55 lines
1.6 KiB
TypeScript
55 lines
1.6 KiB
TypeScript
"use strict";
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import * as errors from "@ethersproject/errors";
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import { getNetwork, Network, Networkish } from "@ethersproject/networks";
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import { defineReadOnly } from "@ethersproject/properties";
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import { JsonRpcProvider, JsonRpcSigner } from "./json-rpc-provider";
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export class UrlJsonRpcProvider extends JsonRpcProvider {
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readonly apiKey: string;
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constructor(network?: Networkish, apiKey?: string) {
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errors.checkAbstract(new.target, UrlJsonRpcProvider);
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network = getNetwork((network == null) ? "homestead": network);
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apiKey = new.target.getApiKey(apiKey);
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let url = new.target.getUrl(network, apiKey);
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super(url, network);
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defineReadOnly(this, "apiKey", apiKey);
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}
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_startPending(): void {
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errors.warn("WARNING: API provider does not support pending filters");
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}
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getSigner(address?: string): JsonRpcSigner {
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errors.throwError(
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"API provider does not support signing",
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errors.UNSUPPORTED_OPERATION,
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{ operation: "getSigner" }
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);
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return null;
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}
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listAccounts(): Promise<Array<string>> {
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return Promise.resolve([]);
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}
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// Return a defaultApiKey if null, otherwise validate the API key
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static getApiKey(apiKey: string): string {
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return apiKey;
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}
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// Returns the url for the given network and API key
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static getUrl(network: Network, apiKey: string): string {
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return errors.throwError("not implemented; sub-classes must override getUrl", errors.NOT_IMPLEMENTED, {
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operation: "getUrl"
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});
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}
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}
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