@dappnode/dappnodesdk/dist/utils/verifyEthConnection.js

dappnodesdk is a tool to make the creation of new dappnode packages as simple as possible. It helps to initialize and publish in ethereum blockchain

import { getEthereumUrl } from "./getEthereumUrl.js";
import { CliError } from "../params.js";
import { ethers } from "ethers";
/**
 * Verify the eth connection outside of the eth library to ensure
 * capturing HTTP errors
 * @param ethProvider
 */
export async function verifyEthConnection(ethProvider) {
    if (!ethProvider)
        throw Error("No ethProvider provided");
    const provider = new ethers.JsonRpcProvider(getEthereumUrl(ethProvider));
    try {
        const network = await provider.getNetwork();
        if (!network) {
            throw new CliError(`Could not reach ETH provider at ${ethProvider}`);
        }
    }
    catch (e) {
        if (ethProvider === "dappnode") {
            throw new CliError(`Can't connect to DAppNode, check your VPN connection`);
        }
        else if (ethProvider === "infura") {
            throw new CliError(`Can't connect to Infura's mainnet endpoint`);
        }
        else {
            throw new CliError(`Could not reach ETH provider at ${ethProvider}`);
        }
    }
}
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