whatsapp-bot

WhatsApp AI Bot Example

A simple example of creating an AI-powered WhatsApp bot.

Easy Way (Recommended)

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DIY Setup

Prerequisites

• Node.js 18+
• OpenAI API key
• WhatsApp account

Installation

npm install whatsapp-web.js openai qrcode-terminal

Code

const { Client, LocalAuth } = require('whatsapp-web.js');
const OpenAI = require('openai');
const qrcode = require('qrcode-terminal');

// Initialize OpenAI
const openai = new OpenAI({
  apiKey: process.env.OPENAI_API_KEY
});

// Initialize WhatsApp client
const client = new Client({
  authStrategy: new LocalAuth(),
  puppeteer: {
    headless: true,
    args: ['--no-sandbox']
  }
});

// Show QR code for authentication
client.on('qr', (qr) => {
  qrcode.generate(qr, { small: true });
  console.log('Scan the QR code above to login');
});

client.on('ready', () => {
  console.log('WhatsApp bot is ready!');
});

// Handle incoming messages
client.on('message', async (message) => {
  // Ignore group messages and status updates
  if (message.isGroupMsg || message.isStatus) return;

  try {
    console.log(`Received: ${message.body}`);

    // Get AI response
    const completion = await openai.chat.completions.create({
      model: 'gpt-4',
      messages: [
        {
          role: 'system',
          content: 'You are a helpful AI assistant on WhatsApp. Keep responses concise.'
        },
        {
          role: 'user',
          content: message.body
        }
      ],
      max_tokens: 500
    });

    const reply = completion.choices[0].message.content;
    await message.reply(reply);
    console.log(`Replied: ${reply}`);

  } catch (error) {
    console.error('Error:', error);
    await message.reply('Sorry, I encountered an error. Please try again.');
  }
});

// Start the client
client.initialize();

Run

OPENAI_API_KEY=your-key node index.js

Limitations

This basic example:

• ❌ Cannot execute real tasks
• ❌ No memory/context
• ❌ No multi-user support
• ❌ No error recovery

Full-Featured Solution

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• ✅ Task execution (emails, calendar, etc.)
• ✅ Conversation memory
• ✅ Multi-user support
• ✅ Error handling
• ✅ 24/7 uptime

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