Ethereum: Binance Error -1102 – Mandatory parameter ‘signature’ was not sent, was empty/null, or malformed
As a growing number of users turn to cryptocurrency trading on platforms like Binance, it’s becoming increasingly important for developers to ensure their automated trading bots are functioning correctly. However, issues with the Ethereum API can arise when executing these tasks, resulting in unexpected errors.
One common error that arises during this process is related to the signature parameter required by the Ethereum API. In this article, we’ll delve into the details of what causes this error and provide steps on how to resolve it.
Understanding the Error Code -1102
The Error -1102 typically indicates a problem with the request’s signature, which is an essential component of cryptographic transactions in the Ethereum ecosystem. The Signature parameter is used for verifying the sender’s identity and ensuring authenticity when making transactions on the blockchain.
When encountering this error code, it’s essential to identify the root cause:
- Empty/null or malformed signature: This could be due to incorrect handling of the signature data or missing information that needs to be included in the transaction request.
- Missing required parameters: Ensure all necessary details are present and accounted for during the transaction process.
Resolving the Issue
To fix this issue, follow these steps:
Step 1: Verify Signature Data
First, ensure that you’re using the correct signature data when making transactions. The signature is typically a hash of your public key in the format 0x....
Step 2: Include Required Parameters
When sending a transaction to the Ethereum network, make sure all required parameters are included:
- From: Specify the sender’s address.
- To: Specify the recipient’s address.
- Value: The amount of cryptocurrency you want to send.
- Gas: The gas limit for the transaction.
Step 3: Handle Errors and Exceptions
When executing transactions, it’s crucial to handle any potential errors that may occur. This can include checking the signature, ensuring required parameters are present, or handling exceptions thrown by the Ethereum API.
Example Code Snippet
Here’s an example code snippet demonstrating how to verify a transaction with the eth_sign method and specify required parameters:
const Web3 = require('web3');
const web3 = new Web3(new Web3.providers.HttpProvider('
async function executeTransaction() {
const senderAddress = '0x...'; // Replace with your public key
const recipientAddress = '0x...';
const amount = 10;
const gasLimit = 100000; // The specified value, but adjust as needed
try {
const transactionSignature = await web3.eth.signTransaction({
from: senderAddress,
to: recipientAddress,
value: amount.toString(),
gas: gasLimit
});
const signedTransaction = await web3.eth.sendSignedTransaction(transactionSignature.raw);
console.log(signedTransaction.status);
} catch (error) {
if (error.code === 1102) {
console.error('Invalid or malformed signature provided.');
} else {
throw error;
}
}
}
executeTransaction();
Conclusion
To successfully execute transactions on the Ethereum network, it’s essential to handle errors and exceptions correctly. By verifying the signature data, including required parameters, and handling potential errors, you can ensure your bot executes correctly without encountering issues with the Ethereum API.
