Node.js WhatsApp API Integration

Why use Zaptilo with Node.js?

• Official npm package — full Promise/async-await support
• Pay-as-you-go WhatsApp Business API pricing in INR — from ₹0.04/message
• Zero monthly fees — ideal for Indian startups and growth-stage SaaS
• Works seamlessly with Express, Fastify, NestJS, BullMQ, Lambda
• India-based support, GST-compliant invoicing

Step 1: Install the package

npm install zaptilo-whatsapp

Step 2: Send your first message

const { Zaptilo } = require('zaptilo-whatsapp');

const client = new Zaptilo({
  token: process.env.ZAPTILO_API_TOKEN,
  baseUrl: 'https://web.zaptilo.ai',
});

// Send a text message
await client.sendMessage('919876543210', 'Hello from Node.js!');

// Send a template
await client.sendTemplate('919876543210', 'order_confirmation', 'en', [
  'Rahul Sharma',
  'ORD-12345',
]);

Step 3: Send from an Express endpoint

const express = require('express');
const { Zaptilo } = require('zaptilo-whatsapp');

const app = express();
app.use(express.json());

const wa = new Zaptilo({
  token: process.env.ZAPTILO_API_TOKEN,
  baseUrl: 'https://web.zaptilo.ai',
});

app.post('/webhook/order', async (req, res) => {
  const { customerPhone, customerName, orderId } = req.body;
  await wa.sendTemplate(
    `91${customerPhone}`,
    'order_confirmation',
    'en',
    [customerName, orderId]
  );
  res.json({ ok: true });
});

app.listen(3000);

Step 4: Use BullMQ for high-volume sends

For OTP delivery, marketing campaigns, or order alerts, queue WhatsApp sends so HTTP requests stay fast:

const { Queue, Worker } = require('bullmq');
const queue = new Queue('whatsapp');

// Producer
await queue.add('send', { phone, template, values });

// Worker
new Worker('whatsapp', async (job) => {
  await wa.sendTemplate(job.data.phone, job.data.template, 'en', job.data.values);
});

Use cases for Indian Node.js teams

Frequently asked questions