# React to a post

`needleReactToLinkedinPost`

React to a LinkedIn post, or to a comment when commentId is given. Defaults to like.

**Input**

- `postId` (string, required): Post id as returned by a post listing or search. An id copied from a post URL often does not resolve.
- `connectedAccountId` (string · uuid, required): Connected account to act as
- `reaction` ("like" | "celebrate" | "support" | "love" | "insightful" | "funny", optional): Defaults to like.
- `commentId` (string, optional): React to this comment instead of the post.