Solana JSONRPC Error Fix: Failed to get transaction with invalid signature
The infamous “invalid signature” error! This issue can occur when using the Solana Web3 library in your JavaScript applications. In this article, we will explain how to fix this error and get a transaction from the Solana JSON-RPC API.
What is JSONRPCE error: Failed to get transaction: invalid signature?
When calling SOLANA_CONNECTION.getTransaction(txHash, { commitment: 'finalized', maxSupportedTransactionVersion: 0 })', if the provided transaction has an invalid signature, the library will throw a 'JSONRPCError' with the following message:
{
"error": {
"code": "invalidSignature",
"Message": "Invalid signature"
}
}
Why does this happen?
There are several reasons why an invalid signature error can occur. Here are some possible causes:
- Transaction with zero version: If the transaction's 'maxSupportedTransactionVersion' is 0, the Solana JSON-RPC API will throw an error.
- Invalid or missing commitments: Make sure all required commitments (e.g., "completed", "confirmed", etc.) are present and valid.
- Transaction hash issues: Make sure the transaction hash used is correct.
Troubleshooting
To troubleshoot this error, follow these steps:
- Check transaction version: Ensure that the maxSupportedTransactionVersion’ parameter is set to a non-zero value for your use case. You can find more information about the available versions in the [Solana documentation](
- Check transactions: Check your solana.json file (or equivalent) to make sure that all required commitments are present and valid.
- Update Transaction Hash
: If you are using a new or updated version of Solana, update the transaction hash in your code accordingly.
Resolution Example
const solana = require('(solana');
// Create a Solana connection
const connection = new solana.Connection(solana.Key.fromUint32Array(new Uint8Array([0x01, 0x02, 0x03])), 'mainnet-beta-1');
try {
// Get the transaction hash
const txHash = await connection.getTransaction('your_transaction_hash_here', { commit: 'finalized' }).id;
// Process the transaction
console.log(Transaction ID: ${txHash.id});
} catch (error) {
console.error(error);
}
In this example, be sure to replace “your_transaction_hash_here” with the actual hash you are using.
Additional tips
- Update your Solana dependencies regularly to ensure you have the latest information on available versions and potential issues.
- Consider implementing a retry mechanism or error handling strategy to avoid crashing your application in case of unexpected errors.
By following these steps, you should be able to resolve the “invalid signature” error from the Solana Web3 library. If you are still having problems, don’t hesitate to ask for further assistance!