacheKey)
-
-      const cache = await window.caches.open(cacheKey)
-      const keys = await cache.keys()
-      const key = keys.find((key) => key.url.match(/index/))
-      assert(key)
-
-      await cache.put(key, new Response())
+  describe('cache hit', () => {
+    it('reports the hit to analytics', () => {
+      cy.visit('/', { serviceWorker: true })
+      cy.wait('@ServiceWorker:hit')
+    })
+  })
+
+  describe('cache miss', () => {
+    let cache: Cache | undefined
+    let request: Request | undefined
+    let response: Response | undefined
+    before(() => {
+      // Mocks the index.html in the cache to force a cache miss.
+      cy.visit('/', { serviceWorker: true }).then(async () => {
+        const cacheKeys = await window.caches.keys()
+        const cacheKey = cacheKeys.find((key) => key.match(/precache/))
+        assert(cacheKey)
+
+        cache = await window.caches.open(cacheKey)
+        const keys = await cache.keys()
+        request = keys.find((key) => key.url.match(/index/))
+        assert(request)
+
+        response = await cache.match(request)
+        assert(response)
+
+        await cache.put(request, new Response())
+      })
+    })
+    after(() => {
+      // Restores the index.html in the cache so that re-runs behave as expected.
+      // This is necessary because the Service Worker will not re-populate the cache.
+      cy.then(async () => {
+        if (cache && request && response) {
+          await cache.put(request, response)
+        }
+      })
+    })
+    it('reports the miss to analytics', () => {
+      cy.visit('/', { serviceWorker: true })
+      cy.wait('@ServiceWorker:miss')
     })
-      .visit('/', { serviceWorker: true })
-      .get('#swap-page')
-      .wait('@CacheMiss', { timeout: 20000 })
   })
 })

cypress/e2e/swap/errors.test.ts

@@ -1,89 +1,119 @@
 import { BigNumber } from '@ethersproject/bignumber'
-import { parseEther } from '@ethersproject/units'
+import { CurrencyAmount } from '@uniswap/sdk-core'
 
-import { USDC_MAINNET } from '../../../src/constants/tokens'
-import { getTestSelector } from '../../utils'
+import { DEFAULT_DEADLINE_FROM_NOW } from '../../../src/constants/misc'
+import { DAI, USDC_MAINNET } from '../../../src/constants/tokens'
+import { getBalance, getTestSelector } from '../../utils'
 
-describe('Swap', () => {
-  it('should render and dismiss the wallet rejection modal', () => {
-    cy.visit('/swap', { ethereum: 'hardhat' })
-      .hardhat()
-      .then((hardhat) => {
-        cy.stub(hardhat.wallet, 'sendTransaction').log(false).rejects(new Error('user cancelled'))
+describe('Swap errors', () => {
+  it('wallet rejection', () => {
+    cy.visit(`/swap?inputCurrency=ETH&outputCurrency=${USDC_MAINNET.address}`)
+    cy.hardhat().then((hardhat) => {
+      // Stub the wallet to reject any transaction.
+      cy.stub(hardhat.wallet, 'sendTransaction').log(false).rejects(new Error('user cancelled'))
 
-        cy.get('#swap-currency-output .open-currency-select-button').click()
-        cy.get(getTestSelector('token-search-input')).clear().type(USDC_MAINNET.address)
-        cy.contains('USDC').click()
-        cy.get('#swap-currency-output .token-amount-input').clear().type('1')
-        cy.get('#swap-currency-input .token-amount-input').should('not.equal', '')
-        cy.get('#swap-button').click()
-        cy.get('#confirm-swap-or-send').click()
-        cy.contains('Transaction rejected').should('exist')
-        cy.contains('Dismiss').click()
-        cy.contains('Transaction rejected').should('not.exist')
-      })
+      // Enter amount to swap
+      cy.get('#swap-currency-output .token-amount-input').type('1').should('have.value', '1')
+      cy.get('#swap-currency-input .token-amount-input').should('not.have.value', '')
+
+      // Submit transaction
+      cy.get('#swap-button').click()
+      cy.contains('Confirm swap').click()
+      cy.wait('@eth_estimateGas')
+
+      // Verify rejection
+      cy.contains('Review swap')
+      cy.contains('Confirm swap')
+    })
   })
 
-  it.skip('should render an error for slippage failure', () => {
-    cy.visit('/swap', { ethereum: 'hardhat' })
-      .hardhat({ automine: false })
-      .then((hardhat) => {
-        cy.then(() => hardhat.provider.getBalance(hardhat.wallet.address)).then((initialBalance) => {
-          // Gas estimation fails for this transaction (that would normally fail), so we stub it.
-          const send = cy.stub(hardhat.provider, 'send').log(false)
-          send.withArgs('eth_estimateGas').resolves(BigNumber.from(2_000_000))
-          send.callThrough()
+  it('transaction past deadline', () => {
+    cy.visit(`/swap?inputCurrency=ETH&outputCurrency=${USDC_MAINNET.address}`)
+    cy.hardhat({ automine: false })
+    getBalance(USDC_MAINNET).then((initialBalance) => {
+      // Enter amount to swap
+      cy.get('#swap-currency-output .token-amount-input').type('1').should('have.value', '1')
+      cy.get('#swap-currency-input .token-amount-input').should('not.have.value', '')
 
-          // Set slippage to a very low value.
-          cy.get(getTestSelector('open-settings-dialog-button')).click()
-          cy.get(getTestSelector('max-slippage-settings')).click()
-          cy.get(getTestSelector('slippage-input')).clear().type('0.01')
-          cy.get('body').click('topRight')
-          cy.get(getTestSelector('slippage-input')).should('not.exist')
+      // Submit transaction
+      cy.get('#swap-button').click()
+      cy.contains('Confirm swap').click()
+      cy.wait('@eth_estimateGas').wait('@eth_sendRawTransaction').wait('@eth_getTransactionReceipt')
+      cy.contains('Swap submitted')
+      cy.get(getTestSelector('confirmation-close-icon')).click()
+      cy.get(getTestSelector('web3-status-connected')).should('contain', '1 Pending')
 
-          // Open the currency select modal.
-          cy.get('#swap-currency-output .open-currency-select-button').click()
-
-          // Select UNI as output token
-          cy.get(getTestSelector('token-search-input')).clear().type('Uniswap')
-          cy.get(getTestSelector('currency-list-wrapper'))
-            .contains(/^Uniswap$/)
-            .first()
-            // Our scrolling library (react-window) seems to freeze when acted on by cypress, with this element set to
-            // `pointer-events: none`. This can be ignored using `{force: true}`.
-            .click({ force: true })
-
-          // Swap 2 times.
-          const AMOUNT_TO_SWAP = 400
-          const NUMBER_OF_SWAPS = 2
-          const INDIVIDUAL_SWAP_INPUT = AMOUNT_TO_SWAP / NUMBER_OF_SWAPS
-          cy.get('#swap-currency-input .token-amount-input').clear().type(INDIVIDUAL_SWAP_INPUT.toString())
-          cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
-          cy.get('#swap-button').click()
-          cy.get('#confirm-swap-or-send').click()
-          cy.get(getTestSelector('dismiss-tx-confirmation')).click()
-          cy.get('#swap-currency-input .token-amount-input').clear().type(INDIVIDUAL_SWAP_INPUT.toString())
-          cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
-          cy.get('#swap-button').click()
-          cy.get('#confirm-swap-or-send').click()
-          cy.get(getTestSelector('dismiss-tx-confirmation')).click()
-
-          // The pending transaction indicator should be visible.
-          cy.contains('Pending').should('exist')
-
-          cy.then(() => hardhat.mine()).then(() => {
-            // The pending transaction indicator should not be visible.
-            cy.contains('Pending').should('not.exist')
-
-            // Check for a failed transaction notification.
-            cy.contains('Swap failed').should('exist')
-
-            // Assert that at least one of the swaps failed due to slippage.
-            cy.then(() => hardhat.provider.getBalance(hardhat.wallet.address)).then((finalBalance) => {
-              expect(finalBalance.gt(initialBalance.sub(parseEther(AMOUNT_TO_SWAP.toString())))).to.be.true
-            })
-          })
-        })
+      // Mine transaction
+      cy.hardhat().then(async (hardhat) => {
+        // Remove the transaction from the mempool, so that it doesn't fail but it is past the deadline.
+        // This should result in it being removed from pending transactions, without a failure notificiation.
+        const transactions = await hardhat.send('eth_pendingTransactions', [])
+        await hardhat.send('hardhat_dropTransaction', [transactions[0].hash])
+        // Mine past the deadline
+        await hardhat.mine(1, DEFAULT_DEADLINE_FROM_NOW + 1)
       })
+      cy.wait('@eth_getTransactionReceipt')
+
+      // Verify transaction did not occur
+      cy.get(getTestSelector('web3-status-connected')).should('not.contain', 'Pending')
+      cy.get(getTestSelector('popups')).should('not.contain', 'Swap failed')
+      cy.get('#swap-currency-output').contains(`Balance: ${initialBalance}`)
+      getBalance(USDC_MAINNET).should('eq', initialBalance)
+    })
+  })
+
+  it('slippage failure', () => {
+    cy.visit(`/swap?inputCurrency=${USDC_MAINNET.address}&outputCurrency=${DAI.address}`)
+    cy.hardhat({ automine: false }).then(async (hardhat) => {
+      await hardhat.fund(hardhat.wallet, CurrencyAmount.fromRawAmount(USDC_MAINNET, 500e6))
+      await hardhat.mine()
+      await Promise.all([
+        hardhat.approval.setTokenAllowanceForPermit2({ owner: hardhat.wallet, token: USDC_MAINNET }),
+        hardhat.approval.setPermit2Allowance({ owner: hardhat.wallet, token: USDC_MAINNET }),
+      ])
+      await hardhat.mine()
+    })
+
+    getBalance(DAI).then((initialBalance) => {
+      // Gas estimation fails for this transaction (that would normally fail), so we stub it.
+      cy.hardhat().then((hardhat) => {
+        const send = cy.stub(hardhat.provider, 'send').log(false)
+        send.withArgs('eth_estimateGas').resolves(BigNumber.from(2_000_000))
+        send.callThrough()
+      })
+
+      // Set slippage to a very low value.
+      cy.get(getTestSelector('open-settings-dialog-button')).click()
+      cy.get(getTestSelector('max-slippage-settings')).click()
+      cy.get(getTestSelector('slippage-input')).clear().type('0.01')
+      cy.get('body').click('topRight') // close modal
+      cy.get(getTestSelector('slippage-input')).should('not.exist')
+
+      // Submit 2 transactions
+      for (let i = 0; i < 2; i++) {
+        cy.get('#swap-currency-input .token-amount-input').type('200').should('have.value', '200')
+        cy.get('#swap-currency-output .token-amount-input').should('not.have.value', '')
+        cy.get('#swap-button').click()
+        cy.contains('Confirm swap').click()
+        cy.wait('@eth_sendRawTransaction').wait('@eth_getTransactionReceipt')
+        cy.contains('Swap submitted')
+        if (i === 0) {
+          cy.get(getTestSelector('confirmation-close-icon')).click()
+        }
+      }
+      cy.get(getTestSelector('web3-status-connected')).should('contain', '2 Pending')
+
+      // Mine transactions
+      cy.hardhat().then((hardhat) => hardhat.mine())
+      cy.wait('@eth_getTransactionReceipt')
+
+      cy.contains('Swap failed')
+
+      // Verify only 1 transaction occurred
+      cy.get(getTestSelector('web3-status-connected')).should('not.contain', 'Pending')
+      cy.get(getTestSelector('popups')).contains('Swapped')
+      cy.get(getTestSelector('popups')).contains('Swap failed')
+      getBalance(DAI).should('be.closeTo', initialBalance + 200, 1)
+    })
   })
 })

cypress/e2e/swap/settings.test.ts

@@ -0,0 +1,29 @@
+import { FeatureFlag } from '../../../src/featureFlags'
+import { getTestSelector } from '../../utils'
+
+describe('Swap settings', () => {
+  it('Opens and closes the settings menu', () => {
+    cy.visit('/swap', { featureFlags: [FeatureFlag.uniswapXEnabled] })
+    cy.contains('Settings').should('not.exist')
+    cy.get(getTestSelector('open-settings-dialog-button')).click()
+    cy.get(getTestSelector('mobile-settings-menu')).should('not.exist')
+    cy.contains('Max slippage').should('exist')
+    cy.contains('Transaction deadline').should('exist')
+    cy.contains('UniswapX').should('exist')
+    cy.contains('Local routing').should('exist')
+    cy.get(getTestSelector('open-settings-dialog-button')).click()
+    cy.contains('Settings').should('not.exist')
+  })
+
+  it('should open the mobile settings menu', () => {
+    cy.viewport('iphone-6')
+    cy.visit('/swap', { featureFlags: [FeatureFlag.uniswapXEnabled] })
+    cy.get(getTestSelector('open-settings-dialog-button')).click()
+    cy.get(getTestSelector('mobile-settings-menu')).should('exist')
+    cy.contains('Max slippage').should('exist')
+    cy.contains('Transaction deadline').should('exist')
+    cy.contains('UniswapX').should('exist')
+    cy.contains('Local routing').should('exist')
+    cy.get(getTestSelector('mobile-settings-scrim')).click()
+  })
+})

cypress/e2e/swap/swap.test.ts

@@ -1,167 +1,89 @@
-import { SupportedChainId } from '@uniswap/sdk-core'
+import { ChainId } from '@uniswap/sdk-core'
 
 import { UNI, USDC_MAINNET } from '../../../src/constants/tokens'
-import { getTestSelector } from '../../utils'
+import { getBalance, getTestSelector } from '../../utils'
 
-const UNI_MAINNET = UNI[SupportedChainId.MAINNET]
+const UNI_MAINNET = UNI[ChainId.MAINNET]
 
 describe('Swap', () => {
   describe('Swap on main page', () => {
-    before(() => {
-      cy.visit('/swap', { ethereum: 'hardhat' })
-    })
-
     it('starts with ETH selected by default', () => {
+      cy.visit('/swap')
       cy.get(`#swap-currency-input .token-amount-input`).should('have.value', '')
       cy.get(`#swap-currency-input .token-symbol-container`).should('contain.text', 'ETH')
       cy.get(`#swap-currency-output .token-amount-input`).should('not.have.value')
       cy.get(`#swap-currency-output .token-symbol-container`).should('contain.text', 'Select token')
     })
 
-    it('can enter an amount into input', () => {
-      cy.get('#swap-currency-input .token-amount-input').clear().type('0.001').should('have.value', '0.001')
-    })
-
-    it('zero swap amount', () => {
-      cy.get('#swap-currency-input .token-amount-input').clear().type('0.0').should('have.value', '0.0')
-    })
-
-    it('invalid swap amount', () => {
-      cy.get('#swap-currency-input .token-amount-input').clear().type('\\').should('have.value', '')
-    })
-
-    it('can enter an amount into output', () => {
-      cy.get('#swap-currency-output .token-amount-input').clear().type('0.001').should('have.value', '0.001')
-    })
-
-    it('zero output amount', () => {
-      cy.get('#swap-currency-output .token-amount-input').clear().type('0.0').should('have.value', '0.0')
-    })
-
-    it('should render an error when a transaction fails due to a passed deadline', () => {
-      const DEADLINE_MINUTES = 1
-      const TEN_MINUTES_MS = 1000 * 60 * DEADLINE_MINUTES * 10
-      cy.visit('/swap', { ethereum: 'hardhat' })
-        .hardhat({ automine: false })
-        .then((hardhat) => {
-          cy.then(() => hardhat.getBalance(hardhat.wallet.address, USDC_MAINNET))
-            .then((balance) => Number(balance.toFixed(1)))
-            .then((initialBalance) => {
-              // Input swap info.
-              cy.get('#swap-currency-output .open-currency-select-button').click()
-              cy.contains('USDC').click()
-              cy.get('#swap-currency-output .token-amount-input').clear().type('1')
-              cy.get('#swap-currency-input .token-amount-input').should('not.equal', '')
-
-              // Set deadline to minimum. (1 minute)
-              cy.get(getTestSelector('open-settings-dialog-button')).click()
-              cy.get(getTestSelector('transaction-deadline-settings')).click()
-              cy.get(getTestSelector('deadline-input')).clear().type(DEADLINE_MINUTES.toString())
-              cy.get('body').click('topRight')
-              cy.get(getTestSelector('deadline-input')).should('not.exist')
-
-              cy.get('#swap-button').click()
-              cy.get('#confirm-swap-or-send').click()
-
-              // Dismiss the modal that appears when a transaction is broadcast to the network.
-              cy.get(getTestSelector('dismiss-tx-confirmation')).click()
-
-              // The UI should show the transaction as pending.
-              cy.contains('1 Pending').should('exist')
-
-              // Mine a block past the deadline.
-              cy.then(() => hardhat.mine(1, TEN_MINUTES_MS)).then(() => {
-                // The UI should no longer show the transaction as pending.
-                cy.contains('1 Pending').should('not.exist')
-
-                // Check that the user is informed of the failure
-                cy.contains('Swap failed').should('exist')
-
-                // Check that the balance is unchanged in the UI
-                cy.get('#swap-currency-output [data-testid="balance-text"]').should(
-                  'have.text',
-                  `Balance: ${initialBalance}`
-                )
-
-                // Check that the balance is unchanged on chain
-                cy.then(() => hardhat.getBalance(hardhat.wallet.address, USDC_MAINNET))
-                  .then((balance) => Number(balance.toFixed(1)))
-                  .should('eq', initialBalance)
-              })
-            })
-        })
-    })
-
     it('should default inputs from URL params ', () => {
-      cy.visit(`/swap?inputCurrency=${UNI_MAINNET.address}`, { ethereum: 'hardhat' })
+      cy.visit(`/swap?inputCurrency=${UNI_MAINNET.address}`)
       cy.get(`#swap-currency-input .token-symbol-container`).should('contain.text', 'UNI')
       cy.get(`#swap-currency-output .token-symbol-container`).should('contain.text', 'Select token')
 
-      cy.visit(`/swap?outputCurrency=${UNI_MAINNET.address}`, { ethereum: 'hardhat' })
+      cy.visit(`/swap?outputCurrency=${UNI_MAINNET.address}`)
       cy.get(`#swap-currency-input .token-symbol-container`).should('contain.text', 'Select token')
       cy.get(`#swap-currency-output .token-symbol-container`).should('contain.text', 'UNI')
 
-      cy.visit(`/swap?inputCurrency=ETH&outputCurrency=${UNI_MAINNET.address}`, { ethereum: 'hardhat' })
+      cy.visit(`/swap?inputCurrency=ETH&outputCurrency=${UNI_MAINNET.address}`)
       cy.get(`#swap-currency-input .token-symbol-container`).should('contain.text', 'ETH')
       cy.get(`#swap-currency-output .token-symbol-container`).should('contain.text', 'UNI')
     })
 
-    it('ETH to wETH is same value (wrapped swaps have no price impact)', () => {
-      cy.visit('/swap')
-      cy.get(`#swap-currency-output .open-currency-select-button`).click()
-      cy.contains('WETH').click()
-      cy.get('#swap-currency-input .token-amount-input').clear().type('0.01')
-      cy.get('#swap-currency-output .token-amount-input').should('have.value', '0.01')
-    })
-
-    it('Opens and closes the settings menu', () => {
-      cy.visit('/swap')
-      cy.contains('Settings').should('not.exist')
-      cy.get(getTestSelector('open-settings-dialog-button')).click()
-      cy.contains('Max slippage').should('exist')
-      cy.contains('Transaction deadline').should('exist')
-      cy.contains('Auto Router API').should('exist')
-      cy.get(getTestSelector('open-settings-dialog-button')).click()
-      cy.contains('Settings').should('not.exist')
-    })
-
     it('inputs reset when navigating between pages', () => {
-      cy.get('#swap-currency-input .token-amount-input').clear().type('0.01')
-      cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
-      cy.visit('/pool')
       cy.visit('/swap')
       cy.get('#swap-currency-input .token-amount-input').should('have.value', '')
-      cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
+      cy.get('#swap-currency-input .token-amount-input').type('0.01').should('have.value', '0.01')
+      cy.visit('/pool').visit('/swap')
+      cy.get('#swap-currency-input .token-amount-input').should('have.value', '')
     })
 
-    it('can swap ETH for USDC', () => {
-      cy.visit('/swap', { ethereum: 'hardhat' })
-      const TOKEN_ADDRESS = USDC_MAINNET.address
-      const BALANCE_INCREMENT = 1
-      cy.hardhat().then((hardhat) => {
-        cy.then(() => hardhat.getBalance(hardhat.wallet.address, USDC_MAINNET))
-          .then((balance) => Number(balance.toFixed(1)))
-          .then((initialBalance) => {
-            cy.get('#swap-currency-output .open-currency-select-button').click()
-            cy.get(getTestSelector('token-search-input')).clear().type(TOKEN_ADDRESS)
-            cy.contains('USDC').click()
-            cy.get('#swap-currency-output .token-amount-input').clear().type(BALANCE_INCREMENT.toString())
-            cy.get('#swap-currency-input .token-amount-input').should('not.equal', '')
-            cy.get('#swap-button').click()
-            cy.get('#confirm-swap-or-send').click()
-            cy.get(getTestSelector('dismiss-tx-confirmation')).click()
+    it('resets the dependent input when the independent input is cleared', () => {
+      cy.visit(`/swap?inputCurrency=ETH&outputCurrency=${UNI_MAINNET.address}`)
+      cy.get('#swap-currency-input .token-amount-input').should('have.value', '')
+      cy.get(`#swap-currency-output .token-amount-input`).should('have.value', '')
 
-            // ui check
-            cy.get('#swap-currency-output [data-testid="balance-text"]').should(
-              'have.text',
-              `Balance: ${initialBalance + BALANCE_INCREMENT}`
-            )
+      cy.get('#swap-currency-input .token-amount-input').type('0.01').should('have.value', '0.01')
+      cy.get(`#swap-currency-output .token-amount-input`).should('not.have.value', '')
+      cy.get('#swap-currency-input .token-amount-input').clear()
+      cy.get(`#swap-currency-output .token-amount-input`).should('not.have.value')
 
