How to Add Threaded Comments in Jira Cloud Using REST API

I’m working on a Jira Cloud app and need to programmatically add threaded comments (i.e., replies to existing comments) using the Jira Cloud REST API.

I’ve gone through the Jira Cloud REST API documentation, but I couldn’t find any specific reference or examples on how to add a reply to an existing comment, similar to the way users can manually add threaded replies in the Jira UI.

Here are some specific questions:

  1. Is there an endpoint or field in the API that supports adding a reply to an existing comment (threaded comment)?
  2. If not, is there a recommended workaround or timeline for when this feature might be supported?
  3. Does Forge or Connect offer any additional capabilities for handling threaded comments?

Any guidance or examples would be really helpful!

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