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activitypub-federation-rust/docs/04_federating_posts.md
Felix Ableitner 32394696a5 move files
2023-03-06 16:19:43 +01:00

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Federating posts

We repeat the same steps taken above for users in order to federate our posts.

$ curl -H 'Accept: application/activity+json' https://mastodon.social/@LemmyDev/109790106847504642 | jq
{
    "id": "https://mastodon.social/users/LemmyDev/statuses/109790106847504642",
    "type": "Note",
    "content": "<p><a href=\"https://mastodon.social/tags/lemmy\" ...",
    "attributedTo": "https://mastodon.social/users/LemmyDev",
    "to": [
        "https://www.w3.org/ns/activitystreams#Public"
    ],
    "cc": [
        "https://mastodon.social/users/LemmyDev/followers"
    ],
}

The most important fields are:

  • id: Unique identifier for this object. At the same time it is the URL where we can fetch the object from
  • type: The type of this object
  • content: Post text in HTML format
  • attributedTo: ID of the user who created this post
  • to, cc: Who the object is for. The special "public" URL indicates that everyone can view it. It also gets delivered to followers of the LemmyDev account.

Just like for Person before, we need to implement a protocol type and a database type, then implement trait ApubObject. See the example for details.