90 lines
3.2 KiB
TypeScript
90 lines
3.2 KiB
TypeScript
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import { AnkrProvider } from "./provider-ankr.js";
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import { AlchemyProvider } from "./provider-alchemy.js";
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import { CloudflareProvider } from "./provider-cloudflare.js";
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import { EtherscanProvider } from "./provider-etherscan.js";
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import { InfuraProvider } from "./provider-infura.js";
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//import { PocketProvider } from "./provider-pocket.js";
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import { FallbackProvider } from "./provider-fallback.js";
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import { JsonRpcProvider } from "./provider-jsonrpc.js";
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import { WebSocketProvider } from "./provider-websocket.js";
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import type { AbstractProvider } from "./abstract-provider.js";
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import type { Networkish } from "./network.js";
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import { WebSocketLike } from "./provider-websocket.js";
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function isWebSocketLike(value: any): value is WebSocketLike {
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return (value && typeof(value.send) === "function" &&
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typeof(value.close) === "function");
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}
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export function getDefaultProvider(network: string | Networkish | WebSocketLike, options?: any): AbstractProvider {
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if (options == null) { options = { }; }
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if (typeof(network) === "string" && network.match(/^https?:/)) {
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return new JsonRpcProvider(network);
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}
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if (typeof(network) === "string" && network.match(/^wss?:/) || isWebSocketLike(network)) {
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return new WebSocketProvider(network);
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}
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const providers: Array<AbstractProvider> = [ ];
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if (options.alchemy !== "-") {
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try {
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providers.push(new AlchemyProvider(network, options.alchemy));
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} catch (error) { console.log(error); }
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}
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if (options.ankr !== "-") {
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try {
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providers.push(new AnkrProvider(network, options.ankr));
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} catch (error) { console.log(error); }
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}
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if (options.cloudflare !== "-") {
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try {
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providers.push(new CloudflareProvider(network));
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} catch (error) { console.log(error); }
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}
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if (options.etherscan !== "-") {
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try {
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providers.push(new EtherscanProvider(network, options.etherscan));
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} catch (error) { console.log(error); }
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}
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if (options.infura !== "-") {
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try {
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let projectId = options.infura;
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let projectSecret: undefined | string = undefined;
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if (typeof(projectId) === "object") {
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projectSecret = projectId.projectSecret;
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projectId = projectId.projectId;
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}
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providers.push(new InfuraProvider(network, projectId, projectSecret));
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} catch (error) { console.log(error); }
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}
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/*
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if (options.pocket !== "-") {
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try {
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let appId = options.pocket;
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let secretKey: undefined | string = undefined;
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let loadBalancer: undefined | boolean = undefined;
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if (typeof(appId) === "object") {
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loadBalancer = !!appId.loadBalancer;
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secretKey = appId.secretKey;
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appId = appId.appId;
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}
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providers.push(new PocketProvider(network, appId, secretKey, loadBalancer));
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} catch (error) { console.log(error); }
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}
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*/
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if (providers.length === 0) { throw new Error("TODO"); }
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if (providers.length === 1) { return providers[0]; }
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return new FallbackProvider(providers);
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}
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