841 lines
33 KiB
JavaScript
841 lines
33 KiB
JavaScript
"use strict";
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/**
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* One of the most common ways to interact with the blockchain is
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* by a node running a JSON-RPC interface which can be connected to,
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* based on the transport, using:
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*
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* - HTTP or HTTPS - [[JsonRpcProvider]]
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* - WebSocket - [[WebSocketProvider]]
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* - IPC - [[IpcSocketProvider]]
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*
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* @_section: api/providers/jsonrpc:JSON-RPC Provider [about-jsonrpcProvider]
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.JsonRpcProvider = exports.JsonRpcApiPollingProvider = exports.JsonRpcApiProvider = exports.JsonRpcSigner = void 0;
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// @TODO:
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// - Add the batching API
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// https://playground.open-rpc.org/?schemaUrl=https://raw.githubusercontent.com/ethereum/eth1.0-apis/assembled-spec/openrpc.json&uiSchema%5BappBar%5D%5Bui:splitView%5D=true&uiSchema%5BappBar%5D%5Bui:input%5D=false&uiSchema%5BappBar%5D%5Bui:examplesDropdown%5D=false
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const index_js_1 = require("../abi/index.js");
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const index_js_2 = require("../address/index.js");
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const index_js_3 = require("../hash/index.js");
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const index_js_4 = require("../transaction/index.js");
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const index_js_5 = require("../utils/index.js");
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const abstract_provider_js_1 = require("./abstract-provider.js");
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const abstract_signer_js_1 = require("./abstract-signer.js");
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const network_js_1 = require("./network.js");
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const subscriber_filterid_js_1 = require("./subscriber-filterid.js");
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const subscriber_polling_js_1 = require("./subscriber-polling.js");
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const Primitive = "bigint,boolean,function,number,string,symbol".split(/,/g);
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//const Methods = "getAddress,then".split(/,/g);
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function deepCopy(value) {
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if (value == null || Primitive.indexOf(typeof (value)) >= 0) {
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return value;
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}
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// Keep any Addressable
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if (typeof (value.getAddress) === "function") {
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return value;
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}
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if (Array.isArray(value)) {
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return (value.map(deepCopy));
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}
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if (typeof (value) === "object") {
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return Object.keys(value).reduce((accum, key) => {
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accum[key] = value[key];
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return accum;
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}, {});
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}
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throw new Error(`should not happen: ${value} (${typeof (value)})`);
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}
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function stall(duration) {
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return new Promise((resolve) => { setTimeout(resolve, duration); });
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}
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function getLowerCase(value) {
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if (value) {
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return value.toLowerCase();
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}
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return value;
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}
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function isPollable(value) {
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return (value && typeof (value.pollingInterval) === "number");
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}
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const defaultOptions = {
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polling: false,
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staticNetwork: null,
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batchStallTime: 10,
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batchMaxSize: (1 << 20),
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batchMaxCount: 100 // 100 requests
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};
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// @TODO: Unchecked Signers
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class JsonRpcSigner extends abstract_signer_js_1.AbstractSigner {
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address;
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constructor(provider, address) {
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super(provider);
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address = (0, index_js_2.getAddress)(address);
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(0, index_js_5.defineProperties)(this, { address });
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}
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connect(provider) {
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(0, index_js_5.assert)(false, "cannot reconnect JsonRpcSigner", "UNSUPPORTED_OPERATION", {
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operation: "signer.connect"
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});
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}
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async getAddress() {
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return this.address;
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}
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// JSON-RPC will automatially fill in nonce, etc. so we just check from
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async populateTransaction(tx) {
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return await this.populateCall(tx);
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}
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// Returns just the hash of the transaction after sent, which is what
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// the bare JSON-RPC API does;
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async sendUncheckedTransaction(_tx) {
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const tx = deepCopy(_tx);
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const promises = [];
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// Make sure the from matches the sender
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if (tx.from) {
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const _from = tx.from;
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promises.push((async () => {
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const from = await (0, index_js_2.resolveAddress)(_from, this.provider);
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(0, index_js_5.assertArgument)(from != null && from.toLowerCase() === this.address.toLowerCase(), "from address mismatch", "transaction", _tx);
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tx.from = from;
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})());
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}
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else {
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tx.from = this.address;
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}
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// The JSON-RPC for eth_sendTransaction uses 90000 gas; if the user
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// wishes to use this, it is easy to specify explicitly, otherwise
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// we look it up for them.
