My code:

const contract = require('truffle-contract');
const fs = require('fs');
const HDWalletProvider = require('truffle-hdwallet-provider');
const Web3 = require('web3');

const fileContents = fs.readFileSync('../../build/contracts/CoincodeToken.json', 'utf8');
const coincodeArtifacts = JSON.parse(fileContents);
const coincode = contract(coincodeArtifacts);

const walletMnemonic = 'god wwe lawsuit tiny mobile door raccoon chaos foil someone city siege';
const walletAPIUrl = 'https://rinkeby.infura.io/Fwp5nmX6Ze5FouVcBlHs';

const provider = new HDWalletProvider(walletMnemonic, walletAPIUrl);

const web3 = new Web3(provider);
coincode.setProvider(new Web3.providers.HttpProvider("https://rinkeby.infura.io/Fwp5nmX6Ze5FouVcBlHr"));

web3.eth.getAccounts(function (err, ac) {
    if (err != null) {
        console.error("There was an error fetching accounts.");
    if (ac.length == 0) {
        console.error("Couldn't get any accounts! Make sure ethereum client is configured correctly.");
    var accounts = ac;
    var account = accounts[0];
    web3.eth.defaultAccount = account;

    coincode.deployed().then(function (instance) {
        return instance.transfer('0xa977575a23c55aaa992cfa585c2efc15b404259b', 2000000000000000000000, {from:account}).then(function (value) {
            value = value / 1000000000000000000;
            console.log("Printing value: " + value);
    }).catch(function (e) {



Error: Invalid JSON RPC response: ""
    at Object.InvalidResponse (/home/pravin-coincode/infura/node_modules/web3/lib/web3/errors.js:38:16)
    at XMLHttpRequest.request.onreadystatechange (/home/pravin-coincode/infura/node_modules/web3/lib/web3/httpprovider.js:125:24)
    at XMLHttpRequestEventTarget.dispatchEvent (/home/pravin-coincode/infura/node_modules/xhr2/lib/xhr2.js:64:18)
    at XMLHttpRequest._setReadyState (/home/pravin-coincode/infura/node_modules/xhr2/lib/xhr2.js:354:12)
    at XMLHttpRequest._onHttpResponseEnd (/home/pravin-coincode/infura/node_modules/xhr2/lib/xhr2.js:509:12)
    at IncomingMessage.<anonymous> (/home/pravin-coincode/infura/node_modules/xhr2/lib/xhr2.js:469:24)
    at IncomingMessage.emit (events.js:187:15)
    at endReadableNT (_stream_readable.js:1090:12)
    at process._tickCallback (internal/process/next_tick.js:63:19)
  • You are using two providers first you use HDWalletProvider when creating web3 but you override in your contract with a normal HttpProvider.
    – Ismael
    Commented Jul 8, 2018 at 2:24

2 Answers 2


Looking at your seed phrase, I don't think god and wwe or on the list of valid seed words. https://github.com/bitcoin/bips/blob/master/bip-0039/english.txt

  • 1
    i manually change this because it is private.. but i'm execute with original seed
    – Rohit Sahu
    Commented Aug 30, 2018 at 10:56

Double check your provider as you are defining it twice and the last character in the url differs

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