WhatsApp Web API (WWebJS) icon

WhatsApp Web API (WWebJS)

Interact with WhatsApp Web API via WWebJS — send messages, manage sessions, chats, groups, contacts and channels

Message → React

AI-generated

Summary

React to a WhatsApp message with an emoji.

Inputs

  • sessionId (required) — Session identifier. Select from the list or use an expression. Falls back to credentials default if empty.
  • chatId (required) — The chat ID that contains the message
  • messageId (required) — Unique WhatsApp identifier for the message
  • reaction (required) — Emoji to react with. Send empty string to remove the reaction.

Output shape

object containing success flag and updated message details

Returns a payload with 'success' and the updated message object; fields may be optional.

Examples

Example 1: Add a thumbs‑up reaction to a specific message

sessionId selected, chatId set to 34612345678@c.us, messageId set to true_34612345678@c.us_ABCDEF999, reaction set to 👍

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