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if (tx.gasLimit == null) {
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promises.push((async () => {
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tx.gasLimit = await this.provider.estimateGas({ ...tx, from: this.address });
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})());
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}
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// The address may be an ENS name or Addressable
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if (tx.to != null) {
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const _to = tx.to;
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promises.push((async () => {
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tx.to = await (0, index_js_2.resolveAddress)(_to, this.provider);
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})());
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}
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// Wait until all of our properties are filled in
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if (promises.length) {
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await Promise.all(promises);
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}
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const hexTx = this.provider.getRpcTransaction(tx);
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return this.provider.send("eth_sendTransaction", [hexTx]);
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}
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async sendTransaction(tx) {
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// This cannot be mined any earlier than any recent block
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const blockNumber = await this.provider.getBlockNumber();
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// Send the transaction
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const hash = await this.sendUncheckedTransaction(tx);
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// Unfortunately, JSON-RPC only provides and opaque transaction hash
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// for a response, and we need the actual transaction, so we poll
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// for it; it should show up very quickly
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return await (new Promise((resolve, reject) => {
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const timeouts = [1000, 100];
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const checkTx = async () => {
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// Try getting the transaction
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const tx = await this.provider.getTransaction(hash);
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if (tx != null) {
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resolve(tx.replaceableTransaction(blockNumber));
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return;
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}
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// Wait another 4 seconds
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this.provider._setTimeout(() => { checkTx(); }, timeouts.pop() || 4000);
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};
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checkTx();
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}));
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}
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async signTransaction(_tx) {
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const tx = deepCopy(_tx);
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// Make sure the from matches the sender
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if (tx.from) {
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const from = await (0, index_js_2.resolveAddress)(tx.from, this.provider);
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(0, index_js_5.assertArgument)(from != null && from.toLowerCase() === this.address.toLowerCase(), "from address mismatch", "transaction", _tx);
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tx.from = from;
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}
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else {
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tx.from = this.address;
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}
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const hexTx = this.provider.getRpcTransaction(tx);
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return await this.provider.send("eth_signTransaction", [hexTx]);
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}
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async signMessage(_message) {
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const message = ((typeof (_message) === "string") ? (0, index_js_5.toUtf8Bytes)(_message) : _message);
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return await this.provider.send("personal_sign", [
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(0, index_js_5.hexlify)(message), this.address.toLowerCase()
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]);
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}
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async signTypedData(domain, types, _value) {
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const value = deepCopy(_value);
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// Populate any ENS names (in-place)
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const populated = await index_js_3.TypedDataEncoder.resolveNames(domain, types, value, async (value) => {
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const address = await (0, index_js_2.resolveAddress)(value);
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(0, index_js_5.assertArgument)(address != null, "TypedData does not support null address", "value", value);
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return address;
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});
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return await this.provider.send("eth_signTypedData_v4", [
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this.address.toLowerCase(),
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JSON.stringify(index_js_3.TypedDataEncoder.getPayload(populated.domain, types, populated.value))
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]);
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}
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async unlock(password) {
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return this.provider.send("personal_unlockAccount", [
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this.address.toLowerCase(), password, null
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]);
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}
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// https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign
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async _legacySignMessage(_message) {
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const message = ((typeof (_message) === "string") ? (0, index_js_5.toUtf8Bytes)(_message) : _message);
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return await this.provider.send("eth_sign", [
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this.address.toLowerCase(), (0, index_js_5.hexlify)(message)
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]);
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}
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}
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exports.JsonRpcSigner = JsonRpcSigner;
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/**
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* The JsonRpcApiProvider is an abstract class and **MUST** be
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* sub-classed.
