Use ALT

Use Address Lookup Tables in a Instruction / Transaction

New Way

Note - remember to install @solana-program/address-lookup-table

Old Way

const messageV0 = new web3.TransactionMessage({
  payerKey: payer.publicKey,
  recentBlockhash: blockhash,
  instructions: arrayOfInstructions, // note this is an array of instructions
}).compileToV0Message([lookupTableAccount]);
 
const transactionV0 = new web3.VersionedTransaction(messageV0);
 
transactionV0.sign([payer]);
 
const txid = await web3.sendAndConfirmTransaction(connection, transactionV0);
 
console.log(txid);