---
title: "Add Reaction"
method: POST
path: "/reactions"
tags: ["reactions"]
---

# Add Reaction

`POST /reactions`

## Request

- Base URL: `https://api.projectindi.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.projectindi.com/reactions`
- Auth: none declared

Add a reaction to a timeline item.

## Request body

- AddReactionRequest
  - `child_id` string, required
  - `item_type` string, required
  - `item_id` string, required
  - `reaction` string, required

## Response `200`

Successful Response

- ReactionResponse
  - `id` string, required
  - `child_id` string, required
  - `item_type` string, required
  - `item_id` string, required
  - `user_id` string, required
  - `reaction` string, required
  - `created_at` string, required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/projectindi/apis/indi-agent-api-first-principles.md) - [All operations](https://skmtc.dev/projectindi/apis/indi-agent-api-first-principles/llms.txt) - [OpenAPI document](https://skmtc.dev/projectindi/apis/indi-agent-api-first-principles/revisions/25a7813e21fd?raw)