-            // chain state check
-            cy.then(() => hardhat.getBalance(hardhat.wallet.address, USDC_MAINNET))
-              .then((balance) => Number(balance.toFixed(1)))
-              .should('eq', initialBalance + BALANCE_INCREMENT)
-          })
+      cy.window().trigger('blur')
+      cy.get(`#swap-currency-output .token-amount-input`).should('not.have.value')
+    })
+
+    it('swaps ETH for USDC', () => {
+      cy.visit('/swap')
+      cy.hardhat({ automine: false })
+      getBalance(USDC_MAINNET).then((initialBalance) => {
+        // Select USDC
+        cy.get('#swap-currency-output .open-currency-select-button').click()
+        cy.get(getTestSelector('token-search-input')).type(USDC_MAINNET.address)
+        cy.get(getTestSelector('common-base-USDC')).click()
+
+        // Enter amount to swap
+        cy.get('#swap-currency-output .token-amount-input').type('1').should('have.value', '1')
+        cy.get('#swap-currency-input .token-amount-input').should('not.have.value', '')
+
+        // Submit transaction
+        cy.get('#swap-button').click()
+        cy.contains('Review swap')
+        cy.contains('Confirm swap').click()
+        cy.wait('@eth_estimateGas').wait('@eth_sendRawTransaction').wait('@eth_getTransactionReceipt')
+        cy.contains('Swap submitted')
+        cy.get(getTestSelector('confirmation-close-icon')).click()
+        cy.contains('Swap submitted').should('not.exist')
+        cy.get(getTestSelector('web3-status-connected')).should('contain', '1 Pending')
+
+        // Mine transaction
+        cy.hardhat().then((hardhat) => hardhat.mine())
+        cy.wait('@eth_getTransactionReceipt')
+
+        // Verify transaction
+        cy.get(getTestSelector('web3-status-connected')).should('not.contain', 'Pending')
+        cy.get(getTestSelector('popups')).contains('Swapped')
+        const finalBalance = initialBalance + 1
+        cy.get('#swap-currency-output').contains(`Balance: ${finalBalance}`)
+        getBalance(USDC_MAINNET).should('eq', finalBalance)
       })
     })
   })

cypress/e2e/swap/timeToSwap.test.ts

@@ -0,0 +1,45 @@
+import { SwapEventName } from '@uniswap/analytics-events'
+
+import { USDC_MAINNET } from '../../../src/constants/tokens'
+import { getTestSelector } from '../../utils'
+
+describe('time-to-swap logging', () => {
+  it('completes two swaps and verifies the TTS logging for the first', () => {
+    cy.visit(`/swap?inputCurrency=ETH&outputCurrency=${USDC_MAINNET.address}`)
+    cy.hardhat()
+
+    // First swap in the session:
+    // Enter amount to swap
+    cy.get('#swap-currency-output .token-amount-input').type('1').should('have.value', '1')
+    cy.get('#swap-currency-input .token-amount-input').should('not.have.value', '')
+
+    // Submit transaction
+    cy.get('#swap-button').click()
+    cy.contains('Confirm swap').click()
+    cy.get(getTestSelector('confirmation-close-icon')).click()
+
+    cy.get(getTestSelector('popups')).contains('Swapped')
+
+    // Verify logging
+    cy.waitForAmplitudeEvent(SwapEventName.SWAP_TRANSACTION_COMPLETED).then((event: any) => {
+      cy.wrap(event.event_properties).should('have.property', 'time_to_swap')
+      cy.wrap(event.event_properties.time_to_swap).should('be.a', 'number')
+      cy.wrap(event.event_properties.time_to_swap).should('be.gte', 0)
+    })
+
+    // Second swap in the session:
+    // Enter amount to swap
+    cy.get('#swap-currency-output .token-amount-input').clear().type('1').should('have.value', '1')
+    cy.get('#swap-currency-input .token-amount-input').should('not.have.value', '')
+
+    // Submit transaction
+    cy.get('#swap-button').click()
+    cy.contains('Confirm swap').click()
+    cy.get(getTestSelector('confirmation-close-icon')).click()
+
+    cy.get(getTestSelector('popups')).contains('Swapped')
+    cy.waitForAmplitudeEvent(SwapEventName.SWAP_TRANSACTION_COMPLETED).then((event: any) => {
+      cy.wrap(event.event_properties).should('not.have.property', 'time_to_swap')
+    })
+  })
+})

cypress/e2e/swap/wrap.test.ts

@@ -1,111 +1,78 @@
-import { SupportedChainId, WETH9 } from '@uniswap/sdk-core'
+import { ChainId, CurrencyAmount, WETH9 } from '@uniswap/sdk-core'
 
-import { getTestSelector } from '../../utils'
+import { getBalance, getTestSelector } from '../../utils'
+
+const WETH = WETH9[ChainId.MAINNET]
+
+describe('Swap wrap', () => {
+  beforeEach(() => {
+    cy.visit(`/swap?inputCurrency=ETH&outputCurrency=${WETH.address}`).hardhat({ automine: false })
+  })
+
+  it('ETH to wETH is same value (wrapped swaps have no price impact)', () => {
+    cy.get('#swap-currency-input .token-amount-input').type('0.01').should('have.value', '0.01')
+    cy.get('#swap-currency-output .token-amount-input').should('have.value', '0.01')
+
+    cy.get('#swap-currency-output .token-amount-input').clear().type('0.02').should('have.value', '0.02')
+    cy.get('#swap-currency-input .token-amount-input').should('have.value', '0.02')
+  })
 
-describe('Swap', () => {
   it('should be able to wrap ETH', () => {
-    const BALANCE_INCREMENT = 1
-    cy.visit('/swap', { ethereum: 'hardhat' })
-      .hardhat()
-      .then((hardhat) => {
-        cy.then(() => hardhat.getBalance(hardhat.wallet.address, WETH9[SupportedChainId.MAINNET]))
-          .then((balance) => Number(balance.toFixed(1)))
-          .then((initialWethBalance) => {
-            // Select WETH for the token output.
-            cy.get('#swap-currency-output .open-currency-select-button').click()
-            cy.contains('WETH').click()
+    getBalance(WETH).then((initialBalance) => {
+      cy.contains('Enter ETH amount')
 
-            // Enter the amount to wrap.
-            cy.get('#swap-currency-output .token-amount-input').clear().type(BALANCE_INCREMENT.toString())
-            cy.get('#swap-currency-input .token-amount-input').should('not.equal', '')
+      // Enter amount to wrap
+      cy.get('#swap-currency-output .token-amount-input').type('1').should('have.value', 1)
+      cy.get('#swap-currency-input .token-amount-input').should('have.value', 1)
 
-            // Click the wrap button.
-            cy.get(getTestSelector('wrap-button')).should('not.be.disabled')
-            cy.get(getTestSelector('wrap-button')).click()
+      // Submit transaction
+      cy.contains('Wrap').click()
+      cy.wait('@eth_estimateGas').wait('@eth_sendRawTransaction').wait('@eth_getTransactionReceipt')
+      cy.get(getTestSelector('web3-status-connected')).should('contain', '1 Pending')
 
-            // The pending transaction indicator should be visible.
-            cy.get(getTestSelector('web3-status-connected')).should('have.descendants', ':contains("1 Pending")')
+      // Mine transaction
+      cy.hardhat().then((hardhat) => hardhat.mine())
+      cy.wait('@eth_getTransactionReceipt')
 
-            // <automine transaction>
-
-            // The pending transaction indicator should be gone.
-            cy.get(getTestSelector('web3-status-connected')).should('not.have.descendants', ':contains("1 Pending")')
-
-            // The UI balance should have increased.
-            cy.get('#swap-currency-output [data-testid="balance-text"]').should(
-              'have.text',
-              `Balance: ${initialWethBalance + BALANCE_INCREMENT}`
-            )
-
-            // There should be a successful wrap notification.
-            cy.contains('Wrapped').should('exist')
-
-            // The user's WETH account balance should have increased
-            cy.then(() => hardhat.getBalance(hardhat.wallet.address, WETH9[SupportedChainId.MAINNET]))
-              .then((balance) => Number(balance.toFixed(1)))
-              .should('eq', initialWethBalance + BALANCE_INCREMENT)
-          })
-      })
+      // Verify transaction
+      cy.get(getTestSelector('web3-status-connected')).should('not.contain', 'Pending')
+      cy.get(getTestSelector('popups')).contains('Wrapped')
+      const finalBalance = initialBalance + 1
+      cy.get('#swap-currency-output').contains(`Balance: ${finalBalance}`)
+      getBalance(WETH).should('equal', finalBalance)
+    })
   })
 
   it('should be able to unwrap WETH', () => {
-    const BALANCE_INCREMENT = 1
-    cy.visit('/swap', { ethereum: 'hardhat' })
-      .hardhat()
-      .then((hardhat) => {
-        cy.then(() => hardhat.getBalance(hardhat.wallet.address, WETH9[SupportedChainId.MAINNET])).then(
-          (initialBalance) => {
-            // Select WETH for the token output.
-            cy.get('#swap-currency-output .open-currency-select-button').click()
-            cy.contains('WETH').click()
+    cy.hardhat().then(async (hardhat) => {
+      await hardhat.fund(hardhat.wallet, CurrencyAmount.fromRawAmount(WETH, 1e18))
+      await hardhat.mine()
+    })
 
-            // Enter the amount to wrap.
-            cy.get('#swap-currency-output .token-amount-input').clear().type(BALANCE_INCREMENT.toString())
-            cy.get('#swap-currency-input .token-amount-input').should('not.equal', '')
+    getBalance(WETH).then((initialBalance) => {
+      // Swap input/output to unwrap WETH
+      cy.get(getTestSelector('swap-currency-button')).click()
+      cy.contains('Enter WETH amount')
 
-            // Click the wrap button.
-            cy.get(getTestSelector('wrap-button')).should('not.be.disabled')
-            cy.get(getTestSelector('wrap-button')).click()
+      // Enter the amount to unwrap
+      cy.get('#swap-currency-output .token-amount-input').type('1').should('have.value', 1)
+      cy.get('#swap-currency-input .token-amount-input').should('have.value', 1)
 
-            // <automine transaction>
+      // Submit transaction
+      cy.contains('Unwrap').click()
+      cy.wait('@eth_estimateGas').wait('@eth_sendRawTransaction').wait('@eth_getTransactionReceipt')
+      cy.get(getTestSelector('web3-status-connected')).should('contain', '1 Pending')
 
-            // The pending transaction indicator should be visible.
-            cy.contains('1 Pending').should('exist')
-            // The user should see a notification telling them they successfully wrapped their ETH.
-            cy.contains('Wrapped').should('exist')
+      // Mine transaction
+      cy.hardhat().then((hardhat) => hardhat.mine())
+      cy.wait('@eth_getTransactionReceipt')
 
-            // Switch to unwrapping the ETH we just wrapped.
-            cy.get(getTestSelector('swap-currency-button')).click()
-            cy.get(getTestSelector('wrap-button')).should('not.be.disabled')
-
-            // Click the Unwrap button.
-            cy.get(getTestSelector('wrap-button')).click()
-
-            // The pending transaction indicator should be visible.
-            cy.contains('1 Pending').should('exist')
-
-            // <automine transaction>
-
-            // The pending transaction indicator should be gone.
-            cy.contains('1 Pending').should('not.exist')
-            // The user should see a notification telling them they successfully unwrapped their ETH.
-            cy.contains('Unwrapped').should('exist')
-
-            // The UI balance should have decreased.
-            cy.get('#swap-currency-input [data-testid="balance-text"]').should(
-              'have.text',
-              `Balance: ${initialBalance.toFixed(0)}`
-            )
-
-            // There should be a successful unwrap notification.
-            cy.contains('Unwrapped').should('exist')
-
-            // The user's WETH account balance should not have changed from the initial balance
-            cy.then(() => hardhat.getBalance(hardhat.wallet.address, WETH9[SupportedChainId.MAINNET]))
-              .then((balance) => balance.toFixed(0))
-              .should('eq', initialBalance.toFixed(0))
-          }
-        )
-      })
+      // Verify transaction
+      cy.get(getTestSelector('web3-status-connected')).should('not.contain', 'Pending')
+      cy.get(getTestSelector('popups')).contains('Unwrapped')
+      const finalBalance = initialBalance - 1
+      cy.get('#swap-currency-input').contains(`Balance: ${finalBalance}`)
+      getBalance(WETH).should('equal', finalBalance)
+    })
   })
 })

cypress/e2e/token-details.test.ts

@@ -1,9 +1,9 @@
-import { SupportedChainId, WETH9 } from '@uniswap/sdk-core'
+import { ChainId, WETH9 } from '@uniswap/sdk-core'
 
-import { UNI } from '../../src/constants/tokens'
+import { ARB, UNI } from '../../src/constants/tokens'
 import { getTestSelector } from '../utils'
 
-const UNI_MAINNET = UNI[SupportedChainId.MAINNET]
+const UNI_MAINNET = UNI[ChainId.MAINNET]
 
 const UNI_ADDRESS = '0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984'
 
@@ -93,9 +93,7 @@ describe('Token details', () => {
     beforeEach(() => {
       // On mobile widths, we just link back to /swap instead of rendering the swap component.
       cy.viewport(1200, 800)
-      cy.visit(`/tokens/ethereum/${UNI_MAINNET.address}`, {
-        ethereum: 'hardhat',
-      }).then(() => {
+      cy.visit(`/tokens/ethereum/${UNI_MAINNET.address}`).then(() => {
         cy.wait('@eth_blockNumber')
         cy.scrollTo('top')
       })
@@ -115,7 +113,7 @@ describe('Token details', () => {
       cy.url().should('not.include', `${UNI_MAINNET.address}`)
     })
 
-    it.only('should not share swap state with the main swap page', () => {
+    it('should not share swap state with the main swap page', () => {
       cy.get(`#swap-currency-output .token-symbol-container`).should('contain.text', 'UNI')
       cy.get(`#swap-currency-input .open-currency-select-button`).click()
       cy.contains('WETH').click()
@@ -145,12 +143,13 @@ describe('Token details', () => {
     })
 
     it('should show a L2 token even if the user is connected to a different network', () => {
-      cy.visit('/tokens', { ethereum: 'hardhat' })
+      cy.visit('/tokens')
       cy.get(getTestSelector('tokens-network-filter-selected')).click()
       cy.get(getTestSelector('tokens-network-filter-option-arbitrum')).click()
       cy.get(getTestSelector('tokens-network-filter-selected')).should('contain', 'Arbitrum')
-      cy.get(getTestSelector('token-table-row-ARB')).click()
+      cy.get(getTestSelector(`token-table-row-${ARB.address.toLowerCase()}`)).click()
       cy.get(`#swap-currency-output .token-symbol-container`).should('contain.text', 'ARB')
+      cy.get(getTestSelector('open-settings-dialog-button')).should('be.disabled')
       cy.contains('Connect to Arbitrum').should('exist')
     })
   })

cypress/e2e/token-explore-filter.test.ts

@@ -1,83 +1,24 @@
-describe.skip('Token explore filter', () => {
-  before(() => {
-    cy.visit('/')
-  })
-
-  it('should filter correctly by uni search term', () => {
+describe('Token explore filter', () => {
+  beforeEach(() => {
     cy.visit('/tokens')
-    cy.get('[data-cy="token-name"]').then(($els) => {
-      const tokenNames = Array.from($els, (el) => el.innerText)
-      const filteredByUni = tokenNames.filter((tokenName) => tokenName.toLowerCase().includes('uni'))
-      cy.wrap(filteredByUni).as('filteredByUni')
-    })
-
-    cy.get('[data-cy="explore-tokens-search-input"]')
-      .clear()
-      .type('uni')
-      .type('{enter}')
-      .then(() => {
-        cy.get('[data-cy="token-name"]').its('length').should('be.lt', 100)
-        cy.get('@filteredByUni').then((filteredByUni) => {
-          cy.get('[data-cy="token-name"]').then(($els) => {
-            const tokenNames = Array.from($els, (el) => el.innerText)
-            expect(tokenNames.length).to.equal(filteredByUni.length)
-            tokenNames.forEach((tokenName) => {
-              expect(filteredByUni).to.include(tokenName)
-            })
-          })
-        })
-      })
   })
 
+  function aliasFilteredTokens(filter: string) {
+    cy.get('[data-cy="token-name"]').then((tokens) => {
+      cy.wrap(Array.from(tokens).filter((token) => token.innerText.toLowerCase().includes(filter))).as('filteredTokens')
+    })
+  }
+
+  function searchFor(filter: string) {
+    cy.get('[data-cy="explore-tokens-search-input"]').clear().type(filter).type('{enter}')
+  }
+
   it('should filter correctly by dao search term', () => {
-    cy.visit('/tokens')
-    cy.get('[data-cy="token-name"]').then(($els) => {
-      const tokenNames = Array.from($els, (el) => el.innerText)
-      const filteredByDao = tokenNames.filter((tokenName) => tokenName.toLowerCase().includes('dao'))
-      cy.wrap(filteredByDao).as('filteredByDao')
+    aliasFilteredTokens('dao')
+    searchFor('dao')
+
+    cy.get('@filteredTokens').then((filteredTokens) => {
+      cy.get('[data-cy="token-name"]').should('deep.equal', filteredTokens)
     })
-
-    cy.get('[data-cy="explore-tokens-search-input"]')
-      .clear()
-      .type('dao')
-      .type('{enter}')
-      .then(() => {
-        cy.get('[data-cy="token-name"]').its('length').should('be.lt', 100)
-        cy.get('@filteredByDao').then((filteredByDao) => {
-          cy.get('[data-cy="token-name"]').then(($els) => {
-            const tokenNames = Array.from($els, (el) => el.innerText)
-            expect(tokenNames.length).to.equal(filteredByDao.length)
-            tokenNames.forEach((tokenName) => {
-              expect(filteredByDao).to.include(tokenName)
-            })
-          })
-        })
-      })
-  })
-
-  it('should filter correctly by ax search term', () => {
-    cy.visit('/tokens')
-    cy.get('[data-cy="token-name"]').then(($els) => {
-      const tokenNames = Array.from($els, (el) => el.innerText)
-      const filteredByAx = tokenNames.filter((tokenName) => tokenName.toLowerCase().includes('ax'))
-      cy.wrap(filteredByAx).as('filteredByAx')
-    })
-
-    cy.get('[data-cy="explore-tokens-search-input"]')
-      .clear()
-      .type('ax')
-      .type('{enter}')
-      .then(() => {
-        cy.get('[data-cy="token-name"]').its('length').should('be.lt', 100)
-        cy.get('@filteredByAx').then((filteredByAx) => {
-          cy.get('[data-cy="token-name"]').then(($els) => {
-            const tokenNames = Array.from($els, (el) => el.innerText)
-            expect(tokenNames.length).to.equal(filteredByAx.length)
-            tokenNames.forEach((tokenName) => {
-              expect(filteredByAx).to.include(tokenName)
-            })
-          })
-        })
-      })
   })
 })

cypress/e2e/token-explore.test.ts

@@ -10,11 +10,11 @@ describe('Token explore', () => {
     cy.get(getTestSelectorStartsWith('token-table')).its('length').should('be.greaterThan', 0)
     // check sorted svg icon is present in volume cell, since tokens are sorted by volume by default
     cy.get(getTestSelector('header-row')).find(getTestSelector('volume-cell')).find('svg').should('exist')
-    cy.get(getTestSelector('token-table-row-ETH')).find(getTestSelector('name-cell')).should('include.text', 'Ether')
-    cy.get(getTestSelector('token-table-row-ETH')).find(getTestSelector('volume-cell')).should('include.text', '$')
-    cy.get(getTestSelector('token-table-row-ETH')).find(getTestSelector('price-cell')).should('include.text', '$')
-    cy.get(getTestSelector('token-table-row-ETH')).find(getTestSelector('tvl-cell')).should('include.text', '$')
-    cy.get(getTestSelector('token-table-row-ETH'))
+    cy.get(getTestSelector('token-table-row-NATIVE')).find(getTestSelector('name-cell')).should('include.text', 'Ether')
+    cy.get(getTestSelector('token-table-row-NATIVE')).find(getTestSelector('volume-cell')).should('include.text', '$')
+    cy.get(getTestSelector('token-table-row-NATIVE')).find(getTestSelector('price-cell')).should('include.text', '$')
+    cy.get(getTestSelector('token-table-row-NATIVE')).find(getTestSelector('tvl-cell')).should('include.text', '$')
+    cy.get(getTestSelector('token-table-row-NATIVE'))
       .find(getTestSelector('percent-change-cell'))
       .should('include.text', '%')
     cy.get(getTestSelector('header-row')).find(getTestSelector('price-cell')).click()
@@ -24,24 +24,24 @@ describe('Token explore', () => {
   it('should update when time window toggled', () => {
     cy.visit('/tokens/ethereum')
     cy.get(getTestSelector('time-selector')).should('contain', '1D')
-    cy.get(getTestSelector('token-table-row-ETH'))
+    cy.get(getTestSelector('token-table-row-NATIVE'))
       .find(getTestSelector('volume-cell'))
       .then(function ($elem) {
         cy.wrap($elem.text()).as('dailyEthVol')
       })
     cy.get(getTestSelector('time-selector')).click()
     cy.get(getTestSelector('1Y')).click()
-    cy.get(getTestSelector('token-table-row-ETH'))
+    cy.get(getTestSelector('token-table-row-NATIVE'))
       .find(getTestSelector('volume-cell'))
       .then(function ($elem) {
         cy.wrap($elem.text()).as('yearlyEthVol')
       })
-    expect(cy.get('@dailyEthVol')).to.not.equal(cy.get('@yearlyEthVol'))
+    cy.get('@dailyEthVol').should('not.equal', cy.get('@yearlyEthVol'))
   })
 
   it('should navigate to token detail page when row clicked', () => {
     cy.visit('/tokens/ethereum')
-    cy.get(getTestSelector('token-table-row-ETH')).click()
+    cy.get(getTestSelector('token-table-row-NATIVE')).click()
     cy.get(getTestSelector('token-details-about-section')).should('exist')
     cy.get(getTestSelector('token-details-stats')).should('exist')
     cy.get(getTestSelector('token-info-container')).should('exist')
@@ -53,13 +53,15 @@ describe('Token explore', () => {
   it('should update when global network changed', () => {
     cy.visit('/tokens/ethereum')
     cy.get(getTestSelector('tokens-network-filter-selected')).should('contain', 'Ethereum')
-    cy.get(getTestSelector('token-table-row-ETH')).should('exist')
+    cy.get(getTestSelector('token-table-row-NATIVE')).should('exist')
 
     // note: cannot switch global chain via UI because we cannot approve the network switch
     // in metamask modal using plain cypress. this is a workaround.
     cy.visit('/tokens/polygon')
     cy.get(getTestSelector('tokens-network-filter-selected')).should('contain', 'Polygon')
-    cy.get(getTestSelector('token-table-row-MATIC')).should('exist')
+    cy.get(getTestSelector('token-table-row-NATIVE'))
+      .find(getTestSelector('name-cell'))
+      .should('include.text', 'Polygon Matic')
   })
 
   it('should update when token explore table network changed', () => {
@@ -67,8 +69,5 @@ describe('Token explore', () => {
     cy.get(getTestSelector('tokens-network-filter-selected')).click()
     cy.get(getTestSelector('tokens-network-filter-option-optimism')).click()
     cy.get(getTestSelector('tokens-network-filter-selected')).should('contain', 'Optimism')
-    cy.reload()
-    cy.get(getTestSelector('tokens-network-filter-selected')).should('contain', 'Optimism')
-    cy.get(getTestSelector('chain-selector-logo')).invoke('attr', 'alt').should('eq', 'Ethereum')
   })
 })

cypress/e2e/universal-search.test.ts

@@ -1,64 +1,72 @@
+import { ChainId } from '@uniswap/sdk-core'
+import { UNI } from 'constants/tokens'
+
 import { getTestSelector } from '../utils'
 
