javascript - How to call a contract method with tron-web - Stack Overflow

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I'm trying to call a simple contract method that just returns a string of data. I've based my code on the example that can be found in the docs => /reference#methodcall

tronWeb.trx.getContract("TFWbGYFVjUMKrHALdU4MnFWNYY9Uc5W9SZ").then(async contract => {
    console.log(contract);
    let abi = contract.abi;
    console.log(abi);
    let c = await tronWeb.contract({
        abi
    });
    let result = await c.getBadgeOwner('something is up').call();
    console.log(result);
});

The difference with what can be found in the docs, is that I'm loading the abi from my loaded contract, instead of hard coding it like in the example.

The error I get is index.js:105 Uncaught (in promise) TypeError: e.forEach is not a function which seems to refer to the abi somehow:

I'm trying to call a simple contract method that just returns a string of data. I've based my code on the example that can be found in the docs => https://developers.tronwork/reference#methodcall

tronWeb.trx.getContract("TFWbGYFVjUMKrHALdU4MnFWNYY9Uc5W9SZ").then(async contract => {
    console.log(contract);
    let abi = contract.abi;
    console.log(abi);
    let c = await tronWeb.contract({
        abi
    });
    let result = await c.getBadgeOwner('something is up').call();
    console.log(result);
});

The difference with what can be found in the docs, is that I'm loading the abi from my loaded contract, instead of hard coding it like in the example.

The error I get is index.js:105 Uncaught (in promise) TypeError: e.forEach is not a function which seems to refer to the abi somehow:

• javascript
• web3js
• tron
• tronweb

Share Improve this question Follow edited Feb 20, 2023 at 20:11 TylerH 21.1k7777 gold badges7979 silver badges112112 bronze badges asked Jan 30, 2019 at 8:51 JorreJorre 17.6k3333 gold badges103103 silver badges147147 bronze badges

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3 Answers 3

Sorted by: Reset to default 6

For anyone tripping over the same beginner mistake, here's how to solve it:

Use contract().at() instead of getContract()

let contract = await tronWeb
        .contract()
        .at("TFWbGYFVjUMKrHALdU4MnFWNYY9Uc5W9SZ")

After that, you can call your contract methods just fine

let currentValue = await contract.getBadgeOwner('something is up').call();

setTimeout(async () => {
   this.myContractOb = await 
   this.tronWeb.contract(myContract).at(this.contractAddress);
},10000);

Using above code with myContract as ABI json object having same issue.

I was doing the same mistake before. This works for me

async function a (){
        let contract = await tronWeb.contract().at("TFWbGYFVjUMKrHALdU4MnFWNYY9Uc5W9SZ")
        //console.log(contract);
        let currentValue = await contract.getBadgeOwner('something is up').call();
        console.log(currentValue);
}

a()

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