WSS and HTTPS RPC Connection Tester

rpc_tester.js

const Web3 = require('web3');

const RPC_LIST = [
    "wss://bsc-ws-node.nariox.org:443",
    "https://rpc.ankr.com/eth",
]

async function main() {
    for (const rpcUrl of RPC_LIST) {
        let provider;
        if (rpcUrl.startsWith("wss://")) {
            provider = new Web3.providers.WebsocketProvider(rpcUrl, {
                reconnect: {
                    auto: true,
                    delay: 5000,
                    maxAttempts: 3
                }
            });
        } else if (rpcUrl.startsWith("https://")) {
            provider = new Web3.providers.HttpProvider(rpcUrl);
        } else return;

        const web3 = new Web3(provider);
        web3.eth.getBlockNumber().then(async (blockNumber) => {
            console.log(rpcUrl + ' is usable: ' + blockNumber);
        })
    }
}

main().then(async () => {
    // do nothing
}).catch((err) => {
    process.exit(1);
});