Créer un chatbot WhatsApp avec l'IA (guide complet)

mkdir bot-whatsapp && cd bot-whatsapp
npm init -y
npm install whatsapp-web.js qrcode-terminal openai

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

const ia = new OpenAI({
  baseURL: 'https://api.deeprelay.io/v1',
  apiKey: process.env.DEEPRELAY_API_KEY,
});

const client = new Client({ authStrategy: new LocalAuth() });

client.on('qr', (qr) => qrcode.generate(qr, { small: true }));
client.on('ready', () => console.log('Bot connecté'));

client.on('message', async (msg) => {
  if (msg.fromMe || msg.isStatus) return;
  const reponse = await ia.chat.completions.create({
    model: 'deepseek-ai/DeepSeek-V3.2',
    messages: [
      { role: 'system', content: "Tu es l'assistant client de MaBoutique Dakar. Réponds en français, bref et chaleureux. Livraison 1500F à Dakar, 3000F en région." },
      { role: 'user', content: msg.body },
    ],
    max_tokens: 300,
  });
  await msg.reply(reponse.choices[0].message.content);
});

client.initialize();