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uniswap-interface-uncensored/functions
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Brendan Wong 984cf81911
fix: cleanup cloud function environment (#7085) 
* cleanup!

* update comments

* fix: cloudfunctions
2023-08-08 15:21:30 -04:00
..
components feat: automated testing for cloud functions (#6931) 2023-07-25 15:12:13 -04:00
nfts fix: cloud tests broken by path based (#7100) 2023-08-07 20:18:14 -04:00
tokens fix: cloud tests broken by path based (#7100) 2023-08-07 20:18:14 -04:00
utils feat: caches GraphQL queries for Cloudflare workers (#6929) 2023-08-04 14:12:20 -04:00
babel.config.js feat: wrangler infra and test environment (#6797) 2023-07-07 11:41:09 -04:00
client.ts feat: cloudflare worker to inject meta tags (#6901) 2023-07-18 12:35:29 -04:00
global-setup.ts fix: cleanup cloud function environment (#7085) 2023-08-08 15:21:30 -04:00
global-teardown.ts feat: wrangler infra and test environment (#6797) 2023-07-07 11:41:09 -04:00
global.d.ts feat: wrangler infra and test environment (#6797) 2023-07-07 11:41:09 -04:00
jest.config.json feat: automated testing for cloud functions (#6931) 2023-07-25 15:12:13 -04:00
README.md feat: readme for cloud functions (#6914) 2023-07-25 15:06:28 -04:00
tsconfig.json fix: cleanup cloud function environment (#7085) 2023-08-08 15:21:30 -04:00

README.md

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 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 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