Have you tried /t/<topic_id>/posts.json? That will get 20 posts and you can take the post_number-th one, which will contain a post id.
But to get more that 20 you’ll need pagination, which I don’t see how to do at the moment.
Have you tried /t/<topic_id>/posts.json? That will get 20 posts and you can take the post_number-th one, which will contain a post id.
But to get more that 20 you’ll need pagination, which I don’t see how to do at the moment.