priv-key-wallet.ts

export async function sendTransaction(
  connection: Connection,
  wallet: any,
  transaction: Transaction,
  signers: Array<Account> = []
) {
  transaction.recentBlockhash = (await connection.getRecentBlockhash(commitment)).blockhash
  transaction.setSigners(wallet.publicKey, ...signers.map((s) => s.publicKey))
  if (signers.length > 0) {
    transaction.partialSign(...signers)
  }
  const signedTransaction = await wallet.signTransaction(transaction)
  const rawTransaction = signedTransaction.serialize()

  const txid: TransactionSignature = await connection.sendRawTransaction(rawTransaction, {
    skipPreflight: true,
    preflightCommitment: commitment
  })

  return txid
}

program-wallet.ts

export async function sendTransactionWithProgramWallet(
  connection: Connection,
  wallet: any,
  transaction: Transaction,
  signers: Array<Account> = []
) {
  transaction.recentBlockhash = (await connection.getRecentBlockhash(commitment)).blockhash
  transaction.setSigners(wallet.publicKey, ...signers.map((s) => s.publicKey))
  programWalletTransaction = await wallet.convertToProgramWalletTransation(transaction)
  if (signers.length > 0) {
    programWalletTransaction.partialSign(...signers)
  }
  const txid = await wallet.signAndSendTransaction(programWalletTransaction, {
    skipPreflight: true,
    preflightCommitment: commitment
  })

  return txid
}