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*
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* It provides the base for all JSON-RPC-based Provider interaction.
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*
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* Sub-classing Notes:
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* - a sub-class MUST override _send
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* - a sub-class MUST call the `_start()` method once connected
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*/
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class JsonRpcApiProvider extends abstract_provider_js_1.AbstractProvider {
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#options;
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// The next ID to use for the JSON-RPC ID field
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#nextId;
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// Payloads are queued and triggered in batches using the drainTimer
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#payloads;
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#drainTimer;
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#notReady;
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#network;
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#scheduleDrain() {
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if (this.#drainTimer) {
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return;
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}
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// If we aren't using batching, no hard in sending it immeidately
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const stallTime = (this._getOption("batchMaxCount") === 1) ? 0 : this._getOption("batchStallTime");
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this.#drainTimer = setTimeout(() => {
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this.#drainTimer = null;
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const payloads = this.#payloads;
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this.#payloads = [];
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while (payloads.length) {
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// Create payload batches that satisfy our batch constraints
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const batch = [(payloads.shift())];
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while (payloads.length) {
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if (batch.length === this.#options.batchMaxCount) {
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break;
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}
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batch.push((payloads.shift()));
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const bytes = JSON.stringify(batch.map((p) => p.payload));
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if (bytes.length > this.#options.batchMaxSize) {
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payloads.unshift((batch.pop()));
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break;
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}
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}
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// Process the result to each payload
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(async () => {
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const payload = ((batch.length === 1) ? batch[0].payload : batch.map((p) => p.payload));
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this.emit("debug", { action: "sendRpcPayload", payload });
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try {
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const result = await this._send(payload);
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this.emit("debug", { action: "receiveRpcResult", result });
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// Process results in batch order
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for (const { resolve, reject, payload } of batch) {
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// Find the matching result
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const resp = result.filter((r) => (r.id === payload.id))[0];
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// No result; the node failed us in unexpected ways
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if (resp == null) {
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return reject((0, index_js_5.makeError)("no response from server", "BAD_DATA", { value: result, info: { payload } }));
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}
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// The response is an error
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if ("error" in resp) {
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return reject(this.getRpcError(payload, resp));
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}
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// All good; send the result
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resolve(resp.result);
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}
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}
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catch (error) {
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this.emit("debug", { action: "receiveRpcError", error });
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for (const { reject } of batch) {
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// @TODO: augment the error with the payload
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reject(error);
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}
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}
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})();
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}
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}, stallTime);
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}
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constructor(network, options) {
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super(network);
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this.#nextId = 1;
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this.#options = Object.assign({}, defaultOptions, options || {});
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this.#payloads = [];
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this.#drainTimer = null;
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this.#network = null;
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{
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let resolve = null;
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const promise = new Promise((_resolve) => {
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resolve = _resolve;
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});
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this.#notReady = { promise, resolve };
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}
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// Make sure any static network is compatbile with the provided netwrok
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const staticNetwork = this._getOption("staticNetwork");
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if (staticNetwork) {
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(0, index_js_5.assertArgument)(network == null || staticNetwork.matches(network), "staticNetwork MUST match network object", "options", options);
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this.#network = staticNetwork;
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}
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}
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/**
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* Returns the value associated with the option %%key%%.
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*
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* Sub-classes can use this to inquire about configuration options.
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*/
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_getOption(key) {
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return this.#options[key];
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}
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/**
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* Gets the [[Network]] this provider has committed to. On each call, the network
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* is detected, and if it has changed, the call will reject.
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*/
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get _network() {
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(0, index_js_5.assert)(this.#network, "network is not available yet", "NETWORK_ERROR");
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return this.#network;
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}
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/*
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{
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assert(false, "sub-classes must override _send", "UNSUPPORTED_OPERATION", {
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operation: "jsonRpcApiProvider._send"
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});
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}
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*/
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/**
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* Resolves to the non-normalized value by performing %%req%%.
