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React Native
    import { dynamicClient } from '<path to client file>'
    import { PublicKey, SystemProgram, Transaction } from '@solana/web3.js'

    const wallet = dynamicClient.wallets.primary
    if (!wallet) {
    // user is not connected yet
    } else {
    const connection = dynamicClient.solana.getConnection()
    const signer = dynamicClient.solana.getSigner({ wallet })

    const fromKey = new PublicKey(wallet.address)
    const toKey = new PublicKey('<destinationAddress>')
    const amountInLamports = 1_000_000_000 // 1 SOL

    const tx = new Transaction().add(
        SystemProgram.transfer({ fromPubkey: fromKey, toPubkey: toKey, lamports: amountInLamports })
    )

    const { blockhash } = await connection.getLatestBlockhash()
    tx.recentBlockhash = blockhash
    tx.feePayer = fromKey

    const { signature } = await signer.signAndSendTransaction(tx)
    console.log('Successful transaction signature:', signature)
    }

​
Simulate a Transaction

Before sending a transaction, you can simulate it to preview the effects and validate that it will succeed. Transaction simulation shows all asset transfers involved in the transaction.
Transaction simulation uses the currently selected primary wallet. Make sure the user has a wallet connected before attempting to simulate a transaction.
React Native
    import { dynamicClient } from '<path to client file>'
    import { PublicKey, SystemProgram, Transaction, LAMPORTS_PER_SOL } from '@solana/web3.js'

    const simulateSolanaLegacyTransaction = async (to: string, amountSol: number) => {
      const connection = dynamicClient.solana.getConnection()

      const fromKey = new PublicKey(dynamicClient.wallets.primary.address)
      const toKey = new PublicKey(to)
      const amountInLamports = Math.round(amountSol * LAMPORTS_PER_SOL)

      const tx = new Transaction().add(
        SystemProgram.transfer({ fromPubkey: fromKey, toPubkey: toKey, lamports: amountInLamports })
      )

      const { blockhash } = await connection.getLatestBlockhash()
      tx.recentBlockhash = blockhash
      tx.feePayer = fromKey

      const simulationResult = await dynamicClient.solana.simulateSVMTransaction({
        transaction: tx,
        type: 'SignTransaction',
      })

      console.log('Simulation result:', simulationResult)
      return simulationResult
    }