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Chat Adapter for Baileys

Chat Adapter for Baileys is a TypeScript adapter that lets Chat SDK bots run on WhatsApp through Baileys, handling connection lifecycle, message formatting, media, reactions, and WhatsApp-specific extensions.

№ 02 / 08·2026·Creator + Maintainer·Maintained Package·Open Source · Developer Tooling

Chat Adapter for Baileys is the WhatsApp adapter for the Chat SDK. It lets bot logic written against the platform-agnostic Chat SDK run on WhatsApp by connecting through Baileys, a third-party WhatsApp Web API implementation.

The adapter handles the WhatsApp connection lifecycle, authentication, message parsing, formatting, media attachments, reactions, read receipts, and typing indicators, so application code can focus on bot behavior instead of WhatsApp protocol details.

What It Supports

  • Chat SDK adapter interface: Allows bot handlers to use the same Chat SDK patterns across platforms.
  • WhatsApp connection lifecycle: Supports QR or pairing-code authentication, credential persistence, and reconnect behavior.
  • Message formatting and media: Converts Chat SDK message shapes into WhatsApp-compatible text, files, media attachments, and reply flows.
  • Reactions and read state: Supports reaction events and read receipts through the adapter surface.
  • WhatsApp-specific extensions: Exposes native WhatsApp capabilities such as quoted replies, presence, location pins, polls, and group participant lookup.
  • Multi-account workflows: Supports running multiple WhatsApp accounts with isolated thread identifiers.

Scope

This is an unofficial adapter and not an official WhatsApp or Meta API integration. It depends on Baileys, which means it can break when WhatsApp changes internal Web protocol behavior and should be evaluated carefully before production use.

My work covered the adapter implementation, v1 and v2 documentation, example projects, lifecycle handling, formatting utilities, and extension APIs. The project is built to make WhatsApp automation more approachable for developers already using the Chat SDK while keeping the risks and limitations of unofficial WhatsApp automation explicit.