+const UNI_ADDRESS = UNI[ChainId.MAINNET].address.toLowerCase()
+
 describe('Universal search bar', () => {
-  before(() => {
+  function openSearch() {
+    // can't just type "/" because on mobile it doesn't respond to that
+    cy.get('[data-cy="magnifying-icon"]').parent().eq(1).click()
+  }
+
+  beforeEach(() => {
     cy.visit('/')
-    cy.get('[data-cy="magnifying-icon"]')
-      .parent()
-      .then(($navIcon) => {
-        $navIcon.click()
-      })
   })
 
-  it('should yield clickable result for regular token or nft collection search term', () => {
-    // Search for uni token by name.
-    cy.get('[data-cy="search-bar-input"]').last().clear().type('uni')
-    cy.get('[data-cy="searchbar-token-row-UNI"]')
+  function getSearchBar() {
+    return cy.get('[data-cy="search-bar-input"]').last()
+  }
+
+  it('should yield clickable result that is then added to recent searches', () => {
+    // Search for UNI token by name.
+    openSearch()
+    getSearchBar().clear().type('uni')
+
+    cy.get(getTestSelector(`searchbar-token-row-ETHEREUM-${UNI_ADDRESS}`))
       .should('contain.text', 'Uniswap')
       .and('contain.text', 'UNI')
       .and('contain.text', '$')
       .and('contain.text', '%')
-    cy.get('[data-cy="searchbar-token-row-UNI"]').first().click()
+      .click()
+    cy.location('pathname').should('equal', '/tokens/ethereum/0x1f9840a85d5af5bf1d1762f925bdaddc4201f984')
 
-    cy.get('div').contains('Uniswap').should('exist')
-    // Stats should have: TVL, 24H Volume, 52W low, 52W high.
-    cy.get(getTestSelector('token-details-stats')).should('exist')
-    cy.get(getTestSelector('token-details-stats')).within(() => {
-      cy.get('[data-cy="tvl"]').should('include.text', '$')
-      cy.get('[data-cy="volume-24h"]').should('include.text', '$')
-      cy.get('[data-cy="52w-low"]').should('include.text', '$')
-      cy.get('[data-cy="52w-high"]').should('include.text', '$')
-    })
-
-    // About section should have description of token.
-    cy.get(getTestSelector('token-details-about-section')).should('exist')
-    cy.contains('UNI is the governance token for Uniswap').should('exist')
-  })
-
-  it.skip('should show recent tokens and popular tokens with empty search term', () => {
-    cy.get('[data-cy="magnifying-icon"]')
-      .parent()
-      .then(($navIcon) => {
-        $navIcon.click()
-      })
-    // Recently searched UNI token should exist.
-    cy.get('[data-cy="search-bar-input"]').last().clear()
-    cy.get('[data-cy="searchbar-dropdown"]')
-      .contains('[data-cy="searchbar-dropdown"]', 'Recent searches')
-      .find('[data-cy="searchbar-token-row-UNI"]')
+    openSearch()
+    cy.get(getTestSelector('searchbar-dropdown'))
+      .contains(getTestSelector('searchbar-dropdown'), 'Recent searches')
+      .find(getTestSelector(`searchbar-token-row-ETHEREUM-${UNI_ADDRESS}`))
       .should('exist')
-
-    // Most popular 3 tokens should be shown.
-    cy.get('[data-cy="searchbar-dropdown"]')
-      .contains('[data-cy="searchbar-dropdown"]', 'Popular tokens')
-      .find('[data-cy^="searchbar-token-row"]')
-      .its('length')
-      .should('be.eq', 3)
   })
 
-  it.skip('should show blocked badge when blocked token is searched for', () => {
-    // Search for mTSLA, which is a blocked token.
-    cy.get('[data-cy="search-bar-input"]').last().clear().type('mtsla')
-    cy.get('[data-cy="searchbar-token-row-mTSLA"]').find('[data-cy="blocked-icon"]').should('exist')
-  })
+  it(
+    'should go to the selected result when recent results are shown',
+    // this test is experiencing flake despite being correct, i can see the right value in DOM
+    // but for some reason cypress doesn't find it, so adding retries for now :/
+    {
+      // @ts-ignore see https://uniswapteam.slack.com/archives/C047U65H422/p1691455547556309
+      // basically cypress has bad types due to overlap with jest and you just have to deal with it
+      // i tried removing jest types but still happens
+      retries: {
+        runMode: 3,
+        openMode: 3,
+      },
+    },
+    () => {
+      // Seed recent results with UNI.
+      openSearch()
+      getSearchBar().type('uni')
+      cy.get(getTestSelector(`searchbar-token-row-ETHEREUM-${UNI_ADDRESS}`))
+      getSearchBar().clear().type('{esc}')
+
+      // Search a different token by name.
+      openSearch()
+      getSearchBar().type('eth')
+      cy.get(getTestSelector('searchbar-token-row-ETHEREUM-NATIVE'))
+
+      // Validate that we go to the searched/selected result.
+      getSearchBar().type('{enter}')
+      cy.url().should('contain', 'tokens/ethereum/NATIVE')
+    }
+  )
 })

cypress/e2e/wallet-connection/connect.test.ts

@@ -0,0 +1,41 @@
+import { getTestSelector } from '../../utils'
+import { DISCONNECTED_WALLET_USER_STATE } from '../../utils/user-state'
+
+describe('disconnect wallet', () => {
+  it('should clear state', () => {
+    cy.visit('/swap')
+    cy.get('#swap-currency-input .token-amount-input').clear().type('1')
+
+    // Verify wallet is connected
+    cy.hardhat().then((hardhat) => cy.contains(hardhat.wallet.address.substring(0, 6)))
+    cy.contains('Balance:')
+
+    // Disconnect the wallet
+    cy.hardhat().then((hardhat) => cy.contains(hardhat.wallet.address.substring(0, 6)).click())
+    cy.get(getTestSelector('wallet-disconnect')).click()
+    cy.get(getTestSelector('wallet-disconnect')).contains('Disconnect')
+    cy.get(getTestSelector('wallet-disconnect')).click()
+
+    // Verify wallet has disconnected
+    cy.contains('Connect a wallet').should('exist')
+    cy.get(getTestSelector('navbar-connect-wallet')).contains('Connect')
+    cy.contains('Connect Wallet')
+
+    // Verify swap input is cleared
+    cy.get('#swap-currency-input .token-amount-input').should('have.value', '1')
+  })
+})
+
+describe('connect wallet', () => {
+  it('should load state', () => {
+    cy.visit('/swap', { userState: DISCONNECTED_WALLET_USER_STATE })
+
+    // Connect the wallet
+    cy.get(getTestSelector('navbar-connect-wallet')).contains('Connect').click()
+    cy.contains('MetaMask').click()
+
+    // Verify wallet is connected
+    cy.hardhat().then((hardhat) => cy.contains(hardhat.wallet.address.substring(0, 6)))
+    cy.contains('Balance:')
+  })
+})

cypress/e2e/wallet-connection/switch-network.test.ts

@@ -0,0 +1,144 @@
+import { createDeferredPromise } from '../../../src/test-utils/promise'
+import { getTestSelector } from '../../utils'
+
+function waitsForActiveChain(chain: string) {
+  cy.get(getTestSelector('chain-selector-logo')).invoke('attr', 'alt').should('eq', chain)
+}
+
+function switchChain(chain: string) {
+  cy.get(getTestSelector('chain-selector')).eq(1).click()
+  cy.contains(chain).click()
+}
+
+describe('network switching', () => {
+  beforeEach(() => {
+    cy.visit('/swap')
+    cy.get(getTestSelector('web3-status-connected'))
+  })
+
+  function rejectsNetworkSwitchWith(rejection: unknown) {
+    cy.hardhat().then((hardhat) => {
+      // Reject network switch
+      const sendStub = cy.stub(hardhat.provider, 'send').log(false).as('switch')
+      sendStub.withArgs('wallet_switchEthereumChain').rejects(rejection)
+      sendStub.callThrough() // allows other calls to return non-stubbed values
+    })
+
+    switchChain('Polygon')
+
+    // Verify rejected network switch
+    cy.get('@switch').should('have.been.calledWith', 'wallet_switchEthereumChain')
+    waitsForActiveChain('Ethereum')
+    cy.get(getTestSelector('web3-status-connected'))
+  }
+
+  it('should not display message on user rejection', () => {
+    const USER_REJECTION = { code: 4001 }
+    rejectsNetworkSwitchWith(USER_REJECTION)
+    cy.get(getTestSelector('popups')).should('not.contain', 'Failed to switch networks')
+  })
+
+  it('should display message on unknown error', () => {
+    rejectsNetworkSwitchWith(new Error('Unknown error'))
+    cy.get(getTestSelector('popups')).contains('Failed to switch networks')
+  })
+
+  it('should add missing chain', () => {
+    cy.hardhat().then((hardhat) => {
+      // https://docs.metamask.io/guide/rpc-api.html#unrestricted-methods
+      const CHAIN_NOT_ADDED = { code: 4902 } // missing message in useSelectChain
+
+      // Reject network switch with CHAIN_NOT_ADDED
+      const sendStub = cy.stub(hardhat.provider, 'send').log(false).as('switch')
+      let added = false
+      sendStub
+        .withArgs('wallet_switchEthereumChain')
+        .callsFake(() => (added ? Promise.resolve(null) : Promise.reject(CHAIN_NOT_ADDED)))
+      sendStub.withArgs('wallet_addEthereumChain').callsFake(() => {
+        added = true
+        return Promise.resolve(null)
+      })
+      sendStub.callThrough() // allows other calls to return non-stubbed values
+    })
+
+    switchChain('Polygon')
+
+    // Verify the network was added
+    cy.get('@switch').should('have.been.calledWith', 'wallet_switchEthereumChain')
+    cy.get('@switch').should('have.been.calledWith', 'wallet_addEthereumChain', [
+      {
+        blockExplorerUrls: ['https://polygonscan.com/'],
+        chainId: '0x89',
+        chainName: 'Polygon',
+        nativeCurrency: { name: 'Polygon Matic', symbol: 'MATIC', decimals: 18 },
+        rpcUrls: ['https://polygon-rpc.com/'],
+      },
+    ])
+  })
+
+  it('should not disconnect while switching', () => {
+    const promise = createDeferredPromise()
+
+    cy.hardhat().then((hardhat) => {
+      // Reject network switch with CHAIN_NOT_ADDED
+      const sendStub = cy.stub(hardhat.provider, 'send').log(false).as('switch')
+      sendStub.withArgs('wallet_switchEthereumChain').returns(promise)
+      sendStub.callThrough() // allows other calls to return non-stubbed values
+    })
+
+    switchChain('Polygon')
+
+    // Verify there is no disconnection
+    cy.get('@switch').should('have.been.calledWith', 'wallet_switchEthereumChain')
+    cy.contains('Connecting to Polygon')
+    cy.get(getTestSelector('web3-status-connected')).should('be.disabled')
+    promise.resolve()
+  })
+
+  it('should switch networks', () => {
+    // Select an output currency
+    cy.get('#swap-currency-output .open-currency-select-button').click()
+    cy.contains('USDC').click()
+
+    // Populate input/output fields
+    cy.get('#swap-currency-input .token-amount-input').clear().type('1')
+    cy.get('#swap-currency-output .token-amount-input').should('not.equal', '')
+
+    // Switch network
+    switchChain('Polygon')
+
+    // Verify network switch
+    cy.wait('@wallet_switchEthereumChain')
+    waitsForActiveChain('Polygon')
+    cy.get(getTestSelector('web3-status-connected'))
+    cy.url().should('contain', 'chain=polygon')
+
+    // Verify that the input/output fields were reset
+    cy.get('#swap-currency-input .token-amount-input').should('have.value', '')
+    cy.get(`#swap-currency-input .token-symbol-container`).should('contain.text', 'MATIC')
+    cy.get(`#swap-currency-output .token-amount-input`).should('not.have.value')
+    cy.get(`#swap-currency-output .token-symbol-container`).should('contain.text', 'Select token')
+  })
+})
+
+describe('network switching from URL param', () => {
+  it('should switch network from URL param', () => {
+    cy.visit('/swap?chain=polygon')
+    cy.get(getTestSelector('web3-status-connected'))
+    cy.wait('@wallet_switchEthereumChain')
+    waitsForActiveChain('Polygon')
+  })
+
+  it('should be able to switch network after loading from URL param', () => {
+    cy.visit('/swap?chain=polygon')
+    cy.get(getTestSelector('web3-status-connected'))
+    cy.wait('@wallet_switchEthereumChain')
+    waitsForActiveChain('Polygon')
+
+    // switching to another chain clears query param
+    switchChain('Ethereum')
+    cy.wait('@wallet_switchEthereumChain')
+    waitsForActiveChain('Ethereum')
+    cy.url().should('not.contain', 'chain=polygon')
+  })
+})

cypress/e2e/wallet-dropdown.test.ts

@@ -1,96 +1,132 @@
 import { getTestSelector } from '../utils'
 
-function visit(darkMode: boolean) {
-  cy.visit('/swap', {
-    onBeforeLoad(win) {
-      cy.stub(win, 'matchMedia')
-        .withArgs('(prefers-color-scheme: dark)')
-        .returns({
-          matches: darkMode,
-          addEventListener() {
-            // do nothing
-          },
-        })
-    },
-  })
-}
-
 describe('Wallet Dropdown', () => {
-  before(() => {
-    cy.visit('/pools')
+  function itChangesTheme() {
+    it('should change theme', () => {
+      cy.get(getTestSelector('theme-lightmode')).click()
+
+      cy.get(getTestSelector('theme-lightmode')).should('not.have.css', 'background-color', 'rgba(0, 0, 0, 0)')
+      cy.get(getTestSelector('theme-darkmode')).should('have.css', 'background-color', 'rgba(0, 0, 0, 0)')
+      cy.get(getTestSelector('theme-auto')).should('have.css', 'background-color', 'rgba(0, 0, 0, 0)')
+
+      cy.get(getTestSelector('theme-darkmode')).click()
+      cy.get(getTestSelector('theme-lightmode')).should('have.css', 'background-color', 'rgba(0, 0, 0, 0)')
+      cy.get(getTestSelector('theme-darkmode')).should('not.have.css', 'background-color', 'rgba(0, 0, 0, 0)')
+      cy.get(getTestSelector('theme-auto')).should('have.css', 'background-color', 'rgba(0, 0, 0, 0)')
+
+      cy.get(getTestSelector('theme-auto')).click()
+      cy.get(getTestSelector('theme-lightmode')).should('have.css', 'background-color', 'rgba(0, 0, 0, 0)')
+      cy.get(getTestSelector('theme-darkmode')).should('have.css', 'background-color', 'rgba(0, 0, 0, 0)')
+      cy.get(getTestSelector('theme-auto')).should('not.have.css', 'background-color', 'rgba(0, 0, 0, 0)')
+    })
+  }
+
+  function itChangesLocale() {
+    it('should change locale', () => {
+      cy.contains('Uniswap available in: English').should('not.exist')
+
+      cy.get(getTestSelector('wallet-language-item')).contains('Afrikaans').click({ force: true })
+      cy.location('search').should('match', /\?lng=af-ZA$/)
+      cy.contains('Uniswap available in: English')
+
+      cy.get(getTestSelector('wallet-language-item')).contains('English').click({ force: true })
+      cy.location('search').should('match', /\?lng=en-US$/)
+      cy.contains('Uniswap available in: English').should('not.exist')
+    })
+  }
+
+  describe('connected', () => {
+    beforeEach(() => {
+      cy.visit('/')
+      cy.get(getTestSelector('web3-status-connected')).click()
+      cy.get(getTestSelector('wallet-settings')).click()
+    })
+    itChangesTheme()
+    itChangesLocale()
   })
 
-  it('should change the theme', () => {
-    cy.get(getTestSelector('web3-status-connected')).click()
-    cy.get(getTestSelector('wallet-settings')).click()
-    cy.get(getTestSelector('theme-lightmode')).click()
+  describe('testnet toggle', () => {
+    beforeEach(() => {
+      cy.visit('/swap')
+    })
+    it('should toggle testnet visibility', () => {
+      cy.get(getTestSelector('chain-selector')).last().click()
+      cy.get(getTestSelector('chain-selector-options')).should('not.contain.text', 'Sepolia')
 
-    cy.get(getTestSelector('theme-lightmode')).should('not.have.css', 'background-color', 'rgba(0, 0, 0, 0)')
-    cy.get(getTestSelector('theme-darkmode')).should('have.css', 'background-color', 'rgba(0, 0, 0, 0)')
-    cy.get(getTestSelector('theme-auto')).should('have.css', 'background-color', 'rgba(0, 0, 0, 0)')
-
-    cy.get(getTestSelector('theme-darkmode')).click()
-    cy.get(getTestSelector('theme-lightmode')).should('have.css', 'background-color', 'rgba(0, 0, 0, 0)')
-    cy.get(getTestSelector('theme-darkmode')).should('not.have.css', 'background-color', 'rgba(0, 0, 0, 0)')
-    cy.get(getTestSelector('theme-auto')).should('have.css', 'background-color', 'rgba(0, 0, 0, 0)')
-
-    cy.get(getTestSelector('theme-auto')).click()
-    cy.get(getTestSelector('theme-lightmode')).should('have.css', 'background-color', 'rgba(0, 0, 0, 0)')
-    cy.get(getTestSelector('theme-darkmode')).should('have.css', 'background-color', 'rgba(0, 0, 0, 0)')
-    cy.get(getTestSelector('theme-auto')).should('not.have.css', 'background-color', 'rgba(0, 0, 0, 0)')
+      cy.get(getTestSelector('web3-status-connected')).click()
+      cy.get(getTestSelector('wallet-settings')).click()
+      cy.get('#testnets-toggle').click()
+      cy.get(getTestSelector('close-account-drawer')).click()
+      cy.get(getTestSelector('chain-selector')).last().click()
+      cy.get(getTestSelector('chain-selector-options')).should('contain.text', 'Sepolia')
+    })
   })
 
-  it('should select a language', () => {
-    cy.get(getTestSelector('wallet-language-item')).contains('Deutsch').click({ force: true })
-    cy.get(getTestSelector('wallet-header')).should('contain', 'Sprache')
-    cy.get(getTestSelector('wallet-language-item')).contains('English').click({ force: true })
-    cy.get(getTestSelector('wallet-header')).should('contain', 'Language')
-    cy.get(getTestSelector('wallet-back')).click()
+  describe('disconnected', () => {
+    beforeEach(() => {
+      cy.visit('/')
+      cy.get(getTestSelector('web3-status-connected')).click()
+      // click twice, first time to show confirmation, second to confirm
+      cy.get(getTestSelector('wallet-disconnect')).click()
+      cy.get(getTestSelector('wallet-disconnect')).should('contain', 'Disconnect')
+      cy.get(getTestSelector('wallet-disconnect')).click()
+      cy.get(getTestSelector('wallet-settings')).click()
+    })
+    itChangesTheme()
+    itChangesLocale()
   })
 
-  it('should change the theme when not connected', () => {
-    cy.get(getTestSelector('wallet-disconnect')).click()
-    cy.get(getTestSelector('wallet-settings')).click()
-    cy.get(getTestSelector('theme-lightmode')).should('exist')
+  describe('with color theme', () => {
+    function visitSwapWithColorTheme({ dark }: { dark: boolean }) {
+      cy.visit('/swap', {
+        onBeforeLoad(win) {
+          cy.stub(win, 'matchMedia')
+            .withArgs('(prefers-color-scheme: dark)')
+            .returns({
+              matches: dark,
+              addEventListener() {
+                /* noop */
+              },
+              removeEventListener() {
+                /* noop */
+              },
+            })
+        },
+      })
+    }
+
+    it('should properly use dark system theme when auto theme setting is selected', () => {
+      visitSwapWithColorTheme({ dark: true })
+      cy.get(getTestSelector('web3-status-connected')).click()
+      cy.get(getTestSelector('wallet-settings')).click()
+      cy.get(getTestSelector('theme-auto')).click()
+      cy.get(getTestSelector('wallet-header')).should('have.css', 'color', 'rgb(152, 161, 192)')
+    })
+
+    it('should properly use light system theme when auto theme setting is selected', () => {
+      visitSwapWithColorTheme({ dark: false })
+      cy.get(getTestSelector('web3-status-connected')).click()
+      cy.get(getTestSelector('wallet-settings')).click()
+      cy.get(getTestSelector('theme-auto')).click()
+      cy.get(getTestSelector('wallet-header')).should('have.css', 'color', 'rgb(119, 128, 160)')
+    })
   })
 
-  it('should select a language when not connected', () => {
-    cy.get(getTestSelector('wallet-language-item')).contains('Deutsch').click({ force: true })
-    cy.get(getTestSelector('wallet-header')).should('contain', 'Sprache')
-    cy.get(getTestSelector('wallet-language-item')).contains('English').click({ force: true })
-    cy.get(getTestSelector('wallet-header')).should('contain', 'Language')
-    cy.get(getTestSelector('wallet-back')).click()
-  })
+  describe('mobile', () => {
+    beforeEach(() => {
+      cy.viewport('iphone-6').visit('/')
+    })
 
-  it('should properly use dark system theme when auto theme setting is selected', () => {
-    visit(true)
-    cy.get(getTestSelector('web3-status-connected')).click()
-    cy.get(getTestSelector('wallet-settings')).click()
-    cy.get(getTestSelector('theme-auto')).click()
-    cy.get(getTestSelector('wallet-header')).should('have.css', 'color', 'rgb(152, 161, 192)')
-  })
+    it('should dismiss the wallet bottom sheet when clicking buy crypto', () => {
+      cy.get(getTestSelector('web3-status-connected')).click()
+      cy.get(getTestSelector('wallet-buy-crypto')).click()
+      cy.contains('Buy crypto').should('not.be.visible')
+    })
 
