API経由で特定の投稿を「いいね！」するにはどうすればよいですか？

開発
1

Is there anything in the Discourse API that can help you like a post?

2

Yes, see How to reverse engineer the Discourse API and Discourse API Docs

「いいね！」 3
4

what is the “post_action_type_id”?

5

For like it is 2 as you can check via How to reverse engineer the Discourse API

「いいね！」 2