Send reaction to a message

Sends a reaction (emoji) to a specific message. This endpoint allows:

1. Adding or removing reactions on messages

2. Using any valid Unicode emoji

3. Reacting to messages in individual chats or groups

4. Removing existing reactions

5. Checking the status of the sent reaction

Supported reaction types:

• Any valid Unicode emoji (👍, ❤️, 😂, etc)

• Empty string to remove reaction

Basic request example:

{
  "number": "5511999999999@s.whatsapp.net",
  "text": "👍",
  "id": "3EB0538DA65A59F6D8A251"
}

Request example to remove reaction:

{
  "number": "5511999999999@s.whatsapp.net",
  "text": "",
  "id": "3EB0538DA65A59F6D8A251"
}

Response example:

{
  "success": true,
  "message": "Reaction sent",
  "reaction": {
    "id": "3EB0538DA65A59F6D8A251",
    "emoji": "👍",
    "timestamp": 1672531200000,
    "status": "sent"
  }
}

Response example when removing reaction:

{
  "success": true,
  "message": "Reaction removed",
  "reaction": {
    "id": "3EB0538DA65A59F6D8A251",
    "emoji": null,
    "timestamp": 1672531200000,
    "status": "removed"
  }
}

Available parameters:

• number: Chat number in international format (e.g.: 5511999999999@s.whatsapp.net)

• text: Reaction Unicode emoji (or empty string to remove reaction)

• id: ID of the message that will receive the reaction

Common errors:

• 401: Invalid or expired token

• 400: Invalid number or unsupported emoji

• 404: Message not found

• 500: Error sending reaction

Limitations:

• You can only react to messages sent by other users

• Cannot react to old messages (older than 7 days)

• The same user can only have one active reaction per message