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*
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* Sub-classes may override this to modify behavior of actions,
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* and should generally call ``super._perform`` as a fallback.
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*/
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async _perform(req) {
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// Legacy networks do not like the type field being passed along (which
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// is fair), so we delete type if it is 0 and a non-EIP-1559 network
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if (req.method === "call" || req.method === "estimateGas") {
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let tx = req.transaction;
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if (tx && tx.type != null && (0, index_js_5.getBigInt)(tx.type)) {
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// If there are no EIP-1559 properties, it might be non-EIP-a559
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if (tx.maxFeePerGas == null && tx.maxPriorityFeePerGas == null) {
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const feeData = await this.getFeeData();
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if (feeData.maxFeePerGas == null && feeData.maxPriorityFeePerGas == null) {
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// Network doesn't know about EIP-1559 (and hence type)
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req = Object.assign({}, req, {
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transaction: Object.assign({}, tx, { type: undefined })
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});
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}
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}
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}
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}
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const request = this.getRpcRequest(req);
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if (request != null) {
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return await this.send(request.method, request.args);
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}
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return super._perform(req);
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}
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/**
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* Sub-classes may override this; it detects the *actual* network that
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* we are **currently** connected to.
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*
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* Keep in mind that [[send]] may only be used once [[ready]], otherwise the
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* _send primitive must be used instead.
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*/
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async _detectNetwork() {
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const network = this._getOption("staticNetwork");
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if (network) {
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return network;
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}
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// If we are ready, use ``send``, which enabled requests to be batched
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if (this.ready) {
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return network_js_1.Network.from((0, index_js_5.getBigInt)(await this.send("eth_chainId", [])));
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}
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// We are not ready yet; use the primitive _send
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const payload = {
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id: this.#nextId++, method: "eth_chainId", params: [], jsonrpc: "2.0"
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};
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this.emit("debug", { action: "sendRpcPayload", payload });
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let result;
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try {
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result = (await this._send(payload))[0];
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}
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catch (error) {
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this.emit("debug", { action: "receiveRpcError", error });
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throw error;
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}
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this.emit("debug", { action: "receiveRpcResult", result });
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if ("result" in result) {
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return network_js_1.Network.from((0, index_js_5.getBigInt)(result.result));
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}
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throw this.getRpcError(payload, result);
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}
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/**
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* Sub-classes **MUST** call this. Until [[_start]] has been called, no calls
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* will be passed to [[_send]] from [[send]]. If it is overridden, then
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* ``super._start()`` **MUST** be called.
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*
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* Calling it multiple times is safe and has no effect.
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*/
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_start() {
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if (this.#notReady == null || this.#notReady.resolve == null) {
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return;
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}
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this.#notReady.resolve();
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this.#notReady = null;
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(async () => {
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// Bootstrap the network
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while (this.#network == null) {
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try {
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this.#network = await this._detectNetwork();
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}
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catch (error) {
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console.log("JsonRpcProvider failed to startup; retry in 1s");
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await stall(1000);
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}
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}
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// Start dispatching requests
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this.#scheduleDrain();
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})();
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}
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/**
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* Resolves once the [[_start]] has been called. This can be used in
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* sub-classes to defer sending data until the connection has been
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* established.
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*/
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async _waitUntilReady() {
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if (this.#notReady == null) {
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return;
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}
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return await this.#notReady.promise;
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}
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/**
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* Return a Subscriber that will manage the %%sub%%.
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*
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* Sub-classes may override this to modify the behavior of
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* subscription management.
