Best way to migrate a community post history?

I have two lemm.ee communities and I very much want to keep the post history in one community for discover ability and archival purposes.

What tools and methods are available to transfer posts from one instance to another?

12 comments

https://piefed.social/post/667044
Basically, find the piefed.social copy of your community and then look for the 'move to piefed.social' link in the sidebar.
- Time to shine for this feature
  
  Yeah, with 1700 communities on lemm.ee this will be a life saver... if we can automate the backfill.
- Thanks for this!
  I've been meaning to try Piefed, but never got to it.
- I've been informed this community 'move to piefed' feature only works for communities that are already subscribed from a piefed user, and I don't believe the lemmy-federate bot works here.
  So some elbow grease may still be required.
  
  only works for communities that are already subscribed from a piefed user, and I don't believe the lemmy-federate bot works here
  @rimu@piefed.social @iso@lemy.lol
  What would it take to create a "piefederate" bot?

You can write a script for this:

    
# loop through all post
GET https://lemm.ee/api/v3/post/list?limit=50&sort=New&community_name=fedigrow&page=*page*
# take `post.ap_id` for each item
# then fetch it over activitypub on the other instance
GET https://lemmy.ml/api/v3/resolve_object?q=*urlencode post.ap_id*
# same thing for comments
GET https://lemm.ee/api/v3/comment/list?limit=50&sort=New&community_name=fedigrow&page=*page*
# again fetch
GET https://lemmy.ml/api/v3/resolve_object?q=*urlencode comment.ap_id*

~~Yeah but this would only make it available on that remote instance. OP wants to transfer the community to another instance along with its posts/comments.~~
edit: misunderstood. Ignore.

12 comments