Signing and Sending Transactions with Solana

• signAndSendTransaction: Sign and send a transaction. Sponsors gas automatically when SVM Gas Sponsorship is enabled in project settings and the wallet supports it; otherwise sends a regular transaction.
• signAndSendSponsoredTransaction: Sign and send a sponsored transaction. Throws if sponsorship is not available.
• signTransaction: Sign a transaction
• signAllTransactions: Sign multiple transactions

​

Usage

import {
  signAndSendTransaction,
  signAndSendSponsoredTransaction,
  signTransaction,
  signAllTransactions,
} from '@dynamic-labs-sdk/solana';

const sendTransaction = async (walletAccount, transaction) => {
  const { signature } = await signAndSendTransaction({ transaction, walletAccount });
  console.log('Transaction sent successfully.', signature);
};

const sendSponsoredTransaction = async (walletAccount, transaction) => {
  const { signature } = await signAndSendSponsoredTransaction({ transaction, walletAccount });
  console.log('Sponsored transaction sent successfully.', signature);
};

const signTx = async (walletAccount, transaction) => {
  const { signedTransaction } = await signTransaction({ transaction, walletAccount });
  console.log('Transaction signed successfully.', signedTransaction);
};

const signTransactions = async (walletAccount, transactions) => {
  const { signedTransactions } = await signAllTransactions({ transactions, walletAccount });
  console.log('Transactions signed successfully.', signedTransactions);
};

import { signAndSendTransaction } from '@dynamic-labs-sdk/solana';
import { useWalletAccounts } from '@dynamic-labs-sdk/react-hooks';
import { useState } from 'react';

function SendSolanaButton({ transaction }) {
  const walletAccounts = useWalletAccounts();
  const walletAccount = walletAccounts[0];
  const [signature, setSignature] = useState('');

  const handleSend = async () => {
    if (!walletAccount) return;
    const { signature } = await signAndSendTransaction({ transaction, walletAccount });
    setSignature(signature);
    console.log('Transaction sent:', signature);
  };

  return (
    <div>
      <button onClick={handleSend} disabled={!walletAccount}>
        Send Transaction
      </button>
      {signature && <p>Signature: {signature}</p>}
    </div>
  );
}

​

Gas Sponsorship

• 'auto' (default): sponsor when project settings and the wallet support it, otherwise send a regular transaction.
• 'off': never sponsor, regardless of project settings.

// Explicitly skip sponsorship for this call.
const { signature } = await signAndSendTransaction({
  sponsorshipMode: 'off',
  transaction,
  walletAccount,
});

​

Error Handling

• If the specified wallet account is not a SolanaWalletAccount, it will throw a NotSolanaProviderError error.
• If the specified wallet account is not available for signing (e.g. wallet is an external wallet and the specific account is not the active one in the wallet app, or not connected to your app), it will throw a WalletAccountNotSelectedError error, stating what is the expected account address to be used, and the active account address in the wallet app (if available).
• If signAndSendSponsoredTransaction is called on a wallet that does not support sponsorship (e.g. an external wallet), it will throw a SponsorTransactionError.

​

Related functions

• SVM Gas Sponsorship
• Getting Solana connection
• Adding Solana extensions