Build your first transaction

Let's create a simple transaction where we send 5 ADA to two recipients each:

const tx = await lucid.newTx()
  .payToAddress("addr_testa...", { lovelace: 5000000n })
  .payToAddress("addr_testb...", { lovelace: 5000000n })
  .complete();

Transactions always need to end with .complete() in order to balance the transaction and do coin selection.

Next we sign the transaction:

const signedTx = await tx.sign().complete();

Here we also need to call .complete() when we are ready with signing.

Lastly we submit the transaction:

const txHash = await signedTx.submit();

console.log(txHash);

The full example:

import { Blockfrost, Lucid } from "https://deno.land/x/lucid/mod.ts";

const lucid = await Lucid.new(
  new Blockfrost("https://cardano-preprod.blockfrost.io/api/v0", "<projectId>"),
  "Preprod",
);

lucid.selectWalletFromPrivateKey(privateKey);

const tx = await lucid.newTx()
  .payToAddress("addr_testa...", { lovelace: 5000000n })
  .payToAddress("addr_testb...", { lovelace: 5000000n })
  .complete();

const signedTx = await tx.sign().complete();
const txHash = await signedTx.submit();

console.log(txHash);