ethers.js/packages/providers/lib.esm/alchemy-provider.js
2020-07-13 08:03:56 -04:00

52 lines
2.0 KiB
JavaScript

"use strict";
import { WebSocketProvider } from "./websocket-provider";
import { Logger } from "@ethersproject/logger";
import { version } from "./_version";
const logger = new Logger(version);
import { UrlJsonRpcProvider } from "./url-json-rpc-provider";
// This key was provided to ethers.js by Alchemy to be used by the
// default provider, but it is recommended that for your own
// production environments, that you acquire your own API key at:
// https://dashboard.alchemyapi.io
const defaultApiKey = "_gg7wSSi0KMBsdKnGVfHDueq6xMB9EkC";
export class AlchemyProvider extends UrlJsonRpcProvider {
static getWebSocketProvider(network, apiKey) {
const provider = new AlchemyProvider(network, apiKey);
const url = provider.connection.url.replace(/^http/i, "ws")
.replace(".alchemyapi.", ".ws.alchemyapi.");
return new WebSocketProvider(url, provider.network);
}
static getApiKey(apiKey) {
if (apiKey == null) {
return defaultApiKey;
}
if (apiKey && typeof (apiKey) !== "string") {
logger.throwArgumentError("invalid apiKey", "apiKey", apiKey);
}
return apiKey;
}
static getUrl(network, apiKey) {
let host = null;
switch (network.name) {
case "homestead":
host = "eth-mainnet.alchemyapi.io/v2/";
break;
case "ropsten":
host = "eth-ropsten.alchemyapi.io/v2/";
break;
case "rinkeby":
host = "eth-rinkeby.alchemyapi.io/v2/";
break;
case "goerli":
host = "eth-goerli.alchemyapi.io/v2/";
break;
case "kovan":
host = "eth-kovan.alchemyapi.io/v2/";
break;
default:
logger.throwArgumentError("unsupported network", "network", arguments[0]);
}
return ("https:/" + "/" + host + apiKey);
}
}
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