make-invoice.ts

import "websocket-polyfill"; // required in node.js

import * as readline from "node:readline/promises";
import { stdin as input, stdout as output } from "node:process";

import { NWCClient } from "@getalby/sdk/nwc";

const rl = readline.createInterface({ input, output });

const nwcUrl =
  process.env.NWC_URL ||
  (await rl.question("Nostr Wallet Connect URL (nostr+walletconnect://...): "));

const amount =
  parseInt((await rl.question("Amount in sats (default 1 sat): ")) || "1") *
  1000;

rl.close();

const client = new NWCClient({
  nostrWalletConnectUrl: nwcUrl,
});

const response = await client.makeInvoice({
  amount, // in millisats
  description: "NWC Client example",
  // or set a 256-bit description hash:
  //description_hash: "a40f2b27a4414044995b26b73eb5aa66688b5f18d6a8a2513827d9a116ad95f1",
});

console.info(response);

client.close();