Fediverse

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A community to talk about the Fediverse and all it's related services using ActivityPub (Mastodon, Lemmy, KBin, etc).

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Can you explain how federation works on protocol level? (programming.dev)

submitted 1 month ago by [email protected] to c/[email protected]

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Let's say we have lemmy instances A, B, C.

alice from A makes a post "Hello, world" to B. What happens? How is it processed on servers A, B, C and how do users from A, B, C receive her post?

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[–] [email protected] 10 points 1 month ago

I assume that if someone from a new instance (D) subscribes to foo, then D will need to request all the old posts from foo, since they weren’t pushed to D?

Lemmy is pretty bad about backfilling content. Communities do have outboxs, but these only list the last 50 posts and you can't get the vote or comments on any of them. See GitHub issues #5283, #3448 and #2004.