Combining Presigned Transactions On Solana Using JavaScript SDK
As a development, you often need to handle transactions on the solana blockchain. One of the most efficient ways to do this is by using the Javascript sdk provided by Solana. In this article, we’ll explore how to combine presigned transactions into one.
What are versioned transactions?
Versioned transactions are an important part of Solana’s Transaction Protocol. . .
Presigned Transactions
Presigned transaction is a pre-signed version of a transaction that can be used to execute it without actually signing it. Presigning a transaction means generating an unsigned transaction that is signed with a public key, but does not include any actual data.
Combining Presigned Transactions
To combine presigned transactions into one, you can use the versionedtransaction objects and add all the versions together as a single transaction.
Here’s an example of how to do this using the Javascript Sdk:
`JavaScript
import {versionedtransaction} from ‘@solana/web3.js’;
Export Const CombineversionedTransactions = (
Rawtransactions: Versionedtransaction [],
Blockhash: String,
Feepayer: Publickey,
) => {
// Create a New Transaction Object
Const tx = new versionedtransaction ();
// Add All Versions of the Transactions to the New Transaction
rawtransactions.foreach ((version) => {
tx.add (version);
});
// Set The Block Hash, Fee Payer, and Other Properties As Needed
// Return The Combined Presigned Transaction
Return TX;
};
`
Using the Combine Transaction Function
Block hash, and fee payer:
`JavaScript
Const combinetransactions = CombineeversionedTransactions (
[
New Versionedtransaction (),
New VersionedTransaction (), // Add Another Version of a Transaction
],
‘Blockhash’,
Feepayer,
);
`
Benefits
Using this Approach Has Several Benefits:
- Reduced overhead: by
.
.
Example Use Case
Here’s an example use case where we combine two versioned transactions:
`JavaScript
import {combineeversionedtransactions} from ‘./combineversionedtransaction.js’;
Const Feepayer = New Publickey (‘Feepayeraddress’);
Const Blockhash = ‘Blockhash’;
Const Transactions = [
New Versionedtransaction (),
New VersionedTransaction (), // Add Another Version of a Transaction
];
CONST combinedtx = CombineeversionedTransactions (
transactions,
Blockhash,
Feepayer,
);
console.log (combinedtx);
`
By using this approach, you can easily combine presented transactions into one and simplify your code. This makes it easier to handle multiple versions of a transaction on the solana blockchain.
