const { FaucetTransaction } = require('lisk-transaction-faucet');
 
app.registerTransaction(FaucetTransaction);

const { FaucetTransaction } = require('lisk-transaction-faucet');
 
const tx =  new FaucetTransaction({
    senderPublicKey: somePublicKey, // the sender doesn't matter since nobody pay anything, but it sill needs to be valid
    timestamp: txTimestamp,
    asset: {
        amount: 42,
        recipientId: recipientAddress, // Faucet receiver
    }
});
 
tx.sign(senderAccountPassphrase);