Baileys

Baileys lets developers send and receive WhatsApp messages, manage groups, and listen for real-time events through a Node.js application. It connects directly over WebSockets and supports QR-code or pairing-code authentication. It is unofficial and not affiliated with WhatsApp; the maintainers discourage bulk or automated messaging, spam, and stalkerware.

Key features

• Connects directly to WhatsApp Web over WebSockets without Selenium or Chromium.
• Supports authentication using a QR code or pairing code.
• Sends and receives messages.
• Sends text, media, polls, and reactions.
• Provides real-time events for messages, connection changes, and group updates.
• Creates groups, manages participants, and configures group settings.
• Controls privacy settings and subscribes to presence updates.
• Supports custom WebSocket callbacks to extend functionality.

Why it helps in Pakistan

• Avoids running a browser for WhatsApp Web connections.
• Uses less memory than Selenium-based approaches, according to the official docs.
• Provides messaging and group functions for custom Node.js applications.
• Lets developers respond to connection and message events in real time.
• Allows modification and self-hosting under the MIT licence.

• 01

  A Karachi software team could prototype a staff-operated tool for replying to individual WhatsApp enquiries.

• 02

  A Lahore retailer could build a custom interface for staff to share product media in customer conversations.

• 03

  An Islamabad development agency could build group-management tools for a client's existing WhatsApp groups.

• 04

  A Pakistani developer could test WhatsApp connection events and QR authentication in a Node.js project.

Hardware

Check the official docs

Operating system

Check the official docs

Skills

JavaScript or TypeScript developmentNode.js package managementWorking with event listeners and authentication state

Accounts needed

A WhatsApp account to link using a QR code or pairing code

Commands are copied from the project's README and official docs.

1. 1

   Check environment compatibility

   Check the official docs. The supplied guide uses a Node.js project but does not specify supported operating systems or Node.js versions.

   Not fully covered in the README. Check the official docs before running this step.

2. 2

   Install the library

   In your Node.js project, run npm install @whiskeysockets/baileys qrcode-terminal. The qrcode-terminal package renders the pairing QR code in your terminal.
3. 3

   Create and authenticate the connection

   Follow the official homepage example: use makeWASocket with useMultiFileAuthState, save credentials on creds.update, and render the QR code from connection.update. Scan it with your WhatsApp app to link your account.
4. 4

   Test a message after connecting

   Use the homepage example to call sock.sendMessage once connection.update reports an open connection. Check the official docs for a valid recipient address and project execution instructions, which are not fully provided in the supplied page.

   Not fully covered in the README. Check the official docs before running this step.

• WhatsApp Web

  Connects through its binary WebSocket protocol to exchange messages and access group, privacy, and presence functions. This is an unofficial integration.

• qrcode-terminal

  Renders the authentication QR code in the terminal in the official setup example.

• GitHub
• Homepage
• Version migration guide
• WhiskeySockets Discord community
• Old README guide
• Report documentation issues