-  it('should properly use light system theme when auto theme setting is selected', () => {
-    visit(false)
-    cy.get(getTestSelector('web3-status-connected')).click()
-    cy.get(getTestSelector('wallet-settings')).click()
-    cy.get(getTestSelector('theme-auto')).click()
-    cy.get(getTestSelector('wallet-header')).should('have.css', 'color', 'rgb(119, 128, 160)')
-  })
-
-  it('should dismiss the wallet bottom sheet when clicking buy crypto', () => {
-    visit(false)
-    cy.viewport('iphone-6')
-    cy.get(getTestSelector('web3-status-connected')).click()
-    cy.get(getTestSelector('wallet-buy-crypto')).click()
-    cy.contains('Buy crypto').should('not.be.visible')
-  })
-
-  it('should use a bottom sheet and dismiss when on a mobile screen size', () => {
-    visit(true)
-    cy.viewport('iphone-6')
-    cy.get(getTestSelector('web3-status-connected')).click()
-    cy.root().click(15, 40)
-    cy.get(getTestSelector('wallet-settings')).should('not.be.visible')
+    it('should use a bottom sheet and dismiss when on a mobile screen size', () => {
+      cy.get(getTestSelector('web3-status-connected')).click()
+      cy.root().click(15, 40)
+      cy.get(getTestSelector('wallet-settings')).should('not.be.visible')
+    })
   })
 })

cypress/fixtures/mini-portfolio/pools.json

@@ -0,0 +1 @@
+{}

cypress/staging/t9n.test.ts

@@ -0,0 +1,19 @@
+import { getTestSelector } from '../utils'
+
+describe('translations', () => {
+  it('loads locale from the query param', () => {
+    cy.visit('/?lng=fr-FR')
+    cy.contains('Échanger')
+    cy.contains('Uniswap disponible en : English')
+  })
+
+  it('loads locale from menu', () => {
+    cy.visit('/')
+    cy.get(getTestSelector('web3-status-connected')).click()
+    cy.get(getTestSelector('wallet-settings')).click()
+    cy.get(getTestSelector('wallet-language-item')).contains('français').click({ force: true })
+    cy.location('search').should('match', /\?lng=fr-FR$/)
+    cy.contains('Échanger')
+    cy.contains('Uniswap disponible en : English')
+  })
+})

cypress/support/commands.ts

@@ -2,10 +2,9 @@ import 'cypress-hardhat/lib/browser'
 
 import { Eip1193Bridge } from '@ethersproject/experimental/lib/eip1193-bridge'
 
-import { FeatureFlag } from '../../src/featureFlags/flags/featureFlags'
+import { FeatureFlag } from '../../src/featureFlags'
 import { UserState } from '../../src/state/user/reducer'
 import { CONNECTED_WALLET_USER_STATE } from '../utils/user-state'
-import { injected } from './ethereum'
 
 declare global {
   // eslint-disable-next-line @typescript-eslint/no-namespace
@@ -13,15 +12,19 @@ declare global {
     interface ApplicationWindow {
       ethereum: Eip1193Bridge
     }
+    interface Chainable<Subject> {
+      /**
+       * Wait for a specific event to be sent to amplitude. If the event is found, the subject will be the event.
+       *
+       * @param {string} eventName - The type of the event to search for e.g. SwapEventName.SWAP_TRANSACTION_COMPLETED
+       * @param {number} timeout - The maximum amount of time (in ms) to wait for the event.
+       * @returns {Chainable<Subject>}
+       */
+      waitForAmplitudeEvent(eventName: string, timeout?: number): Chainable<Subject>
+    }
     interface VisitOptions {
       serviceWorker?: true
       featureFlags?: Array<FeatureFlag>
-      /**
-       * The mock ethereum provider to inject into the page.
-       * @default 'goerli'
-       */
-      // TODO(INFRA-175): Migrate all usage of 'goerli' to 'hardhat'.
-      ethereum?: 'goerli' | 'hardhat'
       /**
        * Initial user state.
        * @default {@type import('../utils/user-state').CONNECTED_WALLET_USER_STATE}
@@ -39,8 +42,7 @@ Cypress.Commands.overwrite(
     if (typeof url !== 'string') throw new Error('Invalid arguments. The first argument to cy.visit must be the path.')
 
     // Add a hash in the URL if it is not present (to use hash-based routing correctly with queryParams).
-    let hashUrl = url.startsWith('/') && url.length > 2 && !url.startsWith('/#') ? `/#${url}` : url
-    if (options?.ethereum === 'goerli') hashUrl += `${url.includes('?') ? '&' : '?'}chain=goerli`
+    const hashUrl = url.startsWith('/') && url.length > 2 && !url.startsWith('/#') ? `/#${url}` : url
 
     return cy
       .intercept('/service-worker.js', options?.serviceWorker ? undefined : { statusCode: 404 })
@@ -58,7 +60,7 @@ Cypress.Commands.overwrite(
             // Set initial user state.
             win.localStorage.setItem(
               'redux_localstorage_simple_user', // storage key for the user reducer using 'redux-localstorage-simple'
-              JSON.stringify(options?.userState ?? CONNECTED_WALLET_USER_STATE)
+              JSON.stringify({ ...CONNECTED_WALLET_USER_STATE, ...(options?.userState ?? {}) })
             )
 
             // Set feature flags, if configured.
@@ -68,13 +70,29 @@ Cypress.Commands.overwrite(
             }
 
             // Inject the mock ethereum provider.
-            if (options?.ethereum === 'hardhat') {
-              win.ethereum = provider
-            } else {
-              win.ethereum = injected
-            }
+            win.ethereum = provider
           },
         })
       )
   }
 )
+
+Cypress.Commands.add('waitForAmplitudeEvent', (eventName, timeout = 5000 /* 5s */) => {
+  const startTime = new Date().getTime()
+
+  function checkRequest() {
+    return cy.wait('@amplitude', { timeout }).then((interception) => {
+      const events = interception.request.body.events
+      const event = events.find((event: any) => event.event_type === eventName)
+
+      if (event) {
+        return cy.wrap(event)
+      } else if (new Date().getTime() - startTime > timeout) {
+        throw new Error(`Event ${eventName} not found within the specified timeout`)
+      } else {
+        return checkRequest()
+      }
+    })
+  }
+  return checkRequest()
+})

cypress/support/e2e.ts

@@ -5,7 +5,6 @@
 // https://on.cypress.io/configuration
 // ***********************************************************
 
-import '@cypress/code-coverage/support'
 import './commands'
 import './setupTests'
 

cypress/support/ethereum.ts

@@ -1,74 +0,0 @@
-/**
- * Updates cy.visit() to include an injected window.ethereum provider.
- */
-
-import { Eip1193Bridge } from '@ethersproject/experimental/lib/eip1193-bridge'
-// eslint-disable-next-line @typescript-eslint/no-restricted-imports
-import { JsonRpcProvider } from '@ethersproject/providers'
-import { Wallet } from '@ethersproject/wallet'
-
-import { SupportedChainId } from '../../src/constants/chains'
-
-// todo: figure out how env vars actually work in CI
-// const TEST_PRIVATE_KEY = Cypress.env('INTEGRATION_TEST_PRIVATE_KEY')
-const TEST_PRIVATE_KEY = '0xe580410d7c37d26c6ad1a837bbae46bc27f9066a466fb3a66e770523b4666d19'
-
-// address of the above key
-const TEST_ADDRESS_NEVER_USE = new Wallet(TEST_PRIVATE_KEY).address
-const CHAIN_ID = SupportedChainId.GOERLI
-const HEXLIFIED_CHAIN_ID = `0x${CHAIN_ID.toString(16)}`
-
-const provider = new JsonRpcProvider('https://goerli.infura.io/v3/4bf032f2d38a4ed6bb975b80d6340847', 5)
-const signer = new Wallet(TEST_PRIVATE_KEY, provider)
-export const injected = new (class extends Eip1193Bridge {
-  chainId = CHAIN_ID
-
-  async sendAsync(...args: any[]) {
-    console.debug('sendAsync called', ...args)
-    return this.send(...args)
-  }
-  async send(...args: any[]) {
-    console.debug('send called', ...args)
-    const isCallbackForm = typeof args[0] === 'object' && typeof args[1] === 'function'
-    let callback
-    let method
-    let params
-    if (isCallbackForm) {
-      callback = args[1]
-      method = args[0].method
-      params = args[0].params
-    } else {
-      method = args[0]
-      params = args[1]
-    }
-    if (method === 'eth_requestAccounts' || method === 'eth_accounts') {
-      if (isCallbackForm) {
-        callback({ result: [TEST_ADDRESS_NEVER_USE] })
-      } else {
-        return Promise.resolve([TEST_ADDRESS_NEVER_USE])
-      }
-    }
-    if (method === 'eth_chainId') {
-      if (isCallbackForm) {
-        callback(null, { result: HEXLIFIED_CHAIN_ID })
-      } else {
-        return Promise.resolve(HEXLIFIED_CHAIN_ID)
-      }
-    }
-    try {
-      const result = await super.send(method, params)
-      console.debug('result received', method, params, result)
-      if (isCallbackForm) {
-        callback(null, { result })
-      } else {
-        return result
-      }
-    } catch (error) {
-      if (isCallbackForm) {
-        callback(error, null)
-      } else {
-        throw error
-      }
-    }
-  }
-})(signer, provider)

cypress/support/setupTests.ts

@@ -1,5 +1,6 @@
 // @ts-ignore
 import TokenListJSON from '@uniswap/default-token-list'
+import { CyHttpMessages } from 'cypress/types/net-stubbing'
 
 beforeEach(() => {
   // Many API calls enforce that requests come from our app, so we must mock Origin and Referer.
@@ -8,18 +9,17 @@ beforeEach(() => {
     req.headers['origin'] = 'https://app.uniswap.org'
   })
 
-  // Infura uses a test endpoint, which allow-lists http://localhost:3000 instead.
-  cy.intercept(/infura.io/, (req) => {
-    req.headers['referer'] = 'http://localhost:3000'
-    req.headers['origin'] = 'http://localhost:3000'
-    req.alias = req.body.method
-    req.continue()
-  })
+  // Infura is disabled for cypress tests - calls should be routed through the connected wallet instead.
+  cy.intercept(/infura.io/, { statusCode: 404 })
+
+  // Log requests to hardhat.
+  cy.intercept(/:8545/, logJsonRpc)
 
   // Mock analytics responses to avoid analytics in tests.
   cy.intercept('https://api.uniswap.org/v1/amplitude-proxy', (req) => {
     const requestBody = JSON.stringify(req.body)
     const byteSize = new Blob([requestBody]).size
+    req.alias = 'amplitude'
     req.reply(
       JSON.stringify({
         code: 200,
@@ -39,3 +39,21 @@ beforeEach(() => {
   // This resets the fork, as well as options like automine.
   cy.hardhat().then((hardhat) => hardhat.reset())
 })
+
+function logJsonRpc(req: CyHttpMessages.IncomingHttpRequest) {
+  req.alias = req.body.method
+  const log = Cypress.log({
+    autoEnd: false,
+    name: req.body.method,
+    message: req.body.params?.map((param: any) =>
+      typeof param === 'object' ? '{...}' : param?.toString().substring(0, 10)
+    ),
+  })
+  req.on('after:response', (res) => {
+    if (res.statusCode === 200) {
+      log.end()
+    } else {
+      log.error(new Error(`${res.statusCode}: ${res.statusMessage}`))
+    }
+  })
+}

cypress/tsconfig.json

@@ -1,17 +1,13 @@
 {
+  "extends": "../tsconfig.json",
   "compilerOptions": {
-    "esModuleInterop": true,
+    "composite": false,
     "incremental": true,
-    "lib": ["DOM", "DOM.Iterable", "ESNext"],
-    "noEmit": true,
-    "strict": true,
+    "isolatedModules": false,
+    "noImplicitAny": false,
     "target": "ES5",
     "tsBuildInfoFile": "../node_modules/.cache/tsbuildinfo/cypress", // avoid clobbering the build tsbuildinfo
-    "types": ["cypress", "node"]
+    "types": ["cypress", "node"],
   },
-  "exclude": ["node_modules"],
   "include": ["**/*.ts"],
-  "watchOptions": {
-    "excludeDirectories": ["node_modules"]
-  }
 }

cypress/utils/index.ts

@@ -1,3 +1,13 @@
+import { Currency } from '@uniswap/sdk-core'
+
 export const getTestSelector = (selectorId: string) => `[data-testid=${selectorId}]`
 
 export const getTestSelectorStartsWith = (selectorId: string) => `[data-testid^=${selectorId}]`
+
+/** Gets the balance of a token as a Chainable. */
+export function getBalance(token: Currency) {
+  return cy
+    .hardhat()
+    .then((hardhat) => hardhat.getBalance(hardhat.wallet, token))
+    .then((balance) => Number(balance.toFixed(1)))
+}

cypress/utils/user-state.ts

@@ -1,3 +1,6 @@
+import { ConnectionType } from '../../src/connection/types'
 import { UserState } from '../../src/state/user/reducer'
 
-export const CONNECTED_WALLET_USER_STATE: Partial<UserState> = { selectedWallet: 'INJECTED' }
+export const CONNECTED_WALLET_USER_STATE: Partial<UserState> = { selectedWallet: ConnectionType.INJECTED }
+
+export const DISCONNECTED_WALLET_USER_STATE: Partial<UserState> = { selectedWallet: undefined }

eslint_rules/enforce-retry-on-import.js

@@ -1,36 +0,0 @@
-/* eslint-env node */
-
-module.exports = {
-  meta: {
-    type: 'problem',
-    docs: {
-      description: 'enforce use of retry() for dynamic imports',
-      category: 'Best Practices',
-      recommended: false,
-    },
-    schema: [],
-  },
-  create(context) {
-    return {
-      ImportExpression(node) {
-        const grandParent = node.parent.parent
-        if (
-          !(
-            grandParent &&
-            grandParent.type === 'CallExpression' &&
-            // Technically, we are only checking that a function named `retry` wraps the dynamic import.
-            // We do not go as far as enforcing that it is import('utils/retry').retry
-            grandParent.callee.name === 'retry' &&
-            grandParent.arguments.length === 1 &&
-            grandParent.arguments[0].type === 'ArrowFunctionExpression'
-          )
-        ) {
-          context.report({
-            node,
-            message: 'Dynamic import should be wrapped in retry (see `utils/retry.ts`): `retry(() => import(...))`',
-          })
-        }
-      },
-    }
-  },
-}

eslint_rules/no-undefined-or.js

@@ -0,0 +1,44 @@
+/* eslint-env node */
+
+module.exports = {
+  meta: {
+    type: 'suggestion',
+    docs: {
+      description: 'Enforce the use of optional object fields',
+      category: 'Best Practices',
+      recommended: true,
+    },
+    fixable: 'code',
+    schema: [],
+  },
+  create(context) {
+    return {
+      'TSPropertySignature > TSTypeAnnotation > TSUnionType': (node) => {
+        const types = node.types
+        const hasUndefined = types.some((typeNode) => typeNode.type === 'TSUndefinedKeyword')
+
+        if (hasUndefined) {
+          const typesWithoutUndefined = types.filter((typeNode) => typeNode.type !== 'TSUndefinedKeyword')
+
+          // If there is more than one type left after removing 'undefined',
+          // join them together with ' | ' to create a new union type.
+          const newTypeSource =
+            typesWithoutUndefined.length > 1
+              ? typesWithoutUndefined.map((typeNode) => context.getSourceCode().getText(typeNode)).join(' | ')
+              : context.getSourceCode().getText(typesWithoutUndefined[0])
+
+          context.report({
+            node,
+            message: `Prefer optional properties to "Type | undefined".`,
+            fix(fixer) {
+              const propertySignature = node.parent.parent
+              const isAlreadyOptional = propertySignature.optional
+              const newTypeAnnotation = isAlreadyOptional ? `: ${newTypeSource}` : `?: ${newTypeSource}`
+              return fixer.replaceText(node.parent, newTypeAnnotation)
+            },
+          })
+        }
+      },
+    }
+  },
+}

functions/README.md

@@ -0,0 +1,50 @@
+# Cloudflare Cloud Functions
+
+## Purpose
+
+These functions utilize Cloudflare Functions to dynamically inject meta tags server side for richer link sharing capabilities.
+
+## Functions
+
+Currently, there are 2 types of cloudflare functions developed
+
+- Meta Data Injectors - Workers that inject [Open Graph](https://ogp.me/) standardized meta tags into the `header` of specific webpages.
+  - Currently we support this functionaltiy for three separate webpages: NFT Assets, NFT Collections, and Token Detail Pages
+  - These functions query data from GraphQL and then formats them into HTML `meta` tags to be injected
+- Dynamically Generated Images - Utilizes Vercel's [Open Graph Image Generation Library](https://vercel.com/docs/concepts/functions/edge-functions/og-image-generation) to create custom thumbnails for specific webpages
+  - Currently supports NFT Assets, NFT Collections, and Token Detail Pages
+  - These functions query data from GraphQL, and utilize `Satori` to convert HTML into a png image response which is then returned when the api is called.
+  - Can be found in the `api/image` folder. 
+
+## Testing
+
+Testing is done utilizing a custom jest environment as well as Cloudflare's local tester: `wrangler`. Wrangler enables testing locally by running a proxy to wrap `localhost`. Testing can be done the following ways.
+- Manually by running `yarn start:cloud` to setup wrangler on `localhost:3000`
+- Automated tests by running `yarn test:cloud` to setup both a jest and wrangler environment and automatically test features
+
+## Deployment
+
+Functions will be deployed to Cloudlfare where they will be ran automatically when the appropriate route is hit. 
+
+## Miscellaneous
+- Caching: In order to speed up webpage requests, repeated GraphQL queries will be saved and pulled using Cloudflare's Cache API.
+
+## Scripts
+
+- `yarn start:cloud` (NODE_OPTIONS=--dns-result-order=ipv4first PORT=3001 npx wrangler pages dev --node-compat --proxy=3001 --port=3000 -- yarn start), script to start local wrangler environment
+  - `npx wrangler pages dev`: this basis of this command which starts a local instance of wrangler to test cloud functions
+  - `--node-compat`: wrangler option that enables compatibility with Node.js modules
+  - `--proxy:3001`: telling the proxy to listen on port 3001
+  - `--port=3000`: telling wrangler to run our proxy on port 3000
+  - `NODE_OPTIONS=--dns-result-order=ipv4first`: wrangler still serves to IPv4 which isn't compatible with Node 18 which default resolves to IPv6 so we need to specify to serve to IPv4
+  - `PORT-3001 --yarn start`: runs default yarn start on port 3001
+- `yarn test:cloud` (NODE_OPTIONS=--experimental-vm-modules yarn jest functions  --watch --config=functions/jest.config.json), script to test cloud functions with jest
+  - `NODE_OPTIONS=--experimental-vm-modules`: support for ES Modules and Web Assembly
+  - `--config=functions/jest.config.json`: specifying which config file to use
+
+  ## Additional Documents
+  - [Open Graph Protocol](https://ogp.me/)
+  - [Open Graph Image Generation](https://vercel.com/docs/concepts/functions/edge-functions/og-image-generation)
+  - [Cloudflare Workers](https://developers.cloudflare.com/workers/)
+  - [HTML Rewriter](https://developers.cloudflare.com/workers/runtime-apis/html-rewriter/)
+  - [Cache API](https://developers.cloudflare.com/workers/runtime-apis/cache/)

functions/[[index]].ts

@@ -0,0 +1,18 @@
+/* eslint-disable import/no-unused-modules */
+import { MetaTagInjector } from './components/metaTagInjector'
+
+export const onRequest: PagesFunction = async ({ request, next }) => {
+  const imageUri = new URL(request.url).origin + '/images/1200x630_Rich_Link_Preview_Image.png'
+  const data = {
+    title: 'Uniswap Interface',
+    image: imageUri,
+    url: request.url,
+    description: 'Swap or provide liquidity on the Uniswap Protocol',
+  }
+  const res = next()
+  try {
+    return new HTMLRewriter().on('head', new MetaTagInjector(data)).transform(await res)
+  } catch (e) {
+    return res
+  }
+}

functions/api/image/nfts/asset/[[index]].tsx

@@ -0,0 +1,71 @@
+/* eslint-disable import/no-unused-modules */
+import { ImageResponse } from '@vercel/og'
+import React from 'react'
+
+import { WATERMARK_URL } from '../../../../constants'
+import getAsset from '../../../../utils/getAsset'
+import getFont from '../../../../utils/getFont'
+import { getRequest } from '../../../../utils/getRequest'
+
+export const onRequest: PagesFunction = async ({ params, request }) => {
+  try {
+    const origin = new URL(request.url).origin
+    const { index } = params
+    const collectionAddress = index[0]?.toString()
+    const tokenId = index[1]?.toString()
+    const cacheUrl = origin + '/nfts/asset/' + collectionAddress + '/' + tokenId
+
+    const data = await getRequest(
+      cacheUrl,
+      () => getAsset(collectionAddress, tokenId, cacheUrl),
+      (data): data is NonNullable<Awaited<ReturnType<typeof getAsset>>> => Boolean(data.ogImage)
+    )
+
+    if (!data) {
+      return new Response('Asset not found.', { status: 404 })
+    }
+
+    const fontData = await getFont()
+
+    return new ImageResponse(
+      (
+        <div
+          style={{
+            display: 'flex',
+            alignItems: 'center',
+            justifyContent: 'center',
+            flexDirection: 'column',
+            width: '1200px',
+            height: '630px',
+          }}
+        >
+          <img src={data.ogImage} alt={data.title} width="1200px" />
+          <div
+            style={{
+              position: 'absolute',
+              bottom: '72px',
+              right: '72px',
+              display: 'flex',
+              gap: '24px',
+            }}
+          >
+            <img src={WATERMARK_URL} alt="Uniswap" height="72px" width="324px" />
+          </div>
+        </div>
+      ),
+      {
+        width: 1200,
+        height: 630,
+        fonts: [
+          {
+            name: 'Inter',
+            data: fontData,
+            style: 'normal',
+          },
+        ],
+      }
+    ) as Response
+  } catch (error: any) {
+    return new Response(error.message || error.toString(), { status: 500 })
+  }
+}

functions/api/image/nfts/asset/nftImage.test.ts

@@ -0,0 +1,20 @@
+const assetImageUrl = [
+  'http://127.0.0.1:3000/api/image/nfts/asset/0xed5af388653567af2f388e6224dc7c4b3241c544/804',
+  'http://127.0.0.1:3000/api/image/nfts/asset/0xb47e3cd837ddf8e4c57f05d70ab865de6e193bbb/3947',
+]
+
+test.each(assetImageUrl)('assetImageUrl', async (url) => {
+  const response = await fetch(new Request(url))
+  expect(response.status).toBe(200)
+  expect(response.headers.get('content-type')).toBe('image/png')
+})
+
+const invalidAssetImageUrl = [
+  'http://127.0.0.1:3000/api/image/nfts/asset/0xed5af388653567af2f388e6224dc7c4b3241c544/100000',
+  'http://127.0.0.1:3000/api/image/nfts/asset/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/44700',
+]
+
+test.each(invalidAssetImageUrl)('invalidAssetImageUrl', async (url) => {
+  const response = await fetch(new Request(url))
+  expect(response.status).toBe(404)
+})

