Sign Transaction

Sending a signTransaction requires established connection with user wallet.

Transaction are sent to the client via wallet interface. Client can accept or reject the request. Once client signs transaction, signTransaction() method returns resolved promise with Signed Transaction.

import {
  Keypair,
  LAMPORTS_PER_SOL,
  SystemProgram,
  Transaction,
  VersionedTransaction
} from '@solana/web3.js'

const RECEIVER = Keypair.generate()
const ix = SystemProgram.transfer({
  fromPubkey: alice_keypair.publicKey,
  lamports: LAMPORTS_PER_SOL,
  toPubkey: RECEIVER.publicKey
})
const tx = new Transaction().add(ix)
tx.feePayer = alice_keypair.publicKey
tx.recentBlockhash = recentBlockhash

const signed: VersionedTransaction = await app.signTransaction(tx)