How to get balanceOf of tron smart contract

Question

I am using tronlink chrome extension and trying to call balanceOf method of a smart contract. I am very new to smart contract. Unable to find any solution. Please check my code:

let contractDetail = await window.tronWeb.trx.getContract('TG7DLMkJPYeG4QTZ8Qfgk9Mu7ePM5SQpbN');
            let contract = await window.tronWeb.contract(contractDetail.abi.entrys, 'TG7DLMkJPYeG4QTZ8Qfgk9Mu7ePM5SQpbN');
            balance = contract.balanceOf.call('TNkJRejobNuZhV2LiwfGQ7wPNiLtcbDueS');
            console.log(balance)


//Error: Uncaught TypeError: Cannot read property 'call' of undefined

I'm not familiar with tronlink and have no way to check the code, so I'm not going to post it as answer. But it seems like the line should be `contract.balanceOf('
');` since balanceOf() is usually a function on Ethereum tokens. — Petr Hejda, Mar 01 '21 at 18:56

score 2 · Answer 1 · answered Mar 06 '21 at 03:54

2

balanceOf requires one argument.

'balanceOf(address)'

Instead of

contract.balanceOf.call('TNkJRejobNuZhV2LiwfGQ7wPNiLtcbDueS');

You should pass in the address into balanceOf

contract.balanceOf('TNkJRejobNuZhV2LiwfGQ7wPNiLtcbDueS').call();

answered Mar 06 '21 at 03:54

Ming

729
3
10

score -1 · Accepted Answer · answered Apr 14 '22 at 20:54

-1

Use tronWeb.trx.getBalance(CONTRACT_ADDRESS);

Your code should look like

balance = await tronWeb.trx.getBalance('TNkJRejobNuZhV2LiwfGQ7wPNiLtcbDueS');

answered Apr 14 '22 at 20:54

George Michael

14
2

This will return TRX balance of address. Not the token balance of smart contract, presumably TRC20. – Ilya Shevyryaev Jul 02 '22 at 14:13

How to get balanceOf of tron smart contract

2 Answers2