functions/api/image/nfts/collection/[index].tsx

@@ -0,0 +1,117 @@
+/* eslint-disable import/no-unused-modules */
+import { ImageResponse } from '@vercel/og'
+import React from 'react'
+
+import { CHECK_URL, WATERMARK_URL } from '../../../../constants'
+import getCollection from '../../../../utils/getCollection'
+import getColor from '../../../../utils/getColor'
+import getFont from '../../../../utils/getFont'
+import { getRequest } from '../../../../utils/getRequest'
+
+export const onRequest: PagesFunction = async ({ params, request }) => {
+  try {
+    const origin = new URL(request.url).origin
+    const { index } = params
+    const collectionAddress = index?.toString()
+    const cacheUrl = origin + '/nfts/collection/' + collectionAddress
+
+    const data = await getRequest(
+      cacheUrl,
+      () => getCollection(collectionAddress, cacheUrl),
+      (data): data is NonNullable<Awaited<ReturnType<typeof getCollection>>> =>
+        Boolean(data.ogImage && data.name && data.isVerified)
+    )
+
+    if (!data) {
+      return new Response('Asset not found.', { status: 404 })
+    }
+
+    const [fontData, palette] = await Promise.all([getFont(), getColor(data.ogImage)])
+
+    // Split name into words to wrap them since satori does not support inline text wrapping
+    const words = data.name.split(' ')
+
+    return new ImageResponse(
+      (
+        <div
+          style={{
+            backgroundColor: 'black',
+            display: 'flex',
+            width: '1200px',
+            height: '630px',
+          }}
+        >
+          <div
+            style={{
+              display: 'flex',
+              alignItems: 'center',
+              backgroundColor: `rgba(${palette[0]}, ${palette[1]}, ${palette[2]}, 0.75)`,
+              padding: '72px',
+            }}
+          >
+            <div
+              style={{
+                display: 'flex',
+                flexDirection: 'row',
+                alignItems: 'flex-end',
+                gap: '48px',
+                width: '100%',
+              }}
+            >
+              <img
+                src={data.ogImage}
+                alt={data.name}
+                width="500px"
+                height="500px"
+                style={{
+                  borderRadius: '60px',
+                  objectFit: 'cover',
+                }}
+              />
+              <div
+                style={{
+                  display: 'flex',
+                  flexDirection: 'column',
+                  gap: '32px',
+                  width: '45%',
+                }}
+              >
+                <div
+                  style={{
+                    gap: '12px',
+                    fontSize: '72px',
+                    fontFamily: 'Inter',
+                    color: 'white',
+                    display: 'flex',
+                    flexDirection: 'row',
+                    alignItems: 'center',
+                    flexWrap: 'wrap',
+                  }}
+                >
+                  {words.map((word: string) => (
+                    <text key={word + index}>{word}</text>
+                  ))}
+                  {data.isVerified && <img src={CHECK_URL} height="54px" />}
+                </div>
+                <img src={WATERMARK_URL} alt="Uniswap" height="72px" width="324px" />
+              </div>
+            </div>
+          </div>
+        </div>
+      ),
+      {
+        width: 1200,
+        height: 630,
+        fonts: [
+          {
+            name: 'Inter',
+            data: fontData,
+            style: 'normal',
+          },
+        ],
+      }
+    ) as Response
+  } catch (error: any) {
+    return new Response(error.message || error.toString(), { status: 500 })
+  }
+}

functions/api/image/nfts/collection/collectionImage.test.ts

@@ -0,0 +1,20 @@
+const collectionImageUrl = [
+  'http://127.0.0.1:3000/api/image/nfts/collection/0xed5af388653567af2f388e6224dc7c4b3241c544',
+  'http://127.0.0.1:3000/api/image/nfts/collection/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d',
+  'http://127.0.0.1:3000/api/image/nfts/collection/0x49cf6f5d44e70224e2e23fdcdd2c053f30ada28b',
+]
+
+test.each(collectionImageUrl)('collectionImageUrl', async (url) => {
+  const response = await fetch(new Request(url))
+  expect(response.status).toBe(200)
+  expect(response.headers.get('content-type')).toBe('image/png')
+})
+
+const invalidCollectionImageUrl = [
+  'http://127.0.0.1:3000/api/image/nfts/collection/0xed5af388653567af2f388e6224dc7c4b3241c545',
+]
+
+test.each(invalidCollectionImageUrl)('invalidAssetImageUrl', async (url) => {
+  const response = await fetch(new Request(url))
+  expect(response.status).toBe(404)
+})

functions/api/image/tokens/[[index]].tsx

@@ -0,0 +1,173 @@
+/* eslint-disable import/no-unused-modules */
+import { ImageResponse } from '@vercel/og'
+import React from 'react'
+
+import { WATERMARK_URL } from '../../../constants'
+import getColor from '../../../utils/getColor'
+import getFont from '../../../utils/getFont'
+import getNetworkLogoUrl from '../../../utils/getNetworkLogoURL'
+import { getRequest } from '../../../utils/getRequest'
+import getToken from '../../../utils/getToken'
+
+export const onRequest: PagesFunction = async ({ params, request }) => {
+  try {
+    const origin = new URL(request.url).origin
+    const { index } = params
+    const networkName = String(index[0])
+    const tokenAddress = String(index[1])
+
+    const cacheUrl = origin + '/tokens/' + networkName + '/' + tokenAddress
+
+    const data = await getRequest(
+      cacheUrl,
+      () => getToken(networkName, tokenAddress, cacheUrl),
+      (data): data is NonNullable<Awaited<ReturnType<typeof getToken>>> => Boolean(data.symbol && data.name)
+    )
+
+    if (!data) {
+      return new Response('Asset not found.', { status: 404 })
+    }
+
+    const [fontData, palette] = await Promise.all([getFont(), getColor(data.ogImage)])
+
+    const networkLogo = getNetworkLogoUrl(networkName.toUpperCase())
+
+    // Capitalize name such that each word starts with a capital letter
+    let words = data.name.split(' ')
+    words = words.map((word) => word.charAt(0).toUpperCase() + word.slice(1).toLowerCase())
+    let name = words.join(' ')
+    name = name.trim()
+
+    return new ImageResponse(
+      (
+        <div
+          style={{
+            backgroundColor: 'black',
+            display: 'flex',
+            width: '1200px',
+            height: '630px',
+          }}
+        >
+          <div
+            style={{
+              display: 'flex',
+              backgroundColor: `rgba(${palette[0]}, ${palette[1]}, ${palette[2]})`,
+              alignItems: 'center',
+              height: '100%',
+              padding: '72px',
+            }}
+          >
+            <div
+              style={{
+                display: 'flex',
+                flexDirection: 'column',
+                justifyContent: 'space-between',
+                alignItems: 'flex-start',
+                width: '100%',
+                height: '100%',
+                color: 'white',
+              }}
+            >
+              {data.ogImage ? (
+                <img src={data.ogImage} width="144px" style={{ borderRadius: '100%' }}>
+                  {networkLogo != '' && (
+                    <img
+                      src={networkLogo}
+                      width="48px"
+                      style={{
+                        position: 'absolute',
+                        right: '2px',
+                        bottom: '0px',
+                        borderRadius: '100%',
+                      }}
+                    />
+                  )}
+                </img>
+              ) : (
+                <div
+                  style={{
+                    width: '144px',
+                    height: '144px',
+                    borderRadius: '100%',
+                    backgroundColor: 'rgba(255, 255, 255, 0.12)',
+                    display: 'flex',
+                    justifyContent: 'center',
+                    alignItems: 'center',
+                  }}
+                >
+                  <div
+                    style={{
+                      fontFamily: 'Inter',
+                      fontSize: '48px',
+                      lineHeight: '58px',
+                      color: 'white',
+                    }}
+                  >
+                    {data.name.slice(0, 3).toUpperCase()}
+                  </div>
+                  {networkLogo != '' && (
+                    <img
+                      src={networkLogo}
+                      width="48px"
+                      style={{
+                        position: 'absolute',
+                        right: '2px',
+                        bottom: '0px',
+                        borderRadius: '100%',
+                      }}
+                    />
+                  )}
+                </div>
+              )}
+              <div
+                style={{
+                  fontFamily: 'Inter',
+                  fontSize: '72px',
+                  lineHeight: '58px',
+                  marginLeft: '-5px',
+                  marginTop: '24px',
+                }}
+              >
+                {name}
+              </div>
+              <div
+                style={{
+                  display: 'flex',
+                  flexDirection: 'row',
+                  justifyContent: 'space-between',
+                  alignItems: 'flex-end',
+                  width: '100%',
+                }}
+              >
+                <div
+                  style={{
+                    fontFamily: 'Inter',
+                    fontSize: '168px',
+                    lineHeight: '133px',
+                    marginLeft: '-13px',
+                  }}
+                >
+                  {data.symbol}
+                </div>
+                <img src={WATERMARK_URL} alt="Uniswap" height="72px" width="324px" />
+              </div>
+            </div>
+          </div>
+        </div>
+      ),
+      {
+        width: 1200,
+        height: 630,
+        fonts: [
+          {
+            name: 'Inter',
+            data: fontData,
+            style: 'normal',
+          },
+        ],
+      }
+    ) as Response
+  } catch (error: any) {
+    return new Response(error.message || error.toString(), { status: 500 })
+  }
+}

functions/api/image/tokens/tokenImage.test.ts

@@ -0,0 +1,23 @@
+const tokenImageUrl = [
+  'http://127.0.0.1:3000/api/image/tokens/ethereum/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48',
+  'http://127.0.0.1:3000/api/image/tokens/ethereum/NATIVE',
+]
+
+test.each(tokenImageUrl)('tokenImageUrl', async (url) => {
+  const response = await fetch(new Request(url))
+  expect(response.status).toBe(200)
+  expect(response.headers.get('content-type')).toBe('image/png')
+})
+
+const invalidTokenImageUrl = [
+  'http://127.0.0.1:3000/api/image/tokens/ethereum/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb49',
+  'http://127.0.0.1:3000/api/image/tokens/ethereum',
+  'http://127.0.0.1:3000/api/image/tokens/ethereun',
+  'http://127.0.0.1:3000/api/image/tokens/ethereum/0x0',
+  'http://127.0.0.1:3000/api/image/tokens/potato/?potato=1',
+]
+
+test.each(invalidTokenImageUrl)('invalidAssetImageUrl', async (url) => {
+  const response = await fetch(new Request(url))
+  expect(response.status).toBe(404)
+})

functions/babel.config.js

@@ -0,0 +1 @@
+export const presets = ['@babel/preset-env']

functions/client.ts

@@ -0,0 +1,20 @@
+import { ApolloClient, InMemoryCache } from '@apollo/client'
+const GRAPHQL_ENDPOINT = 'https://api.uniswap.org/v1/graphql'
+
+//TODO: Figure out how to make ApolloClient global variable
+export default new ApolloClient({
+  connectToDevTools: true,
+  uri: GRAPHQL_ENDPOINT,
+  headers: {
+    'Content-Type': 'application/json',
+    Origin: 'https://app.uniswap.org',
+    'User-Agent':
+      'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.5735.110 Safari/537.36',
+  },
+  cache: new InMemoryCache(),
+  defaultOptions: {
+    watchQuery: {
+      fetchPolicy: 'cache-first',
+    },
+  },
+})

functions/components/metaTagInjector.ts

@@ -0,0 +1,42 @@
+type MetaTagInjectorInput = {
+  title: string
+  image?: string
+  url: string
+  description?: string
+}
+
+/**
+ * Listener class for Cloudflare's HTMLRewriter {@link https://developers.cloudflare.com/workers/runtime-apis/html-rewriter}
+ * to inject meta tags into the <head> of an HTML document.
+ */
+export class MetaTagInjector implements HTMLRewriterElementContentHandlers {
+  constructor(private input: MetaTagInjectorInput) {}
+
+  append(element: Element, property: string, content: string) {
+    element.append(`<meta property="${property}" content="${content}"/>`, { html: true })
+  }
+
+  element(element: Element) {
+    //Open Graph Tags
+    this.append(element, 'og:title', this.input.title)
+    if (this.input.description) {
+      this.append(element, 'og:description', this.input.description)
+    }
+    if (this.input.image) {
+      this.append(element, 'og:image', this.input.image)
+      this.append(element, 'og:image:width', '1200')
+      this.append(element, 'og:image:height', '630')
+      this.append(element, 'og:image:alt', this.input.title)
+    }
+    this.append(element, 'og:type', 'website')
+    this.append(element, 'og:url', this.input.url)
+
+    //Twitter Tags
+    this.append(element, 'twitter:card', 'summary_large_image')
+    this.append(element, 'twitter:title', this.input.title)
+    if (this.input.image) {
+      this.append(element, 'twitter:image', this.input.image)
+      this.append(element, 'twitter:image:alt', this.input.title)
+    }
+  }
+}

functions/constants.ts

@@ -0,0 +1,76 @@
+export const WATERMARK_URL = 'https://app.uniswap.org/images/324x74_App_Watermark.png'
+export const CHECK_URL = 'https://app.uniswap.org/images/54x54_Verified_Check.svg'
+
+export const DEFAULT_COLOR = [35, 43, 43]
+
+export const predefinedTokenColors: { [key: string]: number[] } = {
+  // old WBTC
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599/logo.png':
+    [240, 146, 65],
+  // new WBTC
+  'https://assets.coingecko.com/coins/images/7598/large/wrapped_bitcoin_wbtc.png?1548822744': [240, 146, 65],
+  // DAI
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0x6B175474E89094C44Da98b954EedeAC495271d0F/logo.png':
+    [250, 176, 27],
+  // UNI
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984/logo.png':
+    [230, 53, 140],
+  // BUSD
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0x4Fabb145d64652a948d72533023f6E7A623C7C53/logo.png':
+    [239, 186, 9],
+  // AI-X
+  'https://s2.coinmarketcap.com/static/img/coins/64x64/26984.png': [41, 161, 241],
+  // ETH
+  'https://token-icons.s3.amazonaws.com/eth.png': [73, 112, 213],
+  // HARRYPOTTERSHIBAINUBITCOIN
+  'https://assets.coingecko.com/coins/images/30323/large/hpos10i_logo_casino_night-dexview.png?1684117567': [
+    222, 49, 16,
+  ],
+  // PEPE
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0x6982508145454Ce325dDbE47a25d4ec3d2311933/logo.png':
+    [62, 174, 20],
+  // Unibot V2
+  'https://s2.coinmarketcap.com/static/img/coins/64x64/25436.png': [74, 10, 79],
+  // UNIBOT v1
+  'https://assets.coingecko.com/coins/images/30462/small/logonoline_%281%29.png?1687510315': [74, 10, 79],
+  // USDC
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48/logo.png':
+    [0, 102, 217],
+  // HEX
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0x2b591e99afE9f32eAA6214f7B7629768c40Eeb39/logo.png':
+    [249, 63, 140],
+  // MONG
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0x1ce270557C1f68Cfb577b856766310Bf8B47FD9C/logo.png':
+    [169, 109, 255],
+  // ARB
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0xB50721BCf8d664c30412Cfbc6cf7a15145234ad1/logo.png':
+    [41, 161, 241],
+  // PSYOP
+  'https://s2.coinmarketcap.com/static/img/coins/64x64/25422.png': [232, 143, 0],
+  // MATIC
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0x7D1AfA7B718fb893dB30A3aBc0Cfc608AaCfeBB0/logo.png':
+    [169, 109, 255],
+  // TURBO
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0xA35923162C49cF95e6BF26623385eb431ad920D3/logo.png':
+    [189, 110, 41],
+  // AIDOGE
+  'https://assets.coingecko.com/coins/images/29852/large/photo_2023-04-18_14-25-28.jpg?1681799160': [41, 161, 241],
+  // SIMPSON
+  'https://assets.coingecko.com/coins/images/30243/large/1111.png?1683692033': [232, 143, 0],
+  // OX
+  'https://assets.coingecko.com/coins/images/30604/large/Logo2.png?1685522119': [41, 89, 217],
+  // ANGLE
+  'https://assets.coingecko.com/coins/images/19060/large/ANGLE_Token-light.png?1666774221': [255, 85, 85],
+  // APE
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0x4d224452801ACEd8B2F0aebE155379bb5D594381/logo.png':
+    [5, 74, 169],
+  // GUSD
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0x056Fd409E1d7A124BD7017459dFEa2F387b6d5Cd/logo.png':
+    [0, 164, 189],
+  // OGN
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0x8207c1FfC5B6804F6024322CcF34F29c3541Ae26/logo.png':
+    [5, 74, 169],
+  // RPL
+  'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/ethereum/assets/0xD33526068D116cE69F19A9ee46F0bd304F21A51f/logo.png':
+    [255, 123, 79],
+}

functions/default.test.ts

@@ -0,0 +1,22 @@
+const defaultUrls = ['http://127.0.0.1:3000/', 'http://127.0.0.1:3000/swap', 'http://127.0.0.1:3000/pools']
+
+test.each(defaultUrls)('should inject metadata for valid collections', async (defaultUrl) => {
+  const body = await fetch(new Request(defaultUrl)).then((res) => res.text())
+  expect(body).toContain(`<meta property="og:title" content="Uniswap Interface"/>`)
+  expect(body).toContain(
+    `<meta property="og:description" content="Swap or provide liquidity on the Uniswap Protocol"/>`
+  )
+  expect(body).toContain(
+    `<meta property="og:image" content="http://127.0.0.1:3000/images/1200x630_Rich_Link_Preview_Image.png"/>`
+  )
+  expect(body).toContain(`<meta property="og:image:width" content="1200"/>`)
+  expect(body).toContain(`<meta property="og:image:height" content="630"/>`)
+  expect(body).toContain(`<meta property="og:type" content="website"/>`)
+  expect(body).toContain(`<meta property="og:image:alt" content="Uniswap Interface"/>`)
+  expect(body).toContain(`<meta property="twitter:card" content="summary_large_image"/>`)
+  expect(body).toContain(`<meta property="twitter:title" content="Uniswap Interface"/>`)
+  expect(body).toContain(
+    `<meta property="twitter:image" content="http://127.0.0.1:3000/images/1200x630_Rich_Link_Preview_Image.png"/>`
+  )
+  expect(body).toContain(`<meta property="twitter:image:alt" content="Uniswap Interface"/>`)
+})

functions/global-setup.ts

@@ -0,0 +1,19 @@
+import { setup } from 'jest-dev-server'
+
+module.exports = async function globalSetup() {
+  globalThis.servers = await setup({
+    command: `yarn start:cloud`,
+    port: 3000,
+    launchTimeout: 80000,
+  })
+  // Wait for wrangler to return a request before running tests
+  for (let i = 0; i < 3; i++) {
+    const res = await fetch(new Request('http://127.0.0.1:3000/tokens/ethereum/NATIVE'))
+    if (res.ok) {
+      return
+    }
+    // Set timeout to make sure the server isn't flooded with requests if wrangler is not running
+    await new Promise((resolve) => setTimeout(resolve, 500 * (i + 1)))
+  }
+  throw new Error('Failed to start server')
+}

functions/global-teardown.ts

@@ -0,0 +1,5 @@
+import { teardown } from 'jest-dev-server'
+
+module.exports = async function globalTeardown() {
+  await teardown(globalThis.servers)
+}

functions/global.d.ts

@@ -0,0 +1,6 @@
+import { setup } from 'jest-dev-server'
+
+declare global {
+  // eslint-disable-next-line no-var
+  var servers: Awaited<ReturnType<typeof setup>>
+}

functions/jest.config.json

@@ -0,0 +1,11 @@
+{
+  "globalSetup": "<rootDir>/global-setup.ts",
+  "globalTeardown": "<rootDir>/global-teardown.ts",
+  "preset": "ts-jest",
+  "transform": {
+    "'^.+\\.(ts|tsx)?$'": "ts-jest",
+    "^.+\\.(js|jsx)$": "babel-jest"
+  },
+  "testTimeout": 360000,
+  "cacheDirectory": "../node_modules/.cache/cloud-jest"
+}

functions/nfts/asset/[[index]].ts

@@ -0,0 +1,15 @@
+/* eslint-disable import/no-unused-modules */
+import getAsset from '../../utils/getAsset'
+import { getMetadataRequest } from '../../utils/getRequest'
+
+export const onRequest: PagesFunction = async ({ params, request, next }) => {
+  const res = next()
+  try {
+    const { index } = params
+    const collectionAddress = index[0]?.toString()
+    const tokenId = index[1]?.toString()
+    return getMetadataRequest(res, request.url, () => getAsset(collectionAddress, tokenId, request.url))
+  } catch (e) {
+    return res
+  }
+}