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*/
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_getSubscriber(sub) {
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// Pending Filters aren't availble via polling
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if (sub.type === "pending") {
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return new subscriber_filterid_js_1.FilterIdPendingSubscriber(this);
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}
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if (sub.type === "event") {
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if (this._getOption("polling")) {
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return new subscriber_polling_js_1.PollingEventSubscriber(this, sub.filter);
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}
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return new subscriber_filterid_js_1.FilterIdEventSubscriber(this, sub.filter);
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}
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// Orphaned Logs are handled automatically, by the filter, since
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// logs with removed are emitted by it
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if (sub.type === "orphan" && sub.filter.orphan === "drop-log") {
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return new abstract_provider_js_1.UnmanagedSubscriber("orphan");
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}
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return super._getSubscriber(sub);
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}
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/**
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* Returns true only if the [[_start]] has been called.
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*/
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get ready() { return this.#notReady == null; }
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/**
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* Returns %%tx%% as a normalized JSON-RPC transaction request,
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* which has all values hexlified and any numeric values converted
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* to Quantity values.
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*/
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getRpcTransaction(tx) {
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const result = {};
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// JSON-RPC now requires numeric values to be "quantity" values
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["chainId", "gasLimit", "gasPrice", "type", "maxFeePerGas", "maxPriorityFeePerGas", "nonce", "value"].forEach((key) => {
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if (tx[key] == null) {
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return;
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}
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let dstKey = key;
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if (key === "gasLimit") {
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dstKey = "gas";
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}
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result[dstKey] = (0, index_js_5.toQuantity)((0, index_js_5.getBigInt)(tx[key], `tx.${key}`));
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});
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// Make sure addresses and data are lowercase
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["from", "to", "data"].forEach((key) => {
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if (tx[key] == null) {
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return;
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}
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result[key] = (0, index_js_5.hexlify)(tx[key]);
|
|
});
|
|
// Normalize the access list object
|
|
if (tx.accessList) {
|
|
result["accessList"] = (0, index_js_4.accessListify)(tx.accessList);
|
|
}
|
|
return result;
|
|
}
|
|
/**
|
|
* Returns the request method and arguments required to perform
|
|
* %%req%%.
|
|
*/
|
|
getRpcRequest(req) {
|
|
switch (req.method) {
|
|
case "chainId":
|
|
return { method: "eth_chainId", args: [] };
|
|
case "getBlockNumber":
|
|
return { method: "eth_blockNumber", args: [] };
|
|
case "getGasPrice":
|
|
return { method: "eth_gasPrice", args: [] };
|
|
case "getBalance":
|
|
return {
|
|
method: "eth_getBalance",
|
|
args: [getLowerCase(req.address), req.blockTag]
|
|
};
|
|
case "getTransactionCount":
|
|
return {
|
|
method: "eth_getTransactionCount",
|
|
args: [getLowerCase(req.address), req.blockTag]
|
|
};
|
|
case "getCode":
|
|
return {
|
|
method: "eth_getCode",
|
|
args: [getLowerCase(req.address), req.blockTag]
|
|
};
|
|
case "getStorage":
|
|
return {
|
|
method: "eth_getStorageAt",
|
|
args: [
|
|
getLowerCase(req.address),
|
|
("0x" + req.position.toString(16)),
|
|
req.blockTag
|
|
]
|
|
};
|
|
case "broadcastTransaction":
|
|
return {
|
|
method: "eth_sendRawTransaction",
|
|
args: [req.signedTransaction]
|
|
};
|
|
case "getBlock":
|
|
if ("blockTag" in req) {
|
|
return {
|
|
method: "eth_getBlockByNumber",
|
|
args: [req.blockTag, !!req.includeTransactions]
|
|
};
|
|
}
|
|
else if ("blockHash" in req) {
|
|
return {
|
|
method: "eth_getBlockByHash",
|
|
args: [req.blockHash, !!req.includeTransactions]
|
|
};
|
|
}
|
|
break;
|
|
case "getTransaction":
|
|
return {
|
|
method: "eth_getTransactionByHash",
|
|
args: [req.hash]
|
|
};
|
|
case "getTransactionReceipt":
|
|
return {
|
|
method: "eth_getTransactionReceipt",
|
|
args: [req.hash]
|
|
};
|
|
case "call":
|
|
return {
|
|
method: "eth_call",
|
|
args: [this.getRpcTransaction(req.transaction), req.blockTag]
|
|
};
|
|
case "estimateGas": {
|
|
return {
|
|
method: "eth_estimateGas",
|
|
args: [this.getRpcTransaction(req.transaction)]
|
|
};
|
|
}
|
|
case "getLogs":
|
|
if (req.filter && req.filter.address != null) {
|
|
if (Array.isArray(req.filter.address)) {
|
|
req.filter.address = req.filter.address.map(getLowerCase);
|
|
}
|
|
else {
|
|
req.filter.address = getLowerCase(req.filter.address);
|
|
}
|
|
}
|
|
return { method: "eth_getLogs", args: [req.filter] };
|
|
}
|
|
return null;
|
|
}
|
|
/**
|
|
* Returns an ethers-style Error for the given JSON-RPC error
|
|
* %%payload%%, coalescing the various strings and error shapes
|
|
* that different nodes return, coercing them into a machine-readable
|
|
* standardized error.
