whatsmeow is a Go library for the WhatsApp web multidevice API.

Matrix room: #whatsmeow:maunium.net

For questions about the WhatsApp protocol (like how to send a specific type of message), you can also use the WhatsApp protocol Q&A section on GitHub discussions.

The godoc includes docs for all methods and event types. There's also a simple example at the top.

Also see mdtest for a CLI tool you can easily try out whatsmeow with.

Most core features are already present:

• Sending messages to private chats and groups (both text and media)
• Receiving all messages
• Managing groups and receiving group change events
• Joining via invite messages, using and creating invite links
• Sending and receiving typing notifications
• Sending and receiving delivery and read receipts
• Reading app state (contact list, chat pin/mute status, etc)
• Sending and handling retry receipts if message decryption fails
• Sending status messages (experimental, may not work for large contact lists)

Things that are not yet implemented:

• Writing app state (contact list, chat pin/mute status, etc)
• Sending broadcast list messages (this is not supported on WhatsApp web either)
• Calls