@lodestar/prover/lib/cli/cmds/start/options.js

A Typescript implementation of the Ethereum Consensus light client

import { DEFAULT_PROXY_REQUEST_TIMEOUT } from "../../../constants.js";
import { LCTransport } from "../../../interfaces.js";
import { alwaysAllowedMethods } from "../../../utils/process.js";
export const startOptions = {
    port: {
        description: "Port number to start the proxy.",
        type: "number",
        default: 8080,
    },
    executionRpcUrl: {
        description: "RPC url for the execution node.",
        type: "string",
        demandOption: true,
        group: "execution",
    },
    unverifiedWhitelist: {
        description: `Methods which are allowed to forward. If not provided, all methods are allowed. ${alwaysAllowedMethods.join(",")} are always allowed.`,
        type: "array",
        demandOption: false,
        group: "execution",
    },
    requestTimeout: {
        description: "Number of ms to wait for a response from the execution node.",
        default: DEFAULT_PROXY_REQUEST_TIMEOUT,
        type: "number",
        demandOption: false,
        group: "execution",
    },
    beaconUrls: {
        description: "Urls of the beacon nodes to connect to.",
        type: "array",
        string: true,
        coerce: (urls) => 
        // Parse ["url1,url2"] to ["url1", "url2"]
        urls.flatMap((item) => item.split(",")),
        demandOption: true,
        group: "beacon",
    },
    wsCheckpoint: {
        description: "The trusted checkpoint root to start the lightclient. If not provided will initialize from the latest finalized slot. It shouldn't be older than weak subjectivity period",
        type: "string",
        demandOption: false,
        group: "beacon",
    },
};
export function parseStartArgs(args) {
    // Remove undefined values to allow deepmerge to inject default values downstream
    return {
        port: args.port,
        executionRpcUrl: args.executionRpcUrl,
        transport: LCTransport.Rest,
        urls: args.beaconUrls ?? [],
        wsCheckpoint: args.wsCheckpoint,
        unverifiedWhitelist: args.unverifiedWhitelist,
        requestTimeout: args.requestTimeout ?? DEFAULT_PROXY_REQUEST_TIMEOUT,
    };
}
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