🚀 WhatsApp Bot – Connection Manager

Selamat datang kembali!
Pada Chapter 1, kita membahas blueprint sistem-bot. Sekarang mari fokus ke inti utamanya: bagaimana bot login & tetap terhubung ke WhatsApp.

🔑 Kenapa Ini Penting?

Bot harus bisa:

1. Login ke WhatsApp (QR atau pairing code)
2. Tetap Online meski internet tidak stabil
3. Reconnect Otomatis kalau terputus
4. Dengar Event WhatsApp (pesan baru, join/leave group, dll)

Tanpa ini, bot hanyalah kode yang tidak bisa ngobrol dengan siapa pun.

🧩 Konsep Utama

• Session → status login yang disimpan (biar nggak scan QR tiap restart).
• Connection Status → online, connecting, atau offline.
• Auto Reconnect → kalau koneksi putus, bot coba nyambung lagi.
• Events Listener → tangkap event seperti messages.upsert, connection.update, dll.

⚡ Cara Menyalakan Bot

Minimal setup (start_bot.js):

const sistemBot = require('@kelvdra/rapthalia-js');

const botManager = new sistemBot.Baileys({
  name: "my-sistem-bot",
  pairing_code: true,
});

botManager.login()
  .then(() => console.log("✅ Bot login initiated!"))
  .catch((err) => console.error("❌ Failed to login:", err));

📌 Output saat dijalankan:

⏳ Connecting...
ex: 628xxx...
Enter your number: 6281234567890
✅ Your pairing code: 1234-5678-9012-3456
✅ Bot connected.

🔍 Apa yang Terjadi di Balik Layar?

Flow sederhana koneksi bot:

sequenceDiagram
    participant App
    participant ConnManager
    participant Session
    participant WA

    App->>ConnManager: login()
    ConnManager->>Session: Load creds
    alt First time
        ConnManager->>WA: Request pairing code
        WA-->>ConnManager: Return code
        ConnManager->>App: Show code
    else Already saved
        ConnManager->>WA: Connect with creds
    end
    WA-->>ConnManager: Connected!
    ConnManager->>App: Bot is online

🛠 Core Class: BaileysBot

File utama: system/baileys.js

class BaileysBot extends EventEmitter {
  constructor(config) {
    super();
    this.config = config;
    this.sessionsName = config.sessions_name || "sessions";
    this.pairing = config.pairing_code || false;
  }

  async login() {
    await this.init();
  }
}

Fitur utama:

• useMultiFileAuthState → simpan session otomatis
• connection.update → deteksi online/offline & auto reconnect
• messages.upsert → terima pesan baru lalu emit msg.notify

✅ Kesimpulan

• Bot punya lifeline lewat BaileysBot
• Session disimpan, koneksi stabil, event ditangani otomatis
• Dengan login(), bot siap online & interaktif

👉 Next: Extended WhatsApp Client

🤝 Stay Connected

• 📡 Channel: Join Kelvdra System
• 📞 Contact: WhatsApp Admin

🧑‍💻 Author & License

Kelvdra
📜 License: MIT