Build your first transaction

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

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

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

Next we sign the transaction:

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

Here we also need to call .commit() 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 = new Lucid({
  provider: new Blockfrost(
    "https://cardano-preprod.blockfrost.io/api/v0",
    "<projectId>",
  ),
});

lucid.selectWalletFromPrivateKey(privateKey);

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

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

console.log(txHash);