|
|
*/
|
|
getRpcError(payload, _error) {
|
|
const { method } = payload;
|
|
const { error } = _error;
|
|
if (method === "eth_estimateGas" && error.message) {
|
|
const msg = error.message;
|
|
if (!msg.match(/revert/i) && msg.match(/insufficient funds/i)) {
|
|
return (0, index_js_5.makeError)("insufficient funds", "INSUFFICIENT_FUNDS", {
|
|
transaction: (payload.params[0]),
|
|
info: { payload, error }
|
|
});
|
|
}
|
|
}
|
|
if (method === "eth_call" || method === "eth_estimateGas") {
|
|
const result = spelunkData(error);
|
|
const e = index_js_1.AbiCoder.getBuiltinCallException((method === "eth_call") ? "call" : "estimateGas", (payload.params[0]), (result ? result.data : null));
|
|
e.info = { error, payload };
|
|
return e;
|
|
}
|
|
// Only estimateGas and call can return arbitrary contract-defined text, so now we
|
|
// we can process text safely.
|
|
const message = JSON.stringify(spelunkMessage(error));
|
|
if (typeof (error.message) === "string" && error.message.match(/user denied|ethers-user-denied/i)) {
|
|
const actionMap = {
|
|
eth_sign: "signMessage",
|
|
personal_sign: "signMessage",
|
|
eth_signTypedData_v4: "signTypedData",
|
|
eth_signTransaction: "signTransaction",
|
|
eth_sendTransaction: "sendTransaction",
|
|
eth_requestAccounts: "requestAccess",
|
|
wallet_requestAccounts: "requestAccess",
|
|
};
|
|
return (0, index_js_5.makeError)(`user rejected action`, "ACTION_REJECTED", {
|
|
action: (actionMap[method] || "unknown"),
|
|
reason: "rejected",
|
|
info: { payload, error }
|
|
});
|
|
}
|
|
if (method === "eth_sendRawTransaction" || method === "eth_sendTransaction") {
|
|
const transaction = (payload.params[0]);
|
|
if (message.match(/insufficient funds|base fee exceeds gas limit/i)) {
|
|
return (0, index_js_5.makeError)("insufficient funds for intrinsic transaction cost", "INSUFFICIENT_FUNDS", {
|
|
transaction, info: { error }
|
|
});
|
|
}
|
|
if (message.match(/nonce/i) && message.match(/too low/i)) {
|
|
return (0, index_js_5.makeError)("nonce has already been used", "NONCE_EXPIRED", { transaction, info: { error } });
|
|
}
|
|
// "replacement transaction underpriced"
|
|
if (message.match(/replacement transaction/i) && message.match(/underpriced/i)) {
|
|
return (0, index_js_5.makeError)("replacement fee too low", "REPLACEMENT_UNDERPRICED", { transaction, info: { error } });
|
|
}
|
|
if (message.match(/only replay-protected/i)) {
|
|
return (0, index_js_5.makeError)("legacy pre-eip-155 transactions not supported", "UNSUPPORTED_OPERATION", {
|
|
operation: method, info: { transaction, info: { error } }
|
|
});
|
|
}
|
|
}
|
|
if (message.match(/the method .* does not exist/i)) {
|
|
return (0, index_js_5.makeError)("unsupported operation", "UNSUPPORTED_OPERATION", {
|
|
operation: payload.method, info: { error }
|
|
});
|
|
}
|
|
return (0, index_js_5.makeError)("could not coalesce error", "UNKNOWN_ERROR", { error });
|
|
}
|
|
/**
|
|
* Requests the %%method%% with %%params%% via the JSON-RPC protocol
|
|
* over the underlying channel. This can be used to call methods
|
|
* on the backend that do not have a high-level API within the Provider
|
|
* API.
