please am trying to integrate sending any trc20 token using tronlink by clicking a button on my website. I was able to send TRX using the JavaScript code below but I want to be able to send trc-20 like USDT, any help will be highly appreciated. Thanks
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<div>
<input type="text" name="numb" id="numb">
<button onclick="sendtron()">Can you get tronweb from tronlink?</button>
</div>
<script>
function sendtron(){
var obj = setInterval(async ()=>{
if (window.tronWeb && window.tronWeb.defaultAddress.base58) {
clearInterval(obj)
var tronweb = window.tronWeb
var amount = document.querySelector('#numb').value;
var tokens = amount * 1000000
var tx = await tronweb.trx.sendTransaction("TWs2Z7dLMcPnXi9pnWqCUPzAnqUv6T54dy", tokens)
var signedTx = await tronweb.trx.sign(tx)
var broastTx = await tronweb.trx.sendRawTransaction(signedTx)
console.log(broastTx);
}
});
}
</script>
</body>
</html>please am trying to integrate sending any trc20 token using tronlink by clicking a button on my website. I was able to send TRX using the JavaScript code below but I want to be able to send trc-20 like USDT, any help will be highly appreciated. Thanks
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<div>
<input type="text" name="numb" id="numb">
<button onclick="sendtron()">Can you get tronweb from tronlink?</button>
</div>
<script>
function sendtron(){
var obj = setInterval(async ()=>{
if (window.tronWeb && window.tronWeb.defaultAddress.base58) {
clearInterval(obj)
var tronweb = window.tronWeb
var amount = document.querySelector('#numb').value;
var tokens = amount * 1000000
var tx = await tronweb.trx.sendTransaction("TWs2Z7dLMcPnXi9pnWqCUPzAnqUv6T54dy", tokens)
var signedTx = await tronweb.trx.sign(tx)
var broastTx = await tronweb.trx.sendRawTransaction(signedTx)
console.log(broastTx);
}
});
}
</script>
</body>
</html>1 Answer
Reset to default 5TRC20 are actually smart contracts. tronscan USDT link To transfer TRC20 from your address to another address, you will be calling TRC20's transfer function, below is a snippet of Tron USDT's code.
function transfer(address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
require(_value <= balances[msg.sender]);
// SafeMath.sub will throw if there is not enough balance.
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
Transfer(msg.sender, _to, _value);
return true;
}
TronWeb TRC20 Contract Interaction documentation. You can use tronWeb's triggerSmartContract function to create a raw transaction, sign and broadcast.
- create raw transaction
var senderAddress = tronweb.defaultAddress.base58;
var receiverAddress = "TV3nb5HYFe2xBEmyb3ETe93UGkjAhWyzrs";
var amount = 100;
var parameter = [{type:'address',value:receiverAddress},{type:'uint256',value:amount}]
var options = {
feeLimit:100000000
}
const transactionObject = await tronWeb.transactionBuilder.triggerSmartContract(
tronweb.address.toHex(contractAddress),
"transfer(address,uint256)",
options,
parameter,
tronweb.address.toHex(senderAddress)
);
Note: address are all in base58 format, we need to convert it to hex format using tronweb.address.toHex(address) at transactionObject. The parameter variable is where we set the receiver address and amount.
- Sign
var signedTransaction = await tronWeb.trx.sign(transactionObject.transaction);
- Broadcast
var broadcastTransaction = await tronWeb.trx.sendRawTransaction(signedTransaction);
console.log(broadcastTransaction);
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