I have deployed a contract in rinkeby network. Now I have the address of the contract and ABI of the contract.

    var contract = new web3.eth.Contract(ContractABI, 'ContractAddress')

But now how to call the functions and how to pass the arguments and console.log the return values.

1 Answer 1


First, you need a provider which connects you to the Rinkeby network. It can be MetaMask or infura I have a separate file called 'web3.js' which has this code:

import Web3 from 'web3';

let web3;
if (typeof window !== 'undefined' && typeof window.web3 !== 'undefined') {
  // we check if metamask is running
  web3 = new Web3(window.web3.currentProvider);
} else {
  // set up provider through infura
  const provider = new Web3.providers.HttpProvider(
    // pass url of remote node
    'rinkeby infura link that you receive after signing up'
  web3 = new Web3(provider);


export default web3;

Now comes the trick: Create another file such as contractName.js

import web3 from './web3';

const address = 'your contract addess';  // use quotes! 

const abi = [contractAbi]; 
// contract abi doesn't have quotes an will be something like [{a lot of code}, {a lot of code}, … ];  REMEMBER to add ; or it won't work 
export default new web3.eth.Contract(abi, address);

Now in normal files just call web3 from the file web3.js and you'll be able to call functions from your contract. For example, if your contract has a 'helloWorld()' you will have to use something like


Check web3 documentation for more information

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.