Solana snippet to show raw signed txs

rawTx.js

const blockhash = await swapClient.program.provider.connection.getRecentBlockhash();

let txss = txs.map((r) => {
  let tx = r.tx;
  let signers = r.signers;

  if (signers === undefined) {
    signers = [];
  }

  tx.feePayer = swapClient.program.provider.wallet.publicKey;
  tx.recentBlockhash = blockhash.blockhash;

  signers
    .filter((s) => s !== undefined)
    .forEach((kp) => {
      tx.partialSign(kp);
    });

  return tx;
});

const signedTxs = await swapClient.program.provider.wallet.signAllTransactions(txss);

for (let k = 0; k < txs.length; k += 1) {
  const tx = signedTxs[k];
  const rawTx = tx.serialize();
  console.log('rawTx:', rawTx.toString('base64'));
}