|
|
*
|
|
* This method queues requests according to the batch constraints
|
|
* in the options, assigns the request a unique ID.
|
|
*
|
|
* **Do NOT override** this method in sub-classes; instead
|
|
* override [[_send]] or force the options values in the
|
|
* call to the constructor to modify this method's behavior.
|
|
*/
|
|
send(method, params) {
|
|
// @TODO: cache chainId?? purge on switch_networks
|
|
const id = this.#nextId++;
|
|
const promise = new Promise((resolve, reject) => {
|
|
this.#payloads.push({
|
|
resolve, reject,
|
|
payload: { method, params, id, jsonrpc: "2.0" }
|
|
});
|
|
});
|
|
// If there is not a pending drainTimer, set one
|
|
this.#scheduleDrain();
|
|
return promise;
|
|
}
|
|
/**
|
|
* Resolves to the [[Signer]] account for %%address%% managed by
|
|
* the client.
|
|
*
|
|
* If the %%address%% is a number, it is used as an index in the
|
|
* the accounts from [[listAccounts]].
|
|
*
|
|
* This can only be used on clients which manage accounts (such as
|
|
* Geth with imported account or MetaMask).
|
|
*
|
|
* Throws if the account doesn't exist.
|
|
*/
|
|
async getSigner(address) {
|
|
if (address == null) {
|
|
address = 0;
|
|
}
|
|
const accountsPromise = this.send("eth_accounts", []);
|
|
// Account index
|
|
if (typeof (address) === "number") {
|
|
const accounts = (await accountsPromise);
|
|
if (address >= accounts.length) {
|
|
throw new Error("no such account");
|
|
}
|
|
return new JsonRpcSigner(this, accounts[address]);
|
|
}
|
|
const { accounts } = await (0, index_js_5.resolveProperties)({
|
|
network: this.getNetwork(),
|
|
accounts: accountsPromise
|
|
});
|
|
// Account address
|
|
address = (0, index_js_2.getAddress)(address);
|
|
for (const account of accounts) {
|
|
if ((0, index_js_2.getAddress)(account) === address) {
|
|
return new JsonRpcSigner(this, address);
|
|
}
|
|
}
|
|
throw new Error("invalid account");
|
|
}
|
|
async listAccounts() {
|
|
const accounts = await this.send("eth_accounts", []);
|
|
return accounts.map((a) => new JsonRpcSigner(this, a));
|
|
}
|
|
}
|
|
exports.JsonRpcApiProvider = JsonRpcApiProvider;
|
|
class JsonRpcApiPollingProvider extends JsonRpcApiProvider {
|
|
#pollingInterval;
|
|
constructor(network, options) {
|
|
super(network, options);
|
|
this.#pollingInterval = 4000;
|
|
}
|
|
_getSubscriber(sub) {
|
|
const subscriber = super._getSubscriber(sub);
|
|
if (isPollable(subscriber)) {
|
|
subscriber.pollingInterval = this.#pollingInterval;
|
|
}
|
|
return subscriber;
|
|
}
|
|
/**
|
|
* The polling interval (default: 4000 ms)
|
|
*/
|
|
get pollingInterval() { return this.#pollingInterval; }
|
|
set pollingInterval(value) {
|
|
if (!Number.isInteger(value) || value < 0) {
|
|
throw new Error("invalid interval");
|
|
}
|
|
this.#pollingInterval = value;
|
|
this._forEachSubscriber((sub) => {
|
|
if (isPollable(sub)) {
|
|
sub.pollingInterval = this.#pollingInterval;
|
|
}
|
|
});
|
|
}
|
|
}
|
|
exports.JsonRpcApiPollingProvider = JsonRpcApiPollingProvider;
|
|
/**
|
|
* The JsonRpcProvider is one of the most common Providers,
|
|
* which performs all operations over HTTP (or HTTPS) requests.
