50 lines
1.3 KiB
TypeScript
50 lines
1.3 KiB
TypeScript
import { fromHexString, toHexString } from "@chainsafe/ssz";
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import bls from "@chainsafe/bls/switchable";
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import { createBeaconConfig } from "@lodestar/config";
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import { mainnetConfig } from "./constants.js";
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import { networksChainConfig } from "@lodestar/config/networks";
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import fetch from "node-fetch";
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export function concatUint8Array(data: Uint8Array[]) {
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const l = data.reduce((l, d) => l + d.length, 0);
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let result = new Uint8Array(l);
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let offset = 0;
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data.forEach((d) => {
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result.set(d, offset);
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offset += d.length;
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});
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return result;
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}
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export function getDefaultClientConfig() {
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const chainConfig = createBeaconConfig(
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networksChainConfig.mainnet,
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fromHexString(mainnetConfig.genesis_validator_root)
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);
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return {
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genesis: {
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committee: mainnetConfig.committee_pk,
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slot: parseInt(mainnetConfig.slot),
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time: parseInt(mainnetConfig.genesis_time),
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},
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chainConfig,
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n: 1,
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};
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}
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export async function handleGETRequest(
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url: string,
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retry: number = 3
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): Promise<any> {
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if (retry < 0) {
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throw Error(`GET request failed: ${url}`);
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}
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try {
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const ret = await fetch(url);
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return await ret.json();
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} catch (e) {
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console.error(`failed GET request (${url}): ${e.message}`);
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return handleGETRequest(url, retry - 1);
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}
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}
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