functions/nfts/asset/__snapshots__/nft.test.ts.snap

@@ -0,0 +1,394 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`should inject metadata for valid assets 1`] = `
+"<!DOCTYPE html>
+<html translate="no">
+  <head>
+    <meta charset="utf-8" />
+
+    <title>Uniswap Interface</title>
+
+    <!--
+       will be replaced with the URL of the \`public\` folder during build.
+      Only files inside the \`public\` folder can be referenced from the HTML.
+    -->
+    <link rel="shortcut icon" type="image/png" href="/favicon.png" />
+    <link rel="apple-touch-icon" sizes="192x192" href="/images/192x192_App_Icon.png" />
+    <link rel="apple-touch-icon" sizes="512x512" href="/images/512x512_App_Icon.png" />
+
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+    <meta name="theme-color" content="#FC72FF" />
+    <meta
+      http-equiv="Content-Security-Policy"
+      
+        content="script-src 'self' 'unsafe-inline'"
+      
+    />
+
+    <!-- 
+      Apple Smart App Banner for Safari on iOS
+      https://developer.apple.com/documentation/webkit/promoting_apps_with_smart_app_banners
+     -->
+    <meta name="apple-itunes-app" content="app-id=6443944476">
+
+    <!--
+      manifest.json provides metadata used when the app is installed as a PWA.
+      See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="/manifest.json" />
+
+    <link rel="preload" href="/fonts/Inter-roman.var.woff2" as="font" type="font/woff2" crossorigin />
+
+    <style>
+      * {
+        font-family: 'Inter', sans-serif;
+        box-sizing: border-box;
+      }
+
+      /**
+          Explicitly load Inter var from public/ so it does not block LCP's critical path.
+        */
+      @font-face {
+        font-family: 'Inter custom';
+        font-weight: 100 900;
+        font-style: normal;
+        font-display: block;
+        font-named-instance: 'Regular';
+        src: url(/fonts/Inter-roman.var.woff2) format('woff2 supports variations(gvar)'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2-variations'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2');
+      }
+
+      @supports (font-variation-settings: normal) {
+        * {
+          font-family: 'Inter custom', sans-serif;
+        }
+      }
+
+      html,
+      body {
+        margin: 0;
+        padding: 0;
+      }
+
+      button {
+        user-select: none;
+      }
+
+      html {
+        font-size: 16px;
+        font-variant: none;
+        font-smooth: always;
+        -webkit-font-smoothing: antialiased;
+        -moz-osx-font-smoothing: grayscale;
+        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+      }
+
+      /* Use this to apply network-specific gradient backgrounds, in RadialGradientByChainUpdater.ts */
+      #background-radial-gradient {
+        position: fixed;
+        top: 0;
+        left: 0;
+        right: 0;
+        pointer-events: none;
+        width: 200vw;
+        height: 200vh;
+        transform: translate(-50vw, -100vh);
+        z-index: -1;
+      }
+
+      html,
+      body,
+      #root {
+        min-height: 100%;
+      }
+
+      @media (prefers-color-scheme: dark) {
+        html {
+          background: linear-gradient(180deg, #202738 0%, #070816 100%);
+        }
+      }
+
+      @media (prefers-color-scheme: light) {
+        html {
+          background: radial-gradient(100% 100% at 50% 0%, rgba(255, 184, 226, 0.51) 0%, rgba(255, 255, 255, 0) 100%), #FFFFFF
+        }
+      }
+    </style>
+  <script defer src="/static/js/bundle.js"></script><meta property="og:title" content="Azuki #2550"/><meta property="og:image" content="http://127.0.0.1:3000/api/image/nfts/asset/0xed5af388653567af2f388e6224dc7c4b3241c544/2550"/><meta property="og:image:width" content="1200"/><meta property="og:image:height" content="630"/><meta property="og:image:alt" content="Azuki #2550"/><meta property="og:type" content="website"/><meta property="og:url" content="http://127.0.0.1:3000/nfts/asset/0xed5af388653567af2f388e6224dc7c4b3241c544/2550"/><meta property="twitter:card" content="summary_large_image"/><meta property="twitter:title" content="Azuki #2550"/><meta property="twitter:image" content="http://127.0.0.1:3000/api/image/nfts/asset/0xed5af388653567af2f388e6224dc7c4b3241c544/2550"/><meta property="twitter:image:alt" content="Azuki #2550"/></head>
+
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+
+    <div id="root">
+      <!-- Triggers the font to load immediately and then is replaced by the app -->
+      <div>&emsp;</div>
+    </div>
+
+    <div id="background-radial-gradient"></div>
+  </body>
+</html>
+"
+`;
+
+exports[`should inject metadata for valid assets 2`] = `
+"<!DOCTYPE html>
+<html translate="no">
+  <head>
+    <meta charset="utf-8" />
+
+    <title>Uniswap Interface</title>
+
+    <!--
+       will be replaced with the URL of the \`public\` folder during build.
+      Only files inside the \`public\` folder can be referenced from the HTML.
+    -->
+    <link rel="shortcut icon" type="image/png" href="/favicon.png" />
+    <link rel="apple-touch-icon" sizes="192x192" href="/images/192x192_App_Icon.png" />
+    <link rel="apple-touch-icon" sizes="512x512" href="/images/512x512_App_Icon.png" />
+
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+    <meta name="theme-color" content="#FC72FF" />
+    <meta
+      http-equiv="Content-Security-Policy"
+      
+        content="script-src 'self' 'unsafe-inline'"
+      
+    />
+
+    <!-- 
+      Apple Smart App Banner for Safari on iOS
+      https://developer.apple.com/documentation/webkit/promoting_apps_with_smart_app_banners
+     -->
+    <meta name="apple-itunes-app" content="app-id=6443944476">
+
+    <!--
+      manifest.json provides metadata used when the app is installed as a PWA.
+      See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="/manifest.json" />
+
+    <link rel="preload" href="/fonts/Inter-roman.var.woff2" as="font" type="font/woff2" crossorigin />
+
+    <style>
+      * {
+        font-family: 'Inter', sans-serif;
+        box-sizing: border-box;
+      }
+
+      /**
+          Explicitly load Inter var from public/ so it does not block LCP's critical path.
+        */
+      @font-face {
+        font-family: 'Inter custom';
+        font-weight: 100 900;
+        font-style: normal;
+        font-display: block;
+        font-named-instance: 'Regular';
+        src: url(/fonts/Inter-roman.var.woff2) format('woff2 supports variations(gvar)'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2-variations'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2');
+      }
+
+      @supports (font-variation-settings: normal) {
+        * {
+          font-family: 'Inter custom', sans-serif;
+        }
+      }
+
+      html,
+      body {
+        margin: 0;
+        padding: 0;
+      }
+
+      button {
+        user-select: none;
+      }
+
+      html {
+        font-size: 16px;
+        font-variant: none;
+        font-smooth: always;
+        -webkit-font-smoothing: antialiased;
+        -moz-osx-font-smoothing: grayscale;
+        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+      }
+
+      /* Use this to apply network-specific gradient backgrounds, in RadialGradientByChainUpdater.ts */
+      #background-radial-gradient {
+        position: fixed;
+        top: 0;
+        left: 0;
+        right: 0;
+        pointer-events: none;
+        width: 200vw;
+        height: 200vh;
+        transform: translate(-50vw, -100vh);
+        z-index: -1;
+      }
+
+      html,
+      body,
+      #root {
+        min-height: 100%;
+      }
+
+      @media (prefers-color-scheme: dark) {
+        html {
+          background: linear-gradient(180deg, #202738 0%, #070816 100%);
+        }
+      }
+
+      @media (prefers-color-scheme: light) {
+        html {
+          background: radial-gradient(100% 100% at 50% 0%, rgba(255, 184, 226, 0.51) 0%, rgba(255, 255, 255, 0) 100%), #FFFFFF
+        }
+      }
+    </style>
+  <script defer src="/static/js/bundle.js"></script><meta property="og:title" content="Bored Ape Yacht Club #3735"/><meta property="og:image" content="http://127.0.0.1:3000/api/image/nfts/asset/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/3735"/><meta property="og:image:width" content="1200"/><meta property="og:image:height" content="630"/><meta property="og:image:alt" content="Bored Ape Yacht Club #3735"/><meta property="og:type" content="website"/><meta property="og:url" content="http://127.0.0.1:3000/nfts/asset/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/3735"/><meta property="twitter:card" content="summary_large_image"/><meta property="twitter:title" content="Bored Ape Yacht Club #3735"/><meta property="twitter:image" content="http://127.0.0.1:3000/api/image/nfts/asset/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/3735"/><meta property="twitter:image:alt" content="Bored Ape Yacht Club #3735"/></head>
+
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+
+    <div id="root">
+      <!-- Triggers the font to load immediately and then is replaced by the app -->
+      <div>&emsp;</div>
+    </div>
+
+    <div id="background-radial-gradient"></div>
+  </body>
+</html>
+"
+`;
+
+exports[`should inject metadata for valid assets 3`] = `
+"<!DOCTYPE html>
+<html translate="no">
+  <head>
+    <meta charset="utf-8" />
+
+    <title>Uniswap Interface</title>
+
+    <!--
+       will be replaced with the URL of the \`public\` folder during build.
+      Only files inside the \`public\` folder can be referenced from the HTML.
+    -->
+    <link rel="shortcut icon" type="image/png" href="/favicon.png" />
+    <link rel="apple-touch-icon" sizes="192x192" href="/images/192x192_App_Icon.png" />
+    <link rel="apple-touch-icon" sizes="512x512" href="/images/512x512_App_Icon.png" />
+
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+    <meta name="theme-color" content="#FC72FF" />
+    <meta
+      http-equiv="Content-Security-Policy"
+      
+        content="script-src 'self' 'unsafe-inline'"
+      
+    />
+
+    <!-- 
+      Apple Smart App Banner for Safari on iOS
+      https://developer.apple.com/documentation/webkit/promoting_apps_with_smart_app_banners
+     -->
+    <meta name="apple-itunes-app" content="app-id=6443944476">
+
+    <!--
+      manifest.json provides metadata used when the app is installed as a PWA.
+      See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="/manifest.json" />
+
+    <link rel="preload" href="/fonts/Inter-roman.var.woff2" as="font" type="font/woff2" crossorigin />
+
+    <style>
+      * {
+        font-family: 'Inter', sans-serif;
+        box-sizing: border-box;
+      }
+
+      /**
+          Explicitly load Inter var from public/ so it does not block LCP's critical path.
+        */
+      @font-face {
+        font-family: 'Inter custom';
+        font-weight: 100 900;
+        font-style: normal;
+        font-display: block;
+        font-named-instance: 'Regular';
+        src: url(/fonts/Inter-roman.var.woff2) format('woff2 supports variations(gvar)'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2-variations'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2');
+      }
+
+      @supports (font-variation-settings: normal) {
+        * {
+          font-family: 'Inter custom', sans-serif;
+        }
+      }
+
+      html,
+      body {
+        margin: 0;
+        padding: 0;
+      }
+
+      button {
+        user-select: none;
+      }
+
+      html {
+        font-size: 16px;
+        font-variant: none;
+        font-smooth: always;
+        -webkit-font-smoothing: antialiased;
+        -moz-osx-font-smoothing: grayscale;
+        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+      }
+
+      /* Use this to apply network-specific gradient backgrounds, in RadialGradientByChainUpdater.ts */
+      #background-radial-gradient {
+        position: fixed;
+        top: 0;
+        left: 0;
+        right: 0;
+        pointer-events: none;
+        width: 200vw;
+        height: 200vh;
+        transform: translate(-50vw, -100vh);
+        z-index: -1;
+      }
+
+      html,
+      body,
+      #root {
+        min-height: 100%;
+      }
+
+      @media (prefers-color-scheme: dark) {
+        html {
+          background: linear-gradient(180deg, #202738 0%, #070816 100%);
+        }
+      }
+
+      @media (prefers-color-scheme: light) {
+        html {
+          background: radial-gradient(100% 100% at 50% 0%, rgba(255, 184, 226, 0.51) 0%, rgba(255, 255, 255, 0) 100%), #FFFFFF
+        }
+      }
+    </style>
+  <script defer src="/static/js/bundle.js"></script><meta property="og:title" content="CryptoPunk #3947"/><meta property="og:image" content="http://127.0.0.1:3000/api/image/nfts/asset/0xb47e3cd837ddf8e4c57f05d70ab865de6e193bbb/3947"/><meta property="og:image:width" content="1200"/><meta property="og:image:height" content="630"/><meta property="og:image:alt" content="CryptoPunk #3947"/><meta property="og:type" content="website"/><meta property="og:url" content="http://127.0.0.1:3000/nfts/asset/0xb47e3cd837ddf8e4c57f05d70ab865de6e193bbb/3947"/><meta property="twitter:card" content="summary_large_image"/><meta property="twitter:title" content="CryptoPunk #3947"/><meta property="twitter:image" content="http://127.0.0.1:3000/api/image/nfts/asset/0xb47e3cd837ddf8e4c57f05d70ab865de6e193bbb/3947"/><meta property="twitter:image:alt" content="CryptoPunk #3947"/></head>
+
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+
+    <div id="root">
+      <!-- Triggers the font to load immediately and then is replaced by the app -->
+      <div>&emsp;</div>
+    </div>
+
+    <div id="background-radial-gradient"></div>
+  </body>
+</html>
+"
+`;

functions/nfts/asset/nft.test.ts

@@ -0,0 +1,62 @@
+const assets = [
+  {
+    address: '0xed5af388653567af2f388e6224dc7c4b3241c544',
+    assetId: '2550',
+    collectionName: 'Azuki',
+    image: 'http://127.0.0.1:3000/api/image/nfts/asset/0xed5af388653567af2f388e6224dc7c4b3241c544/2550',
+  },
+  {
+    address: '0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d',
+    assetId: '3735',
+    collectionName: 'Bored Ape Yacht Club',
+    image: 'http://127.0.0.1:3000/api/image/nfts/asset/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/3735',
+  },
+  {
+    address: '0xb47e3cd837ddf8e4c57f05d70ab865de6e193bbb',
+    assetId: '3947',
+    collectionName: 'CryptoPunk',
+    image: 'http://127.0.0.1:3000/api/image/nfts/asset/0xb47e3cd837ddf8e4c57f05d70ab865de6e193bbb/3947',
+  },
+]
+
+test.each(assets)('should inject metadata for valid assets', async (nft) => {
+  const url = 'http://127.0.0.1:3000/nfts/asset/' + nft.address + '/' + nft.assetId
+  const body = await fetch(new Request(url)).then((res) => res.text())
+  expect(body).toMatchSnapshot()
+  expect(body).toContain(`<meta property="og:title" content="${nft.collectionName} #${nft.assetId}"/>`)
+  expect(body).not.toContain(`<meta property="og:description"`)
+  expect(body).toContain(`<meta property="og:image" content="${nft.image}"/>`)
+  expect(body).toContain(`<meta property="og:image:width" content="1200"/>`)
+  expect(body).toContain(`<meta property="og:image:height" content="630"/>`)
+  expect(body).toContain(`<meta property="og:type" content="website"/>`)
+  expect(body).toContain(`<meta property="og:url" content="${url}"/>`)
+  expect(body).toContain(`<meta property="og:image:alt" content="${nft.collectionName} #${nft.assetId}"/>`)
+  expect(body).toContain(`<meta property="twitter:card" content="summary_large_image"/>`)
+  expect(body).toContain(`<meta property="twitter:title" content="${nft.collectionName} #${nft.assetId}"/>`)
+  expect(body).toContain(`<meta property="twitter:image" content="${nft.image}"/>`)
+  expect(body).toContain(`<meta property="twitter:image:alt" content="${nft.collectionName} #${nft.assetId}"/>`)
+})
+
+const invalidAssets = [
+  'http://127.0.0.1:3000/nfts/asset/0xed5af388653567af2f388e6224dc7c4b3241c544/100000',
+  'http://127.0.0.1:3000/nfts/asset/0xed5af388653567af2f388e6224dc7c4b3241c544',
+  'http://127.0.0.1:3000/nfts/asset/0xed5af388653567af2f388e6224dc7c4b3241c545',
+  'http://127.0.0.1:3000/nfts/asset/0xed5af388653567af2f388e6224dc7c4b3241c544/-1',
+  'http://127.0.0.1:3000/nfts/asset/0xed5af388653567af2f388e6224dc7c4b3241c544//',
+  'http://127.0.0.1:3000/nfts/asset/0xed5af388653567af2f388e6224dc7c4b3241c544//2550',
+]
+
+test.each(invalidAssets)('should not inject metadata for invalid asset calls', async (url) => {
+  const body = await fetch(new Request(url)).then((res) => res.text())
+  expect(body).not.toContain('og:title')
+  expect(body).not.toContain('og:image')
+  expect(body).not.toContain('og:image:width')
+  expect(body).not.toContain('og:image:height')
+  expect(body).not.toContain('og:type')
+  expect(body).not.toContain('og:url')
+  expect(body).not.toContain('og:image:alt')
+  expect(body).not.toContain('twitter:card')
+  expect(body).not.toContain('twitter:title')
+  expect(body).not.toContain('twitter:image')
+  expect(body).not.toContain('twitter:image:alt')
+})

functions/nfts/collection/[index].ts

@@ -0,0 +1,14 @@
+/* eslint-disable import/no-unused-modules */
+import getCollection from '../../utils/getCollection'
+import { getMetadataRequest } from '../../utils/getRequest'
+
+export const onRequest: PagesFunction = async ({ params, request, next }) => {
+  const res = next()
+  try {
+    const { index } = params
+    const collectionAddress = index?.toString()
+    return getMetadataRequest(res, request.url, () => getCollection(collectionAddress, request.url))
+  } catch (e) {
+    return res
+  }
+}

functions/nfts/collection/__snapshots__/collection.test.ts.snap

@@ -0,0 +1,394 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`should inject metadata for valid collections 1`] = `
+"<!DOCTYPE html>
+<html translate="no">
+  <head>
+    <meta charset="utf-8" />
+
+    <title>Uniswap Interface</title>
+
+    <!--
+       will be replaced with the URL of the \`public\` folder during build.
+      Only files inside the \`public\` folder can be referenced from the HTML.
+    -->
+    <link rel="shortcut icon" type="image/png" href="/favicon.png" />
+    <link rel="apple-touch-icon" sizes="192x192" href="/images/192x192_App_Icon.png" />
+    <link rel="apple-touch-icon" sizes="512x512" href="/images/512x512_App_Icon.png" />
+
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+    <meta name="theme-color" content="#FC72FF" />
+    <meta
+      http-equiv="Content-Security-Policy"
+      
+        content="script-src 'self' 'unsafe-inline'"
+      
+    />
+
+    <!-- 
+      Apple Smart App Banner for Safari on iOS
+      https://developer.apple.com/documentation/webkit/promoting_apps_with_smart_app_banners
+     -->
+    <meta name="apple-itunes-app" content="app-id=6443944476">
+
+    <!--
+      manifest.json provides metadata used when the app is installed as a PWA.
+      See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="/manifest.json" />
+
+    <link rel="preload" href="/fonts/Inter-roman.var.woff2" as="font" type="font/woff2" crossorigin />
+
+    <style>
+      * {
+        font-family: 'Inter', sans-serif;
+        box-sizing: border-box;
+      }
+
+      /**
+          Explicitly load Inter var from public/ so it does not block LCP's critical path.
+        */
+      @font-face {
+        font-family: 'Inter custom';
+        font-weight: 100 900;
+        font-style: normal;
+        font-display: block;
+        font-named-instance: 'Regular';
+        src: url(/fonts/Inter-roman.var.woff2) format('woff2 supports variations(gvar)'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2-variations'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2');
+      }
+
+      @supports (font-variation-settings: normal) {
+        * {
+          font-family: 'Inter custom', sans-serif;
+        }
+      }
+
+      html,
+      body {
+        margin: 0;
+        padding: 0;
+      }
+
+      button {
+        user-select: none;
+      }
+
+      html {
+        font-size: 16px;
+        font-variant: none;
+        font-smooth: always;
+        -webkit-font-smoothing: antialiased;
+        -moz-osx-font-smoothing: grayscale;
+        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+      }
+
+      /* Use this to apply network-specific gradient backgrounds, in RadialGradientByChainUpdater.ts */
+      #background-radial-gradient {
+        position: fixed;
+        top: 0;
+        left: 0;
+        right: 0;
+        pointer-events: none;
+        width: 200vw;
+        height: 200vh;
+        transform: translate(-50vw, -100vh);
+        z-index: -1;
+      }
+
+      html,
+      body,
+      #root {
+        min-height: 100%;
+      }
+
+      @media (prefers-color-scheme: dark) {
+        html {
+          background: linear-gradient(180deg, #202738 0%, #070816 100%);
+        }
+      }
+
+      @media (prefers-color-scheme: light) {
+        html {
+          background: radial-gradient(100% 100% at 50% 0%, rgba(255, 184, 226, 0.51) 0%, rgba(255, 255, 255, 0) 100%), #FFFFFF
+        }
+      }
+    </style>
+  <script defer src="/static/js/bundle.js"></script><meta property="og:title" content="Azuki on Uniswap"/><meta property="og:image" content="http://127.0.0.1:3000/api/image/nfts/collection/0xed5af388653567af2f388e6224dc7c4b3241c544"/><meta property="og:image:width" content="1200"/><meta property="og:image:height" content="630"/><meta property="og:image:alt" content="Azuki on Uniswap"/><meta property="og:type" content="website"/><meta property="og:url" content="http://127.0.0.1:3000/nfts/collection/0xed5af388653567af2f388e6224dc7c4b3241c544"/><meta property="twitter:card" content="summary_large_image"/><meta property="twitter:title" content="Azuki on Uniswap"/><meta property="twitter:image" content="http://127.0.0.1:3000/api/image/nfts/collection/0xed5af388653567af2f388e6224dc7c4b3241c544"/><meta property="twitter:image:alt" content="Azuki on Uniswap"/></head>
+
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+
+    <div id="root">
+      <!-- Triggers the font to load immediately and then is replaced by the app -->
+      <div>&emsp;</div>
+    </div>
+
+    <div id="background-radial-gradient"></div>
+  </body>
+</html>
+"
+`;
+
+exports[`should inject metadata for valid collections 2`] = `
+"<!DOCTYPE html>
+<html translate="no">
+  <head>
+    <meta charset="utf-8" />
+
+    <title>Uniswap Interface</title>
+
+    <!--
+       will be replaced with the URL of the \`public\` folder during build.
+      Only files inside the \`public\` folder can be referenced from the HTML.
+    -->
+    <link rel="shortcut icon" type="image/png" href="/favicon.png" />
+    <link rel="apple-touch-icon" sizes="192x192" href="/images/192x192_App_Icon.png" />
+    <link rel="apple-touch-icon" sizes="512x512" href="/images/512x512_App_Icon.png" />
+
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+    <meta name="theme-color" content="#FC72FF" />
+    <meta
+      http-equiv="Content-Security-Policy"
+      
+        content="script-src 'self' 'unsafe-inline'"
+      
+    />
+
+    <!-- 
+      Apple Smart App Banner for Safari on iOS
+      https://developer.apple.com/documentation/webkit/promoting_apps_with_smart_app_banners
+     -->
+    <meta name="apple-itunes-app" content="app-id=6443944476">
+
+    <!--
+      manifest.json provides metadata used when the app is installed as a PWA.
+      See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="/manifest.json" />
+
+    <link rel="preload" href="/fonts/Inter-roman.var.woff2" as="font" type="font/woff2" crossorigin />
+
+    <style>
+      * {
+        font-family: 'Inter', sans-serif;
+        box-sizing: border-box;
+      }
+
+      /**
+          Explicitly load Inter var from public/ so it does not block LCP's critical path.
+        */
+      @font-face {
+        font-family: 'Inter custom';
+        font-weight: 100 900;
+        font-style: normal;
+        font-display: block;
+        font-named-instance: 'Regular';
+        src: url(/fonts/Inter-roman.var.woff2) format('woff2 supports variations(gvar)'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2-variations'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2');
+      }
+
+      @supports (font-variation-settings: normal) {
+        * {
+          font-family: 'Inter custom', sans-serif;
+        }
+      }
+
+      html,
+      body {
+        margin: 0;
+        padding: 0;
+      }
+
+      button {
+        user-select: none;
+      }
+
+      html {
+        font-size: 16px;
+        font-variant: none;
+        font-smooth: always;
+        -webkit-font-smoothing: antialiased;
+        -moz-osx-font-smoothing: grayscale;
+        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+      }
+
+      /* Use this to apply network-specific gradient backgrounds, in RadialGradientByChainUpdater.ts */
+      #background-radial-gradient {
+        position: fixed;
+        top: 0;
+        left: 0;
+        right: 0;
+        pointer-events: none;
+        width: 200vw;
+        height: 200vh;
+        transform: translate(-50vw, -100vh);
+        z-index: -1;
+      }
+
+      html,
+      body,
+      #root {
+        min-height: 100%;
+      }
+
+      @media (prefers-color-scheme: dark) {
+        html {
+          background: linear-gradient(180deg, #202738 0%, #070816 100%);
+        }
+      }
+
+      @media (prefers-color-scheme: light) {
+        html {
+          background: radial-gradient(100% 100% at 50% 0%, rgba(255, 184, 226, 0.51) 0%, rgba(255, 255, 255, 0) 100%), #FFFFFF
+        }
+      }
+    </style>
+  <script defer src="/static/js/bundle.js"></script><meta property="og:title" content="Bored Ape Yacht Club on Uniswap"/><meta property="og:image" content="http://127.0.0.1:3000/api/image/nfts/collection/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d"/><meta property="og:image:width" content="1200"/><meta property="og:image:height" content="630"/><meta property="og:image:alt" content="Bored Ape Yacht Club on Uniswap"/><meta property="og:type" content="website"/><meta property="og:url" content="http://127.0.0.1:3000/nfts/collection/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d"/><meta property="twitter:card" content="summary_large_image"/><meta property="twitter:title" content="Bored Ape Yacht Club on Uniswap"/><meta property="twitter:image" content="http://127.0.0.1:3000/api/image/nfts/collection/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d"/><meta property="twitter:image:alt" content="Bored Ape Yacht Club on Uniswap"/></head>
+
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+
+    <div id="root">
+      <!-- Triggers the font to load immediately and then is replaced by the app -->
+      <div>&emsp;</div>
+    </div>
+
+    <div id="background-radial-gradient"></div>
+  </body>
+</html>
+"
+`;
+
+exports[`should inject metadata for valid collections 3`] = `
+"<!DOCTYPE html>
+<html translate="no">
+  <head>
+    <meta charset="utf-8" />
+
+    <title>Uniswap Interface</title>
+
+    <!--
+       will be replaced with the URL of the \`public\` folder during build.
+      Only files inside the \`public\` folder can be referenced from the HTML.
+    -->
+    <link rel="shortcut icon" type="image/png" href="/favicon.png" />
+    <link rel="apple-touch-icon" sizes="192x192" href="/images/192x192_App_Icon.png" />
+    <link rel="apple-touch-icon" sizes="512x512" href="/images/512x512_App_Icon.png" />
+
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+    <meta name="theme-color" content="#FC72FF" />
+    <meta
+      http-equiv="Content-Security-Policy"
+      
+        content="script-src 'self' 'unsafe-inline'"
+      
+    />
+
+    <!-- 
+      Apple Smart App Banner for Safari on iOS
+      https://developer.apple.com/documentation/webkit/promoting_apps_with_smart_app_banners
+     -->
+    <meta name="apple-itunes-app" content="app-id=6443944476">
+
+    <!--
+      manifest.json provides metadata used when the app is installed as a PWA.
+      See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="/manifest.json" />
+
+    <link rel="preload" href="/fonts/Inter-roman.var.woff2" as="font" type="font/woff2" crossorigin />
+
+    <style>
+      * {
+        font-family: 'Inter', sans-serif;
+        box-sizing: border-box;
+      }
+
+      /**
+          Explicitly load Inter var from public/ so it does not block LCP's critical path.
+        */
+      @font-face {
+        font-family: 'Inter custom';
+        font-weight: 100 900;
+        font-style: normal;
+        font-display: block;
+        font-named-instance: 'Regular';
+        src: url(/fonts/Inter-roman.var.woff2) format('woff2 supports variations(gvar)'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2-variations'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2');
+      }
+
+      @supports (font-variation-settings: normal) {
+        * {
+          font-family: 'Inter custom', sans-serif;
+        }
+      }
+
+      html,
+      body {
+        margin: 0;
+        padding: 0;
+      }
+
+      button {
+        user-select: none;
+      }
+
+      html {
+        font-size: 16px;
+        font-variant: none;
+        font-smooth: always;
+        -webkit-font-smoothing: antialiased;
+        -moz-osx-font-smoothing: grayscale;
+        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+      }
+
+      /* Use this to apply network-specific gradient backgrounds, in RadialGradientByChainUpdater.ts */
+      #background-radial-gradient {
+        position: fixed;
+        top: 0;
+        left: 0;
+        right: 0;
+        pointer-events: none;
+        width: 200vw;
+        height: 200vh;
+        transform: translate(-50vw, -100vh);
+        z-index: -1;
+      }
+
+      html,
+      body,
+      #root {
+        min-height: 100%;
+      }
+
+      @media (prefers-color-scheme: dark) {
+        html {
+          background: linear-gradient(180deg, #202738 0%, #070816 100%);
+        }
+      }
+
+      @media (prefers-color-scheme: light) {
+        html {
+          background: radial-gradient(100% 100% at 50% 0%, rgba(255, 184, 226, 0.51) 0%, rgba(255, 255, 255, 0) 100%), #FFFFFF
+        }
+      }
+    </style>
+  <script defer src="/static/js/bundle.js"></script><meta property="og:title" content="CLONE X - X TAKASHI MURAKAMI on Uniswap"/><meta property="og:image" content="http://127.0.0.1:3000/api/image/nfts/collection/0x49cf6f5d44e70224e2e23fdcdd2c053f30ada28b"/><meta property="og:image:width" content="1200"/><meta property="og:image:height" content="630"/><meta property="og:image:alt" content="CLONE X - X TAKASHI MURAKAMI on Uniswap"/><meta property="og:type" content="website"/><meta property="og:url" content="http://127.0.0.1:3000/nfts/collection/0x49cf6f5d44e70224e2e23fdcdd2c053f30ada28b"/><meta property="twitter:card" content="summary_large_image"/><meta property="twitter:title" content="CLONE X - X TAKASHI MURAKAMI on Uniswap"/><meta property="twitter:image" content="http://127.0.0.1:3000/api/image/nfts/collection/0x49cf6f5d44e70224e2e23fdcdd2c053f30ada28b"/><meta property="twitter:image:alt" content="CLONE X - X TAKASHI MURAKAMI on Uniswap"/></head>
+
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+
+    <div id="root">
+      <!-- Triggers the font to load immediately and then is replaced by the app -->
+      <div>&emsp;</div>
+    </div>
+
+    <div id="background-radial-gradient"></div>
+  </body>
+</html>
+"
+`;

