72 lines
2.4 KiB
TypeScript
72 lines
2.4 KiB
TypeScript
|
import { defineProperties } from "@ethersproject/properties";
|
||
|
|
import { FetchRequest } from "@ethersproject/web";
|
||
|
|
|
||
|
|
import { AbstractProvider } from "./abstract-provider.js";
|
||
|
|
import { showThrottleMessage } from "./community.js";
|
||
|
|
import { logger } from "./logger.js";
|
||
|
|
import { Network } from "./network.js";
|
||
|
|
import { StaticJsonRpcProvider } from "./provider-jsonrpc.js";
|
||
|
|
|
||
|
|
import type { ConnectionInfo, ThrottleRetryFunc } from "@ethersproject/web";
|
||
|
|
|
||
|
|
import type { CommunityResourcable } from "./community.js";
|
||
|
|
import type { Networkish } from "./network.js";
|
||
|
|
|
||
|
|
|
||
|
|
const defaultApiKey = "9f7d929b018cdffb338517efa06f58359e86ff1ffd350bc889738523659e7972";
|
||
|
|
|
||
|
|
function getHost(name: string): string {
|
||
|
|
switch (name) {
|
||
|
|
case "homestead":
|
||
|
|
return "rpc.ankr.com/eth";
|
||
|
|
case "matic":
|
||
|
|
return "rpc.ankr.com/polygon";
|
||
|
|
case "arbitrum":
|
||
|
|
return "rpc.ankr.com/arbitrum";
|
||
|
|
}
|
||
|
|
return logger.throwArgumentError("unsupported network", "network", name);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
export class AnkrProvider extends StaticJsonRpcProvider implements CommunityResourcable {
|
||
|
|
readonly apiKey!: string;
|
||
|
|
|
||
|
|
constructor(_network: Networkish = "homestead", apiKey?: null | string) {
|
||
|
|
const network = Network.from(_network);
|
||
|
|
if (apiKey == null) { apiKey = defaultApiKey; }
|
||
|
|
|
||
|
|
const connection = AnkrProvider.getConnection(network, apiKey);
|
||
|
|
super(connection, network);
|
||
|
|
|
||
|
|
defineProperties<AnkrProvider>(this, { apiKey });
|
||
|
|
|
||
|
|
// Ankr does not support filterId, so we force polling
|
||
|
|
super._setOptions({ polling: true });
|
||
|
|
}
|
||
|
|
|
||
|
|
_getProvider(chainId: number): AbstractProvider {
|
||
|
|
try {
|
||
|
|
return new AnkrProvider(chainId, this.apiKey);
|
||
|
|
} catch (error) { }
|
||
|
|
return super._getProvider(chainId);
|
||
|
|
}
|
||
|
|
|
||
|
|
static getConnection(network: Network, apiKey?: null | string): ConnectionInfo {
|
||
|
|
if (apiKey == null) { apiKey = defaultApiKey; }
|
||
|
|
|
||
|
|
const request = new FetchRequest(`https:/\/${ getHost(network.name) }/${ apiKey }`);
|
||
|
|
request.allowGzip = true;
|
||
|
|
|
||
|
|
const throttleRetry: ThrottleRetryFunc = async (request, response, attempt) => {
|
||
|
|
if (apiKey === defaultApiKey) { showThrottleMessage("AnkrProvider"); }
|
||
|
|
return true;
|
||
|
|
};
|
||
|
|
|
||
|
|
return { request, throttleRetry };
|
||
|
|
}
|
||
|
|
|
||
|
|
isCommunityResource(): boolean {
|
||
|
|
return (this.apiKey === defaultApiKey);
|
||
|
|
}
|
||
|
|
}
|