45 lines
1.4 KiB
TypeScript
45 lines
1.4 KiB
TypeScript
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"use strict";
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import * as errors from "@ethersproject/errors";
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import { Network } from "@ethersproject/networks";
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import { UrlJsonRpcProvider } from "./url-json-rpc-provider";
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// This key was provided to ethers.js by Alchemy to be used by the
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// default provider, but it is recommended that for your own
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// production environments, that you acquire your own API key at:
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// https://dashboard.alchemyapi.io
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const defaultApiKey = "_gg7wSSi0KMBsdKnGVfHDueq6xMB9EkC"
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export class AlchemyProvider extends UrlJsonRpcProvider {
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readonly apiKey: string;
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static getApiKey(apiKey: string): string {
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if (apiKey == null) { return defaultApiKey; }
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return apiKey;
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}
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static getUrl(network: Network, apiKey: string): string {
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let host = null;
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switch (network.name) {
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case "homestead":
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host = "eth-mainnet.alchemyapi.io/jsonrpc/";
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break;
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case "ropsten":
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host = "eth-ropsten.alchemyapi.io/jsonrpc/";
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break;
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case "rinkeby":
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host = "eth-rinkeby.alchemyapi.io/jsonrpc/";
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break;
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case "kovan":
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host = "eth-kovan.alchemyapi.io/jsonrpc/";
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break;
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default:
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errors.throwArgumentError("unsupported network", "network", arguments[0]);
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}
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return ("https:/" + "/" + host + apiKey);
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}
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}
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