# Subscribe to post notifications

Subscribes the authenticated user to receive notifications for new activity on a post (new comments, edits, etc.). Users cannot subscribe to their own posts as they already receive notifications by default. For remote posts, sends a Follow(post) ActivityPub activity.

Endpoint: PUT /api/v1/posts/{postId}/subscription
Version: 1.0
Security: header

## Path parameters:

  - `postId` (string, required)
    UUID with type prefix
    Example: "us_01hxcvk1hjexere4pvtrj0ymqq"

## Response 401 fields (application/json):

  - `errorCode` (string, required)
    Error code

  - `message` (string, required)
    Error message

  - `docUrl` (string)
    Link to documentation

## Response 403 fields (application/json):

  - `errorCode` (string, required)
    Error code

  - `message` (string, required)
    Error message

  - `docUrl` (string)
    Link to documentation

## Response 404 fields (application/json):

  - `errorCode` (string, required)
    Error code

  - `message` (string, required)
    Error message

  - `docUrl` (string)
    Link to documentation

## Response 409 fields (application/json):

  - `errorCode` (string, required)
    Error code

  - `message` (string, required)
    Error message

  - `docUrl` (string)
    Link to documentation