A post with id 1 in lemmy.world has a different id in lemmy.ml (or any instance). How do I get the post id in lemmy.ml?

  • Rikudou_Sage@lemmings.world
    12·
    2 years ago

    Every post has an “activity pub id” (ap_id in the api) which is a URL to the post on its home instance. Every Lemmy instance can get a link to a post by its activity pub id.

    The flow is:

    • parse the URL and get the numerical ID
    • call an api endpoint with post details (on the instance the link points to), which includes its activity pub id
    • call an api endpoint on your target instance to resolve the activity pub id to a local post (which includes its local ID)
    • construct a new URL in the form of https://[targetInstance]/post/[localID]