90 lines
3.2 KiB
TypeScript
90 lines
3.2 KiB
TypeScript
import { defineProperties } from "@ethersproject/properties";
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import { FetchRequest } from "@ethersproject/web";
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import { showThrottleMessage } from "./community.js";
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import { logger } from "./logger.js";
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import { Network } from "./network.js";
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import { StaticJsonRpcProvider } from "./provider-jsonrpc.js";
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import type { ConnectionInfo, ThrottleRetryFunc } from "@ethersproject/web";
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import type { AbstractProvider } from "./abstract-provider.js";
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import type { CommunityResourcable } from "./community.js";
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import type { Networkish } from "./network.js";
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const defaultProjectId = "84842078b09946638c03157f83405213";
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function getHost(name: string): string {
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switch(name) {
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case "homestead":
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return "mainnet.infura.io";
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case "ropsten":
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return "ropsten.infura.io";
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case "rinkeby":
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return "rinkeby.infura.io";
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case "kovan":
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return "kovan.infura.io";
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case "goerli":
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return "goerli.infura.io";
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case "matic":
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return "polygon-mainnet.infura.io";
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case "maticmum":
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return "polygon-mumbai.infura.io";
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case "optimism":
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return "optimism-mainnet.infura.io";
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case "optimism-kovan":
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return "optimism-kovan.infura.io";
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case "arbitrum":
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return "arbitrum-mainnet.infura.io";
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case "arbitrum-rinkeby":
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return "arbitrum-rinkeby.infura.io";
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}
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return logger.throwArgumentError("unsupported network", "network", name);
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}
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export class InfuraProvider extends StaticJsonRpcProvider implements CommunityResourcable {
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readonly projectId!: string;
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readonly projectSecret!: null | string;
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constructor(_network: Networkish = "homestead", projectId?: null | string, projectSecret?: null | string) {
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const network = Network.from(_network);
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if (projectId == null) { projectId = defaultProjectId; }
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if (projectSecret == null) { projectSecret = null; }
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const connection = InfuraProvider.getConnection(network, projectId, projectSecret);
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super(connection, network);
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defineProperties<InfuraProvider>(this, { projectId, projectSecret });
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}
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_getProvider(chainId: number): AbstractProvider {
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try {
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return new InfuraProvider(chainId, this.projectId, this.projectSecret);
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} catch (error) { }
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return super._getProvider(chainId);
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}
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static getConnection(network: Network, projectId?: null | string, projectSecret?: null | string): ConnectionInfo {
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if (projectId == null) { projectId = defaultProjectId; }
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if (projectSecret == null) { projectSecret = null; }
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const request = new FetchRequest(`https:/\/${ getHost(network.name) }/v3/${ projectId }`);
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request.allowGzip = true;
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if (projectSecret) { request.setCredentials("", projectSecret); }
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const throttleRetry: ThrottleRetryFunc = async (request, response, attempt) => {
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if (projectId === defaultProjectId) { showThrottleMessage("InfuraProvider"); }
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return true;
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};
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return { request, throttleRetry };
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}
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isCommunityResource(): boolean {
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return (this.projectId === defaultProjectId);
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}
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}
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