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Privy’s ConnectedStandardSolanaWallet object is fully compatible with popular web3 libraries for interfacing wallets, such as @solana/web3js.Read below to learn how to best integrate Privy alongside @solana/web3.js.First find your desired wallet from the wallets array:
import {PublicKey, Transaction, Connection, SystemProgram} from '@solana/web3.js';

const {wallets} = useWallets();
const wallet = wallets[0]; // Replace this with your desired wallet
Then, use this wallet to then send Transactions using the @solana/web3.js Transaction and Connection classes:
// Build out the transaction object for your desired program
// https://solana-foundation.github.io/solana-web3.js/classes/Transaction.html
let transaction = new Transaction();

// Send transaction
console.log(
  await wallet.signAndSendTransaction!({
    chain: 'solana:devnet',
    transaction: new Uint8Array(
      transaction.serialize({
        requireAllSignatures: false,
        verifySignatures: false
      })
    )
  })
);