functions/nfts/collection/collection.test.ts

@@ -0,0 +1,59 @@
+const collections = [
+  {
+    address: '0xed5af388653567af2f388e6224dc7c4b3241c544',
+    collectionName: 'Azuki',
+    image: 'http://127.0.0.1:3000/api/image/nfts/collection/0xed5af388653567af2f388e6224dc7c4b3241c544',
+  },
+  {
+    address: '0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d',
+    collectionName: 'Bored Ape Yacht Club',
+    image: 'http://127.0.0.1:3000/api/image/nfts/collection/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d',
+  },
+  {
+    address: '0x49cf6f5d44e70224e2e23fdcdd2c053f30ada28b',
+    collectionName: 'CLONE X - X TAKASHI MURAKAMI',
+    image: 'http://127.0.0.1:3000/api/image/nfts/collection/0x49cf6f5d44e70224e2e23fdcdd2c053f30ada28b',
+  },
+]
+
+test.each(collections)('should inject metadata for valid collections', async (collection) => {
+  const url = 'http://127.0.0.1:3000/nfts/collection/' + collection.address
+  const body = await fetch(new Request(url)).then((res) => res.text())
+  expect(body).toMatchSnapshot()
+  expect(body).toContain(`<meta property="og:title" content="${collection.collectionName} on Uniswap"/>`)
+  expect(body).not.toContain(`<meta property="og:description"`)
+  expect(body).toContain(`<meta property="og:image" content="${collection.image}"/>`)
+  expect(body).toContain(`<meta property="og:image:width" content="1200"/>`)
+  expect(body).toContain(`<meta property="og:image:height" content="630"/>`)
+  expect(body).toContain(`<meta property="og:type" content="website"/>`)
+  expect(body).toContain(`<meta property="og:url" content="${url}"/>`)
+  expect(body).toContain(`<meta property="og:image:alt" content="${collection.collectionName} on Uniswap"/>`)
+  expect(body).toContain(`<meta property="twitter:card" content="summary_large_image"/>`)
+  expect(body).toContain(`<meta property="twitter:title" content="${collection.collectionName} on Uniswap"/>`)
+  expect(body).toContain(`<meta property="twitter:image" content="${collection.image}"/>`)
+  expect(body).toContain(`<meta property="twitter:image:alt" content="${collection.collectionName} on Uniswap"/>`)
+})
+
+const invalidCollections = [
+  'http://127.0.0.1:3000/nfts/collection/0xed5af388653567af2f388e6224dc7c4b3241c545',
+  'http://127.0.0.1:3000/nfts/collection/0xed5af388653567af2f388e6224dc7c4b3241c545//',
+]
+
+test.each(invalidCollections)(
+  'should not inject metadata for invalid collection urls',
+  async (url) => {
+    const body = await fetch(new Request(url)).then((res) => res.text())
+    expect(body).not.toContain('og:title')
+    expect(body).not.toContain('og:image')
+    expect(body).not.toContain('og:image:width')
+    expect(body).not.toContain('og:image:height')
+    expect(body).not.toContain('og:type')
+    expect(body).not.toContain('og:url')
+    expect(body).not.toContain('og:image:alt')
+    expect(body).not.toContain('twitter:card')
+    expect(body).not.toContain('twitter:title')
+    expect(body).not.toContain('twitter:image')
+    expect(body).not.toContain('twitter:image:alt')
+  },
+  50000
+)

functions/tokens/[[index]].ts

@@ -0,0 +1,18 @@
+/* eslint-disable import/no-unused-modules */
+import { getMetadataRequest } from '../utils/getRequest'
+import getToken from '../utils/getToken'
+
+export const onRequest: PagesFunction = async ({ params, request, next }) => {
+  const res = next()
+  try {
+    const { index } = params
+    const networkName = index[0]?.toString()
+    const tokenAddress = index[1]?.toString()
+    if (!tokenAddress) {
+      return res
+    }
+    return getMetadataRequest(res, request.url, () => getToken(networkName, tokenAddress, request.url))
+  } catch (e) {
+    return res
+  }
+}

functions/tokens/__snapshots__/token.test.ts.snap

@@ -0,0 +1,525 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`should inject metadata for valid tokens 1`] = `
+"<!DOCTYPE html>
+<html translate="no">
+  <head>
+    <meta charset="utf-8" />
+
+    <title>Uniswap Interface</title>
+
+    <!--
+       will be replaced with the URL of the \`public\` folder during build.
+      Only files inside the \`public\` folder can be referenced from the HTML.
+    -->
+    <link rel="shortcut icon" type="image/png" href="/favicon.png" />
+    <link rel="apple-touch-icon" sizes="192x192" href="/images/192x192_App_Icon.png" />
+    <link rel="apple-touch-icon" sizes="512x512" href="/images/512x512_App_Icon.png" />
+
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+    <meta name="theme-color" content="#FC72FF" />
+    <meta
+      http-equiv="Content-Security-Policy"
+      
+        content="script-src 'self' 'unsafe-inline'"
+      
+    />
+
+    <!-- 
+      Apple Smart App Banner for Safari on iOS
+      https://developer.apple.com/documentation/webkit/promoting_apps_with_smart_app_banners
+     -->
+    <meta name="apple-itunes-app" content="app-id=6443944476">
+
+    <!--
+      manifest.json provides metadata used when the app is installed as a PWA.
+      See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="/manifest.json" />
+
+    <link rel="preload" href="/fonts/Inter-roman.var.woff2" as="font" type="font/woff2" crossorigin />
+
+    <style>
+      * {
+        font-family: 'Inter', sans-serif;
+        box-sizing: border-box;
+      }
+
+      /**
+          Explicitly load Inter var from public/ so it does not block LCP's critical path.
+        */
+      @font-face {
+        font-family: 'Inter custom';
+        font-weight: 100 900;
+        font-style: normal;
+        font-display: block;
+        font-named-instance: 'Regular';
+        src: url(/fonts/Inter-roman.var.woff2) format('woff2 supports variations(gvar)'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2-variations'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2');
+      }
+
+      @supports (font-variation-settings: normal) {
+        * {
+          font-family: 'Inter custom', sans-serif;
+        }
+      }
+
+      html,
+      body {
+        margin: 0;
+        padding: 0;
+      }
+
+      button {
+        user-select: none;
+      }
+
+      html {
+        font-size: 16px;
+        font-variant: none;
+        font-smooth: always;
+        -webkit-font-smoothing: antialiased;
+        -moz-osx-font-smoothing: grayscale;
+        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+      }
+
+      /* Use this to apply network-specific gradient backgrounds, in RadialGradientByChainUpdater.ts */
+      #background-radial-gradient {
+        position: fixed;
+        top: 0;
+        left: 0;
+        right: 0;
+        pointer-events: none;
+        width: 200vw;
+        height: 200vh;
+        transform: translate(-50vw, -100vh);
+        z-index: -1;
+      }
+
+      html,
+      body,
+      #root {
+        min-height: 100%;
+      }
+
+      @media (prefers-color-scheme: dark) {
+        html {
+          background: linear-gradient(180deg, #202738 0%, #070816 100%);
+        }
+      }
+
+      @media (prefers-color-scheme: light) {
+        html {
+          background: radial-gradient(100% 100% at 50% 0%, rgba(255, 184, 226, 0.51) 0%, rgba(255, 255, 255, 0) 100%), #FFFFFF
+        }
+      }
+    </style>
+  <script defer src="/static/js/bundle.js"></script><meta property="og:title" content="Get USDC on Uniswap"/><meta property="og:image" content="http://127.0.0.1:3000/api/image/tokens/ethereum/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"/><meta property="og:image:width" content="1200"/><meta property="og:image:height" content="630"/><meta property="og:image:alt" content="Get USDC on Uniswap"/><meta property="og:type" content="website"/><meta property="og:url" content="http://127.0.0.1:3000/tokens/ethereum/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"/><meta property="twitter:card" content="summary_large_image"/><meta property="twitter:title" content="Get USDC on Uniswap"/><meta property="twitter:image" content="http://127.0.0.1:3000/api/image/tokens/ethereum/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"/><meta property="twitter:image:alt" content="Get USDC on Uniswap"/></head>
+
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+
+    <div id="root">
+      <!-- Triggers the font to load immediately and then is replaced by the app -->
+      <div>&emsp;</div>
+    </div>
+
+    <div id="background-radial-gradient"></div>
+  </body>
+</html>
+"
+`;
+
+exports[`should inject metadata for valid tokens 2`] = `
+"<!DOCTYPE html>
+<html translate="no">
+  <head>
+    <meta charset="utf-8" />
+
+    <title>Uniswap Interface</title>
+
+    <!--
+       will be replaced with the URL of the \`public\` folder during build.
+      Only files inside the \`public\` folder can be referenced from the HTML.
+    -->
+    <link rel="shortcut icon" type="image/png" href="/favicon.png" />
+    <link rel="apple-touch-icon" sizes="192x192" href="/images/192x192_App_Icon.png" />
+    <link rel="apple-touch-icon" sizes="512x512" href="/images/512x512_App_Icon.png" />
+
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+    <meta name="theme-color" content="#FC72FF" />
+    <meta
+      http-equiv="Content-Security-Policy"
+      
+        content="script-src 'self' 'unsafe-inline'"
+      
+    />
+
+    <!-- 
+      Apple Smart App Banner for Safari on iOS
+      https://developer.apple.com/documentation/webkit/promoting_apps_with_smart_app_banners
+     -->
+    <meta name="apple-itunes-app" content="app-id=6443944476">
+
+    <!--
+      manifest.json provides metadata used when the app is installed as a PWA.
+      See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="/manifest.json" />
+
+    <link rel="preload" href="/fonts/Inter-roman.var.woff2" as="font" type="font/woff2" crossorigin />
+
+    <style>
+      * {
+        font-family: 'Inter', sans-serif;
+        box-sizing: border-box;
+      }
+
+      /**
+          Explicitly load Inter var from public/ so it does not block LCP's critical path.
+        */
+      @font-face {
+        font-family: 'Inter custom';
+        font-weight: 100 900;
+        font-style: normal;
+        font-display: block;
+        font-named-instance: 'Regular';
+        src: url(/fonts/Inter-roman.var.woff2) format('woff2 supports variations(gvar)'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2-variations'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2');
+      }
+
+      @supports (font-variation-settings: normal) {
+        * {
+          font-family: 'Inter custom', sans-serif;
+        }
+      }
+
+      html,
+      body {
+        margin: 0;
+        padding: 0;
+      }
+
+      button {
+        user-select: none;
+      }
+
+      html {
+        font-size: 16px;
+        font-variant: none;
+        font-smooth: always;
+        -webkit-font-smoothing: antialiased;
+        -moz-osx-font-smoothing: grayscale;
+        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+      }
+
+      /* Use this to apply network-specific gradient backgrounds, in RadialGradientByChainUpdater.ts */
+      #background-radial-gradient {
+        position: fixed;
+        top: 0;
+        left: 0;
+        right: 0;
+        pointer-events: none;
+        width: 200vw;
+        height: 200vh;
+        transform: translate(-50vw, -100vh);
+        z-index: -1;
+      }
+
+      html,
+      body,
+      #root {
+        min-height: 100%;
+      }
+
+      @media (prefers-color-scheme: dark) {
+        html {
+          background: linear-gradient(180deg, #202738 0%, #070816 100%);
+        }
+      }
+
+      @media (prefers-color-scheme: light) {
+        html {
+          background: radial-gradient(100% 100% at 50% 0%, rgba(255, 184, 226, 0.51) 0%, rgba(255, 255, 255, 0) 100%), #FFFFFF
+        }
+      }
+    </style>
+  <script defer src="/static/js/bundle.js"></script><meta property="og:title" content="Get ETH on Uniswap"/><meta property="og:image" content="http://127.0.0.1:3000/api/image/tokens/ethereum/NATIVE"/><meta property="og:image:width" content="1200"/><meta property="og:image:height" content="630"/><meta property="og:image:alt" content="Get ETH on Uniswap"/><meta property="og:type" content="website"/><meta property="og:url" content="http://127.0.0.1:3000/tokens/ethereum/NATIVE"/><meta property="twitter:card" content="summary_large_image"/><meta property="twitter:title" content="Get ETH on Uniswap"/><meta property="twitter:image" content="http://127.0.0.1:3000/api/image/tokens/ethereum/NATIVE"/><meta property="twitter:image:alt" content="Get ETH on Uniswap"/></head>
+
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+
+    <div id="root">
+      <!-- Triggers the font to load immediately and then is replaced by the app -->
+      <div>&emsp;</div>
+    </div>
+
+    <div id="background-radial-gradient"></div>
+  </body>
+</html>
+"
+`;
+
+exports[`should inject metadata for valid tokens 3`] = `
+"<!DOCTYPE html>
+<html translate="no">
+  <head>
+    <meta charset="utf-8" />
+
+    <title>Uniswap Interface</title>
+
+    <!--
+       will be replaced with the URL of the \`public\` folder during build.
+      Only files inside the \`public\` folder can be referenced from the HTML.
+    -->
+    <link rel="shortcut icon" type="image/png" href="/favicon.png" />
+    <link rel="apple-touch-icon" sizes="192x192" href="/images/192x192_App_Icon.png" />
+    <link rel="apple-touch-icon" sizes="512x512" href="/images/512x512_App_Icon.png" />
+
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+    <meta name="theme-color" content="#FC72FF" />
+    <meta
+      http-equiv="Content-Security-Policy"
+      
+        content="script-src 'self' 'unsafe-inline'"
+      
+    />
+
+    <!-- 
+      Apple Smart App Banner for Safari on iOS
+      https://developer.apple.com/documentation/webkit/promoting_apps_with_smart_app_banners
+     -->
+    <meta name="apple-itunes-app" content="app-id=6443944476">
+
+    <!--
+      manifest.json provides metadata used when the app is installed as a PWA.
+      See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="/manifest.json" />
+
+    <link rel="preload" href="/fonts/Inter-roman.var.woff2" as="font" type="font/woff2" crossorigin />
+
+    <style>
+      * {
+        font-family: 'Inter', sans-serif;
+        box-sizing: border-box;
+      }
+
+      /**
+          Explicitly load Inter var from public/ so it does not block LCP's critical path.
+        */
+      @font-face {
+        font-family: 'Inter custom';
+        font-weight: 100 900;
+        font-style: normal;
+        font-display: block;
+        font-named-instance: 'Regular';
+        src: url(/fonts/Inter-roman.var.woff2) format('woff2 supports variations(gvar)'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2-variations'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2');
+      }
+
+      @supports (font-variation-settings: normal) {
+        * {
+          font-family: 'Inter custom', sans-serif;
+        }
+      }
+
+      html,
+      body {
+        margin: 0;
+        padding: 0;
+      }
+
+      button {
+        user-select: none;
+      }
+
+      html {
+        font-size: 16px;
+        font-variant: none;
+        font-smooth: always;
+        -webkit-font-smoothing: antialiased;
+        -moz-osx-font-smoothing: grayscale;
+        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+      }
+
+      /* Use this to apply network-specific gradient backgrounds, in RadialGradientByChainUpdater.ts */
+      #background-radial-gradient {
+        position: fixed;
+        top: 0;
+        left: 0;
+        right: 0;
+        pointer-events: none;
+        width: 200vw;
+        height: 200vh;
+        transform: translate(-50vw, -100vh);
+        z-index: -1;
+      }
+
+      html,
+      body,
+      #root {
+        min-height: 100%;
+      }
+
+      @media (prefers-color-scheme: dark) {
+        html {
+          background: linear-gradient(180deg, #202738 0%, #070816 100%);
+        }
+      }
+
+      @media (prefers-color-scheme: light) {
+        html {
+          background: radial-gradient(100% 100% at 50% 0%, rgba(255, 184, 226, 0.51) 0%, rgba(255, 255, 255, 0) 100%), #FFFFFF
+        }
+      }
+    </style>
+  <script defer src="/static/js/bundle.js"></script><meta property="og:title" content="Get MATIC on Uniswap"/><meta property="og:image" content="http://127.0.0.1:3000/api/image/tokens/polygon/NATIVE"/><meta property="og:image:width" content="1200"/><meta property="og:image:height" content="630"/><meta property="og:image:alt" content="Get MATIC on Uniswap"/><meta property="og:type" content="website"/><meta property="og:url" content="http://127.0.0.1:3000/tokens/polygon/NATIVE"/><meta property="twitter:card" content="summary_large_image"/><meta property="twitter:title" content="Get MATIC on Uniswap"/><meta property="twitter:image" content="http://127.0.0.1:3000/api/image/tokens/polygon/NATIVE"/><meta property="twitter:image:alt" content="Get MATIC on Uniswap"/></head>
+
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+
+    <div id="root">
+      <!-- Triggers the font to load immediately and then is replaced by the app -->
+      <div>&emsp;</div>
+    </div>
+
+    <div id="background-radial-gradient"></div>
+  </body>
+</html>
+"
+`;
+
+exports[`should inject metadata for valid tokens 4`] = `
+"<!DOCTYPE html>
+<html translate="no">
+  <head>
+    <meta charset="utf-8" />
+
+    <title>Uniswap Interface</title>
+
+    <!--
+       will be replaced with the URL of the \`public\` folder during build.
+      Only files inside the \`public\` folder can be referenced from the HTML.
+    -->
+    <link rel="shortcut icon" type="image/png" href="/favicon.png" />
+    <link rel="apple-touch-icon" sizes="192x192" href="/images/192x192_App_Icon.png" />
+    <link rel="apple-touch-icon" sizes="512x512" href="/images/512x512_App_Icon.png" />
+
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+    <meta name="theme-color" content="#FC72FF" />
+    <meta
+      http-equiv="Content-Security-Policy"
+      
+        content="script-src 'self' 'unsafe-inline'"
+      
+    />
+
+    <!-- 
+      Apple Smart App Banner for Safari on iOS
+      https://developer.apple.com/documentation/webkit/promoting_apps_with_smart_app_banners
+     -->
+    <meta name="apple-itunes-app" content="app-id=6443944476">
+
+    <!--
+      manifest.json provides metadata used when the app is installed as a PWA.
+      See https://developers.google.com/web/fundamentals/web-app-manifest/
+    -->
+    <link rel="manifest" href="/manifest.json" />
+
+    <link rel="preload" href="/fonts/Inter-roman.var.woff2" as="font" type="font/woff2" crossorigin />
+
+    <style>
+      * {
+        font-family: 'Inter', sans-serif;
+        box-sizing: border-box;
+      }
+
+      /**
+          Explicitly load Inter var from public/ so it does not block LCP's critical path.
+        */
+      @font-face {
+        font-family: 'Inter custom';
+        font-weight: 100 900;
+        font-style: normal;
+        font-display: block;
+        font-named-instance: 'Regular';
+        src: url(/fonts/Inter-roman.var.woff2) format('woff2 supports variations(gvar)'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2-variations'),
+          url(/fonts/Inter-roman.var.woff2) format('woff2');
+      }
+
+      @supports (font-variation-settings: normal) {
+        * {
+          font-family: 'Inter custom', sans-serif;
+        }
+      }
+
+      html,
+      body {
+        margin: 0;
+        padding: 0;
+      }
+
+      button {
+        user-select: none;
+      }
+
+      html {
+        font-size: 16px;
+        font-variant: none;
+        font-smooth: always;
+        -webkit-font-smoothing: antialiased;
+        -moz-osx-font-smoothing: grayscale;
+        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+      }
+
+      /* Use this to apply network-specific gradient backgrounds, in RadialGradientByChainUpdater.ts */
+      #background-radial-gradient {
+        position: fixed;
+        top: 0;
+        left: 0;
+        right: 0;
+        pointer-events: none;
+        width: 200vw;
+        height: 200vh;
+        transform: translate(-50vw, -100vh);
+        z-index: -1;
+      }
+
+      html,
+      body,
+      #root {
+        min-height: 100%;
+      }
+
+      @media (prefers-color-scheme: dark) {
+        html {
+          background: linear-gradient(180deg, #202738 0%, #070816 100%);
+        }
+      }
+
+      @media (prefers-color-scheme: light) {
+        html {
+          background: radial-gradient(100% 100% at 50% 0%, rgba(255, 184, 226, 0.51) 0%, rgba(255, 255, 255, 0) 100%), #FFFFFF
+        }
+      }
+    </style>
+  <script defer src="/static/js/bundle.js"></script><meta property="og:title" content="Get PEPE on Uniswap"/><meta property="og:image" content="http://127.0.0.1:3000/api/image/tokens/ethereum/0x6982508145454ce325ddbe47a25d4ec3d2311933"/><meta property="og:image:width" content="1200"/><meta property="og:image:height" content="630"/><meta property="og:image:alt" content="Get PEPE on Uniswap"/><meta property="og:type" content="website"/><meta property="og:url" content="http://127.0.0.1:3000/tokens/ethereum/0x6982508145454ce325ddbe47a25d4ec3d2311933"/><meta property="twitter:card" content="summary_large_image"/><meta property="twitter:title" content="Get PEPE on Uniswap"/><meta property="twitter:image" content="http://127.0.0.1:3000/api/image/tokens/ethereum/0x6982508145454ce325ddbe47a25d4ec3d2311933"/><meta property="twitter:image:alt" content="Get PEPE on Uniswap"/></head>
+
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+
+    <div id="root">
+      <!-- Triggers the font to load immediately and then is replaced by the app -->
+      <div>&emsp;</div>
+    </div>
+
+    <div id="background-radial-gradient"></div>
+  </body>
+</html>
+"
+`;