|
|
*
|
|
* Events are processed by polling the backend for the current block
|
|
* number; when it advances, all block-base events are then checked
|
|
* for updates.
|
|
*/
|
|
class JsonRpcProvider extends JsonRpcApiPollingProvider {
|
|
#connect;
|
|
constructor(url, network, options) {
|
|
if (url == null) {
|
|
url = "http:/\/localhost:8545";
|
|
}
|
|
super(network, options);
|
|
if (typeof (url) === "string") {
|
|
this.#connect = new index_js_5.FetchRequest(url);
|
|
}
|
|
else {
|
|
this.#connect = url.clone();
|
|
}
|
|
}
|
|
_getConnection() {
|
|
return this.#connect.clone();
|
|
}
|
|
async send(method, params) {
|
|
// All requests are over HTTP, so we can just start handling requests
|
|
// We do this here rather than the constructor so that we don't send any
|
|
// requests to the network (i.e. eth_chainId) until we absolutely have to.
|
|
await this._start();
|
|
return await super.send(method, params);
|
|
}
|
|
async _send(payload) {
|
|
// Configure a POST connection for the requested method
|
|
const request = this._getConnection();
|
|
request.body = JSON.stringify(payload);
|
|
request.setHeader("content-type", "application/json");
|
|
const response = await request.send();
|
|
response.assertOk();
|
|
let resp = response.bodyJson;
|
|
if (!Array.isArray(resp)) {
|
|
resp = [resp];
|
|
}
|
|
return resp;
|
|
}
|
|
}
|
|
exports.JsonRpcProvider = JsonRpcProvider;
|
|
function spelunkData(value) {
|
|
if (value == null) {
|
|
return null;
|
|
}
|
|
// These *are* the droids we're looking for.
|
|
if (typeof (value.message) === "string" && value.message.match("reverted") && (0, index_js_5.isHexString)(value.data)) {
|
|
return { message: value.message, data: value.data };
|
|
}
|
|
// Spelunk further...
|
|
if (typeof (value) === "object") {
|
|
for (const key in value) {
|
|
const result = spelunkData(value[key]);
|
|
if (result) {
|
|
return result;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
// Might be a JSON string we can further descend...
|
|
if (typeof (value) === "string") {
|
|
try {
|
|
return spelunkData(JSON.parse(value));
|
|
}
|
|
catch (error) { }
|
|
}
|
|
return null;
|
|
}
|
|
function _spelunkMessage(value, result) {
|
|
if (value == null) {
|
|
return;
|
|
}
|
|
// These *are* the droids we're looking for.
|
|
if (typeof (value.message) === "string") {
|
|
result.push(value.message);
|
|
}
|
|
// Spelunk further...
|
|
if (typeof (value) === "object") {
|
|
for (const key in value) {
|
|
_spelunkMessage(value[key], result);
|
|
}
|
|
}
|
|
// Might be a JSON string we can further descend...
|
|
if (typeof (value) === "string") {
|
|
try {
|
|
return _spelunkMessage(JSON.parse(value), result);
|
|
}
|
|
catch (error) { }
|
|
}
|
|
}
|
|
function spelunkMessage(value) {
|
|
const result = [];
|
|
_spelunkMessage(value, result);
|
|
return result;
|
|
}
|
|
//# sourceMappingURL=provider-jsonrpc.js.map
|