79 lines
2.4 KiB
TypeScript
79 lines
2.4 KiB
TypeScript
import {
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defineProperties, FetchRequest, assertArgument
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} from "../utils/index.js";
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import { AbstractProvider } from "./abstract-provider.js";
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import { showThrottleMessage } from "./community.js";
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import { Network } from "./network.js";
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import { JsonRpcProvider } from "./provider-jsonrpc.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 defaultApiKey = "9f7d929b018cdffb338517efa06f58359e86ff1ffd350bc889738523659e7972";
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function getHost(name: string): string {
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switch (name) {
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case "mainnet":
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return "rpc.ankr.com/eth";
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case "ropsten":
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return "rpc.ankr.com/eth_ropsten";
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case "rinkeby":
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return "rpc.ankr.com/eth_rinkeby";
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case "goerli":
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return "rpc.ankr.com/eth_goerli";
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case "matic":
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return "rpc.ankr.com/polygon";
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case "arbitrum":
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return "rpc.ankr.com/arbitrum";
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}
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assertArgument(false, "unsupported network", "network", name);
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}
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export class AnkrProvider extends JsonRpcProvider implements CommunityResourcable {
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readonly apiKey!: string;
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constructor(_network: Networkish = "mainnet", apiKey?: null | string) {
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const network = Network.from(_network);
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if (apiKey == null) { apiKey = defaultApiKey; }
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// Ankr does not support filterId, so we force polling
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const options = { polling: true, staticNetwork: network };
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const request = AnkrProvider.getRequest(network, apiKey);
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super(request, network, options);
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defineProperties<AnkrProvider>(this, { apiKey });
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}
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_getProvider(chainId: number): AbstractProvider {
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try {
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return new AnkrProvider(chainId, this.apiKey);
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} catch (error) { }
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return super._getProvider(chainId);
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}
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static getRequest(network: Network, apiKey?: null | string): FetchRequest {
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if (apiKey == null) { apiKey = defaultApiKey; }
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const request = new FetchRequest(`https:/\/${ getHost(network.name) }/${ apiKey }`);
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request.allowGzip = true;
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if (apiKey === defaultApiKey) {
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request.retryFunc = async (request, response, attempt) => {
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showThrottleMessage("AnkrProvider");
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return true;
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};
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}
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return request;
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}
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isCommunityResource(): boolean {
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return (this.apiKey === defaultApiKey);
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}
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}
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