functions/tokens/token.test.ts

@@ -0,0 +1,68 @@
+const tokens = [
+  {
+    address: '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48',
+    network: 'ethereum',
+    symbol: 'USDC',
+    image: 'http://127.0.0.1:3000/api/image/tokens/ethereum/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48',
+  },
+  {
+    address: 'NATIVE',
+    network: 'ethereum',
+    symbol: 'ETH',
+    image: 'http://127.0.0.1:3000/api/image/tokens/ethereum/NATIVE',
+  },
+  {
+    address: 'NATIVE',
+    network: 'polygon',
+    symbol: 'MATIC',
+    image: 'http://127.0.0.1:3000/api/image/tokens/polygon/NATIVE',
+  },
+  {
+    address: '0x6982508145454ce325ddbe47a25d4ec3d2311933',
+    network: 'ethereum',
+    symbol: 'PEPE',
+    image: 'http://127.0.0.1:3000/api/image/tokens/ethereum/0x6982508145454ce325ddbe47a25d4ec3d2311933',
+  },
+]
+
+test.each(tokens)('should inject metadata for valid tokens', async (token) => {
+  const url = 'http://127.0.0.1:3000/tokens/' + token.network + '/' + token.address
+  const body = await fetch(new Request(url)).then((res) => res.text())
+  expect(body).toMatchSnapshot()
+  expect(body).toContain(`<meta property="og:title" content="Get ${token.symbol} on Uniswap"/>`)
+  expect(body).not.toContain(`<meta property="og:description"`)
+  expect(body).toContain(`<meta property="og:image" content="${token.image}"/>`)
+  expect(body).toContain(`<meta property="og:image:width" content="1200"/>`)
+  expect(body).toContain(`<meta property="og:image:height" content="630"/>`)
+  expect(body).toContain(`<meta property="og:type" content="website"/>`)
+  expect(body).toContain(`<meta property="og:url" content="${url}"/>`)
+  expect(body).toContain(`<meta property="og:image:alt" content="Get ${token.symbol} on Uniswap"/>`)
+  expect(body).toContain(`<meta property="twitter:card" content="summary_large_image"/>`)
+  expect(body).toContain(`<meta property="twitter:title" content="Get ${token.symbol} on Uniswap"/>`)
+  expect(body).toContain(`<meta property="twitter:image" content="${token.image}"/>`)
+  expect(body).toContain(`<meta property="twitter:image:alt" content="Get ${token.symbol} on Uniswap"/>`)
+})
+
+const invalidTokens = [
+  'http://127.0.0.1:3000/tokens/ethereum/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb49',
+  'http://127.0.0.1:3000/tokens/ethereum',
+  'http://127.0.0.1:3000/tokens/ethereun',
+  'http://127.0.0.1:3000/tokens/ethereum/0x0',
+  'http://127.0.0.1:3000/tokens/ethereum//',
+  'http://127.0.0.1:3000/tokens/potato/?potato=1',
+]
+
+test.each(invalidTokens)('should not inject metadata for invalid tokens', async (url) => {
+  const body = await fetch(new Request(url)).then((res) => res.text())
+  expect(body).not.toContain('og:title')
+  expect(body).not.toContain('og:image')
+  expect(body).not.toContain('og:image:width')
+  expect(body).not.toContain('og:image:height')
+  expect(body).not.toContain('og:type')
+  expect(body).not.toContain('og:url')
+  expect(body).not.toContain('og:image:alt')
+  expect(body).not.toContain('twitter:card')
+  expect(body).not.toContain('twitter:title')
+  expect(body).not.toContain('twitter:image')
+  expect(body).not.toContain('twitter:image:alt')
+})

functions/tsconfig.json

@@ -0,0 +1,13 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "baseUrl": "functions",
+    "composite": false,
+    "incremental": true,
+    "isolatedModules": false,
+    "jsx": "react",
+    "tsBuildInfoFile": "../node_modules/.cache/tsbuildinfo/functions", // avoid clobbering the build tsbuildinfo
+    "types": ["jest", "node", "@cloudflare/workers-types"],
+  },
+  "include": ["**/*.ts", ".ts", "**/*.tsx"],
+}

functions/types.d.ts

@@ -0,0 +1 @@
+declare module 'colorthief/src/color-thief-node'

functions/utils/cache.test.ts

@@ -0,0 +1,43 @@
+import CacheMock from 'browser-cache-mock'
+
+import { mocked } from '../../src/test-utils/mocked'
+import Cache from './cache'
+
+const cacheMock = new CacheMock()
+
+const data = {
+  title: 'test',
+  image: 'testImage',
+  url: 'testUrl',
+}
+
+beforeAll(() => {
+  const globalAny: any = global
+  globalAny.caches = {
+    open: async () => cacheMock,
+    ...cacheMock,
+  }
+})
+
+test('Should put cache properly', async () => {
+  jest.spyOn(cacheMock, 'put')
+  await Cache.put(data, 'https://example.com')
+  expect(cacheMock.put).toHaveBeenCalledWith('https://example.com', expect.anything())
+  const call = mocked(cacheMock.put).mock.calls[0]
+  const response = JSON.parse(await (call[1] as Response).clone().text())
+  expect(response).toStrictEqual(data)
+
+  await expect(Cache.match('https://example.com')).resolves.toStrictEqual(data)
+})
+
+test('Should match cache properly', async () => {
+  jest.spyOn(cacheMock, 'match').mockResolvedValueOnce(new Response(JSON.stringify(data)))
+  const response = await Cache.match('https://example.com')
+  expect(response).toStrictEqual(data)
+})
+
+test('Should return undefined if not all data is present', async () => {
+  jest.spyOn(cacheMock, 'match').mockResolvedValueOnce(new Response(JSON.stringify({ ...data, title: undefined })))
+  const response = await Cache.match('https://example.com')
+  expect(response).toBeUndefined()
+})

functions/utils/cache.ts

@@ -0,0 +1,32 @@
+export interface Data {
+  title: string
+  image: string
+  url: string
+  name?: string
+  ogImage?: string
+  isVerified?: boolean
+  symbol?: string
+}
+
+const CACHE_NAME = 'functions-cache' as const
+
+class Cache {
+  async match(request: string): Promise<Data | undefined> {
+    const cache = await caches.open(CACHE_NAME)
+    const response = await cache.match(request)
+    if (!response) return undefined
+    const data: Data = JSON.parse(await response.text())
+    if (!data.title || !data.image || !data.url) return undefined
+    return data
+  }
+
+  async put(data: Data, request: string) {
+    // Set max age to 1 week
+    const response = new Response(JSON.stringify(data))
+    response.headers.set('Cache-Control', 'max-age=604800')
+    const cache = await caches.open(CACHE_NAME)
+    await cache.put(request, response)
+  }
+}
+
+export default new Cache()

functions/utils/getAsset.ts

@@ -0,0 +1,41 @@
+import { AssetDocument, AssetQuery } from '../../src/graphql/data/__generated__/types-and-hooks'
+import client from '../client'
+
+function formatTitleName(name: string | undefined, collectionName: string | undefined, tokenId: string) {
+  if (name) {
+    return name
+  }
+  if (collectionName && tokenId) {
+    return collectionName + ' #' + tokenId
+  }
+  if (tokenId) {
+    return 'Asset #' + tokenId
+  }
+  return 'View NFT on Uniswap'
+}
+
+export default async function getAsset(collectionAddress: string, tokenId: string, url: string) {
+  const origin = new URL(url).origin
+  const image = origin + '/api/image/nfts/asset/' + collectionAddress + '/' + tokenId
+  const { data } = await client.query<AssetQuery>({
+    query: AssetDocument,
+    variables: {
+      address: collectionAddress,
+      filter: {
+        tokenIds: [tokenId],
+      },
+    },
+  })
+  const asset = data?.nftAssets?.edges[0]?.node
+  if (!asset) {
+    return undefined
+  }
+  const title = formatTitleName(asset.name, asset.collection?.name, asset.tokenId)
+  const formattedAsset = {
+    title,
+    image,
+    url,
+    ogImage: asset.image?.url ?? origin + '/images/192x192_App_Icon.png',
+  }
+  return formattedAsset
+}

functions/utils/getCollection.ts

@@ -0,0 +1,26 @@
+import { CollectionDocument, CollectionQuery } from '../../src/graphql/data/__generated__/types-and-hooks'
+import client from '../client'
+
+export default async function getCollection(collectionAddress: string, url: string) {
+  const origin = new URL(url).origin
+  const image = origin + '/api/image/nfts/collection/' + collectionAddress
+  const { data } = await client.query<CollectionQuery>({
+    query: CollectionDocument,
+    variables: {
+      addresses: collectionAddress,
+    },
+  })
+  const collection = data?.nftCollections?.edges[0]?.node
+  if (!collection || !collection.name) {
+    return undefined
+  }
+  const formattedAsset = {
+    title: collection.name + ' on Uniswap',
+    image,
+    url,
+    name: collection.name ?? 'Collection',
+    ogImage: collection.image?.url ?? origin + '/images/192x192_App_Icon.png',
+    isVerified: collection.isVerified ?? false,
+  }
+  return formattedAsset
+}

functions/utils/getColor.test.ts

@@ -0,0 +1,33 @@
+import { DEFAULT_COLOR } from '../constants'
+import getColor from './getColor'
+
+test('should return the average color of a black PNG image', async () => {
+  const image = 'https://static.vecteezy.com/system/resources/previews/001/209/957/original/square-png.png'
+  const color = await getColor(image)
+  expect(color).toEqual([0, 0, 0])
+})
+
+test('should return the average color of a blue PNG image', async () => {
+  const image = 'https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTB2Ztcim-RKbOu57kfjYpXnnS1MO5YMUaUH9Lk5Eg&s'
+  const color = await getColor(image)
+  expect(color).toEqual([2, 6, 251])
+})
+
+test('should return the average color of a white PNG image', async () => {
+  const image = 'https://www.cac.cornell.edu/wiki/images/4/44/White_square.png'
+  const color = await getColor(image)
+  expect(color).toEqual([255, 255, 255])
+})
+
+test('should return the average color of a black JPG image', async () => {
+  const image =
+    'https://imageio.forbes.com/specials-images/imageserve/5ed6636cdd5d320006caf841/0x0.jpg?format=jpg&width=1200'
+  const color = await getColor(image)
+  expect(color).toEqual([0, 0, 0])
+})
+
+test('should return default color for a gif image', async () => {
+  const image = 'https://thumbs.gfycat.com/AgitatedLiveAgouti-size_restricted.gif'
+  const color = await getColor(image)
+  expect(color).toEqual(DEFAULT_COLOR)
+})

functions/utils/getColor.ts

@@ -0,0 +1,67 @@
+import { Buffer } from 'buffer'
+import JPEG from 'jpeg-js'
+import PNG from 'png-ts'
+
+import { DEFAULT_COLOR, predefinedTokenColors } from '../constants'
+
+export default async function getColor(image: string | undefined) {
+  if (!image) {
+    return DEFAULT_COLOR
+  }
+  if (image in predefinedTokenColors) {
+    return predefinedTokenColors[image]
+  }
+  try {
+    const data = await fetch(image)
+    const buffer = await data.arrayBuffer()
+    const arrayBuffer = Buffer.from(buffer)
+
+    const type = data.headers.get('content-type') ?? ''
+    return getAverageColor(arrayBuffer, type)
+  } catch (e) {
+    return DEFAULT_COLOR
+  }
+}
+
+function getAverageColor(arrayBuffer: Uint8Array, type?: string) {
+  let pixels
+  switch (type) {
+    case 'image/png': {
+      const image = PNG.load(arrayBuffer)
+      pixels = image.decode()
+      break
+    }
+    case 'image/jpeg' || 'image/jpg': {
+      const jpeg = JPEG.decode(arrayBuffer, { useTArray: true })
+      pixels = jpeg.data
+      break
+    }
+    default: {
+      return DEFAULT_COLOR
+    }
+  }
+
+  const pixelCount = pixels.length / 4
+
+  let transparentPixels = 0
+
+  let r = 0
+  let g = 0
+  let b = 0
+
+  for (let i = 0; i < pixelCount; i++) {
+    if (pixels[i * 4 + 3] === 0) {
+      transparentPixels++
+      continue
+    }
+    r += pixels[i * 4]
+    g += pixels[i * 4 + 1]
+    b += pixels[i * 4 + 2]
+  }
+
+  r = Math.floor(r / (pixelCount - transparentPixels))
+  g = Math.floor(g / (pixelCount - transparentPixels))
+  b = Math.floor(b / (pixelCount - transparentPixels))
+
+  return [r, g, b]
+}

functions/utils/getFont.ts

@@ -0,0 +1,6 @@
+const FONT_URL = 'https://fonts.gstatic.com/s/inter/v12/UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuI6fAZFhjQ.ttf'
+
+export default async function getFont() {
+  const font = await fetch(FONT_URL)
+  return font.arrayBuffer()
+}

functions/utils/getNetworkLogoURL.ts

@@ -0,0 +1,16 @@
+import { Chain } from '../../src/graphql/data/__generated__/types-and-hooks'
+
+export default function getNetworkLogoUrl(network: string) {
+  switch (network) {
+    case Chain.Polygon:
+      return 'https://assets.coingecko.com/coins/images/4713/small/matic-token-icon.png?1624446912'
+    case Chain.Arbitrum:
+      return 'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/arbitrum/assets/0x912CE59144191C1204E64559FE8253a0e49E6548/logo.png'
+    case Chain.Optimism:
+      return 'https://raw.githubusercontent.com/Uniswap/assets/master/blockchains/optimism/assets/0x4200000000000000000000000000000000000042/logo.png'
+    case Chain.Celo:
+      return 'https://assets.coingecko.com/coins/images/11090/small/InjXBNx9_400x400.jpg?1674707499'
+    default:
+      return ''
+  }
+}

functions/utils/getRequest.test.ts

@@ -0,0 +1,38 @@
+import * as matchers from 'jest-extended'
+expect.extend(matchers)
+
+import { mocked } from '../../src/test-utils/mocked'
+import Cache, { Data } from './cache'
+import { getRequest } from './getRequest'
+
+jest.mock('./cache', () => ({
+  match: jest.fn(),
+  put: jest.fn(),
+}))
+
+test('should call Cache.match before calling getData when request is not cached', async () => {
+  const url = 'https://example.com'
+  const getData = jest.fn().mockResolvedValueOnce({
+    title: 'test',
+    image: 'testImage',
+    url: 'testUrl',
+  })
+  await getRequest(url, getData, (data): data is Data => true)
+  expect(Cache.match).toHaveBeenCalledWith(url)
+  expect(getData).toHaveBeenCalled()
+  expect(Cache.match).toHaveBeenCalledBefore(getData)
+  expect(Cache.put).toHaveBeenCalledAfter(getData)
+})
+
+test('getData should not be called when request is cached', async () => {
+  const url = 'https://example.com'
+  mocked(Cache.match).mockResolvedValueOnce({
+    title: 'test',
+    image: 'testImage',
+    url: 'testUrl',
+  })
+  const getData = jest.fn()
+  await getRequest(url, getData, (data): data is Data => true)
+  expect(Cache.match).toHaveBeenCalledWith(url)
+  expect(getData).not.toHaveBeenCalled()
+})

functions/utils/getRequest.ts

@@ -0,0 +1,42 @@
+import { MetaTagInjector } from '../components/metaTagInjector'
+import Cache from './cache'
+import { Data } from './cache'
+
+export async function getMetadataRequest(
+  res: Promise<Response>,
+  url: string,
+  getData: () => Promise<Data | undefined>
+) {
+  try {
+    const cachedData = await getRequest(url, getData, (data): data is Data => true)
+    if (cachedData) {
+      return new HTMLRewriter().on('head', new MetaTagInjector(cachedData)).transform(await res)
+    } else {
+      return res
+    }
+  } catch (e) {
+    return res
+  }
+}
+
+export async function getRequest<T extends Data>(
+  url: string,
+  getData: () => Promise<T | undefined>,
+  validateData: (data: Data) => data is T
+): Promise<T | undefined> {
+  try {
+    const cachedData = await Cache.match(url)
+    if (cachedData && validateData(cachedData)) {
+      return cachedData
+    } else {
+      const data = await getData()
+      if (!data) {
+        return undefined
+      }
+      await Cache.put(data, url)
+      return data
+    }
+  } catch (e) {
+    return undefined
+  }
+}

functions/utils/getToken.ts

@@ -0,0 +1,57 @@
+import { TokenDocument, TokenQuery } from '../../src/graphql/data/__generated__/types-and-hooks'
+import { Chain } from '../../src/graphql/data/__generated__/types-and-hooks'
+import client from '../client'
+
+function formatTitleName(symbol: string | undefined, name: string | undefined) {
+  if (symbol) {
+    return 'Get ' + symbol + ' on Uniswap'
+  }
+  if (name) {
+    return 'Get ' + name + ' on Uniswap'
+  }
+  return 'View Token on Uniswap'
+}
+
+const convertTokenAddress = (networkName: string, tokenAddress: string) => {
+  if (tokenAddress === 'NATIVE') {
+    switch (networkName) {
+      case Chain.Celo:
+        return '0x471EcE3750Da237f93B8E339c536989b8978a438'
+      case Chain.Polygon:
+        return '0x0000000000000000000000000000000000001010'
+      default:
+        return undefined
+    }
+  }
+  return tokenAddress
+}
+
+export default async function getToken(networkName: string, tokenAddress: string, url: string) {
+  const origin = new URL(url).origin
+  const image = origin + '/api/image/tokens/' + networkName + '/' + tokenAddress
+  const uppercaseNetworkName = networkName.toUpperCase()
+  const convertedTokenAddress = convertTokenAddress(uppercaseNetworkName, tokenAddress)
+  const { data } = await client.query<TokenQuery>({
+    query: TokenDocument,
+    variables: {
+      chain: uppercaseNetworkName,
+      address: convertedTokenAddress,
+    },
+  })
+  const asset = data?.token
+  if (!asset) {
+    return undefined
+  }
+
+  const title = formatTitleName(asset.symbol, asset.name)
+
+  const formattedAsset = {
+    title,
+    image,
+    url,
+    symbol: asset.symbol ?? 'UNK',
+    ogImage: asset.project?.logoUrl,
+    name: asset.name ?? 'Token',
+  }
+  return formattedAsset
+}

graphql.data.codegen.config.ts

@@ -15,6 +15,7 @@ const config: CodegenConfig = {
         withHooks: true,
         // This avoid all generated schemas being wrapped in Maybe https://the-guild.dev/graphql/codegen/plugins/typescript/typescript#maybevalue-string-default-value-t--null
         maybeValue: 'T',
+        immutableTypes: true,
       },
     },
   },