---
title: "React to a message"
method: POST
path: "/v1/messages/{id}/reactions"
tags: ["Messages"]
---

# React to a message

`POST /v1/messages/{id}/reactions`

## Request

- Base URL: `https://www.chatrail.dev`
- URL: `https://www.chatrail.dev/v1/messages/{id}/reactions`
- Auth: HTTP bearer

Sets this number's reaction on a message it sent or received; an empty `emoji` removes it. Works on any message that has reached WhatsApp.

## Path parameters

- `id` string, required

## Request body

- object
  - `emoji` string, required

## Response `200`

The message, with `reaction` set.

## Other responses

- `404`: No such message.
- `409`: Not possible for this message, or WhatsApp refused.
- `422`: The connection's engine does not support reactions.

---

[API](https://skmtc.dev/chatrail/apis/chatrail-api.md) · [All operations](https://skmtc.dev/chatrail/apis/chatrail-api/llms.txt) · [OpenAPI document](https://skmtc.dev/chatrail/apis/chatrail-api/revisions/acc5b88c6f59?raw)