Hi, I’m using the API to migrate forum posts. So far the author/member, topic and post stuff has been fine.

I can’t however see how I’d add images to posts. I do see and endpoint for gallery images, but that requires a gallery or category ID which I don’t know.

does anyone have some code snippets or ideas for how to do this? 

If you go to your control panel > gallery > categories select the v down arrow all the way on the right and select Move/Delete Content.  The page that pops will have the id= on the end of the url.  

That's all I can think of right now to get the id number.