Understanding web3 transactions with Metamask
As a Web3 developer, you are probably familiar with the basics of intelligent contracts and transactions of Ethereum. However, sometimes you can encounter mistakes when trying to execute unsuccessful transactions using the built -in API of Web3. In this article, we will deepen the specifics of receiving the error code “T3” from an unsuccessful transaction in Web3.
What is T3 transaction?
In Ethereum, each transaction has three different conditions:
0x00: successful
0x01: Failure (for example because of invalid signature)
0x02: reverted
The error code “T3” corresponds to the refusal status 2.
Metamask and Web3 transactions
Metamask is a popular browser expansion that allows you to interact with Ethereum blockchain without directly connecting to your local machine. When you use Metamask, you can make transactions just as you would do in the context menu on a web page or by clicking the “Send” button.
Receive an error code in T3 from unsuccessful transactions
To remove unsuccessful transactions and get the T3 error code, follow these steps:
Step 1: Sign in to Metamask
Make sure you log in to your Metamask account. You can do this by clicking on the Metamask icon (usually represented as a compass) or by accessing the settings menu and choosing “accounts”.
Step 2: Use web3.eth.gettransction with” status “option
Try using Web3.eth.gettransction to bring transaction data, including error code. Here’s an example:
`javascript
CONST Web3 = New Web3 (Window.Thereum);
// try a transaction
Asynchronic function trytransction () {
CONST TX = Wait Web3.ETH.TRANSAction (‘MySmartContract’, {
By: “Youraddress”,
Gaslimit: 200000,
Gasprice: 20, // or other value
});
If (tx.status) {
Console.log (transaction successful! Status: $ {tx.status});
Return TX;
} Else {
// attempt to get an error code in T3
Const TransactionDetails = Wait Web3.eth.gettransction (TX.ID);
IF (transactdetails.Status === ‘0XT3’) {
Console.log (“received error code in T3!”);
return of transaction activities;
}
}
// return zero for an unsuccessful or unknown transaction
Return Null;
}
`
Step 3: Use web3.eth.gettransctionreceipt with” Statusoption
Alternatively, you can useWeb3.eth.gettransctionreceiptto bring details of the transaction from the transaction. In this case, you can look for error codeT3:
javascript
CONST Web3 = New Web3 (Window.Thereum);
// try a transaction
Asynchronic function trytransction () {
CONST TX = Wait Web3.ETH.TRANSAction (‘MySmartContract’, {
By: “Youraddress”,
Gaslimit: 200000,
Gasprice: 20, // or other value
});
If (tx.status) {
Console.log (transaction successful! Status: $ {tx.status});
Return TX;
} Else {
CONST DECIPT = Wait Web3.eth.gettransctionreceipt (TX.Hash);
if (capipt.error && Cepipt.error.code == ‘t3’) {
Console.log (“received error code in T3!”);
return receipt;
}
}
// return zero for an unsuccessful or unknown transaction
Return Null;
}
`
Conclusion
Following these steps, you should be able to extract the T3 error code from unsuccessful transactions using API on Web3. Be sure to test and optimize your code to deal with different scenarios and extreme cases.
Resources
If you are still facing problems or need additional help, see the following resources:
- Ethereum Developer Documentation: <
- Metamask Documentation: <
