ethers.js/packages/providers/lib.esm/cloudflare-provider.js
2020-07-13 08:03:56 -04:00

48 lines
2.1 KiB
JavaScript

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
import { UrlJsonRpcProvider } from "./url-json-rpc-provider";
import { Logger } from "@ethersproject/logger";
import { version } from "./_version";
const logger = new Logger(version);
export class CloudflareProvider extends UrlJsonRpcProvider {
static getApiKey(apiKey) {
if (apiKey != null) {
logger.throwArgumentError("apiKey not supported for cloudflare", "apiKey", apiKey);
}
return null;
}
static getUrl(network, apiKey) {
let host = null;
switch (network.name) {
case "homestead":
host = "https://cloudflare-eth.com/";
break;
default:
logger.throwArgumentError("unsupported network", "network", arguments[0]);
}
return host;
}
perform(method, params) {
const _super = Object.create(null, {
perform: { get: () => super.perform }
});
return __awaiter(this, void 0, void 0, function* () {
// The Cloudflare provider does not support eth_blockNumber,
// so we get the latest block and pull it from that
if (method === "getBlockNumber") {
const block = yield _super.perform.call(this, "getBlock", { blockTag: "latest" });
return block.number;
}
return _super.perform.call(this, method, params);
});
}
}
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