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lemmy/docs/apub_api_outline.md

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# Activitypub API outline
- Start with the [reddit API](https://www.reddit.com/dev/api), and find [Activitypub vocab](https://www.w3.org/TR/activitystreams-vocabulary/) to match it.
<!-- toc -->
- [Actors](#actors)
* [User / Person](#user--person)
* [Community / Group](#community--group)
- [Objects](#objects)
* [Post / Page](#post--page)
* [Post Listings / Ordered CollectionPage](#post-listings--ordered-collectionpage)
* [Comment / Note](#comment--note)
* [Comment Listings / Ordered CollectionPage](#comment-listings--ordered-collectionpage)
* [Deleted thing / Tombstone](#deleted-thing--tombstone)
- [Actions](#actions)
* [Comments](#comments)
+ [Create](#create)
+ [Delete](#delete)
+ [Update](#update)
+ [Read](#read)
+ [Like](#like)
+ [Dislike](#dislike)
* [Posts](#posts)
+ [Create](#create-1)
+ [Delete](#delete-1)
+ [Update](#update-1)
+ [Read](#read-1)
* [Communities](#communities)
+ [Create](#create-2)
+ [Delete](#delete-2)
+ [Update](#update-2)
+ [Join](#join)
+ [Leave](#leave)
* [Moderator](#moderator)
+ [Ban user from community / Block](#ban-user-from-community--block)
+ [Delete Comment](#delete-comment)
+ [Invite a moderator](#invite-a-moderator)
+ [Accept Invitation](#accept-invitation)
+ [Reject Invitation](#reject-invitation)
<!-- tocstop -->
## Actors
### [User / Person](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Person",
"id": "https://instance_url/api/v1/user/sally_smith",
"inbox": "https://instance_url/api/v1/user/sally_smith/inbox",
"outbox": "https://instance_url/api/v1/user/sally_smith/outbox",
"liked": "https://instance_url/api/v1/user/sally_smith/liked",
// TODO disliked?
"following": "https://instance_url/api/v1/user/sally_smith/following",
"name": "sally_smith",
"preferredUsername": "Sally",
"icon"?: {
"type": "Image",
"name": "User icon",
"url": "https://instance_url/api/v1/user/sally_smith/icon.png",
"width": 32,
"height": 32
},
"published": "2014-12-31T23:00:00-08:00",
"summary"?: "This is sally's profile."
}
```
### [Community / Group](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-group)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Group",
"id": "https://instance_url/api/v1/community/today_i_learned",
"name": "today_i_learned"
"attributedTo": [ // The moderators
"http://joe.example.org",
],
"followers": "https://instance_url/api/v1/community/today_i_learned/followers",
"published": "2014-12-31T23:00:00-08:00",
"summary"?: "The group's tagline",
"attachment: [{}] // TBD, these would be where strong types for custom styles, and images would work.
}
```
## Objects
### [Post / Page](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-page)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Page",
"id": "https://instance_url/api/v1/post/1",
"name": "The title of a post, maybe a link to imgur",
"url": "https://news.blah.com"
"attributedTo": "http://joe.example.org", // The poster
"published": "2014-12-31T23:00:00-08:00",
}
```
### [Post Listings / Ordered CollectionPage](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-orderedcollectionpage)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "OrderedCollectionPage",
"id": "https://instance_url/api/v1/posts?type={all, best, front}&sort={}&page=1,
"partOf": "http://example.org/foo",
"orderedItems": [Posts]
}
```
### [Comment / Note](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-note)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Note",
"id": "https://instance_url/api/v1/comment/1",
"mediaType": "text/markdown",
"content": "Looks like it is going to rain today. Bring an umbrella *if necessary*!"
"attributedTo": john_id,
"inReplyTo": "comment or post id",
"published": "2014-12-31T23:00:00-08:00",
"updated"?: "2014-12-12T12:12:12Z"
"replies" // TODO, not sure if these objects should embed all replies in them or not.
"to": [sally_id, group_id]
}
```
### [Comment Listings / Ordered CollectionPage](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-orderedcollectionpage)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "OrderedCollectionPage",
"id": "https://instance_url/api/v1/comments?type={all,user,community,post,parent_comment}&id=1&page=1,
"partOf": "http://example.org/foo",
"orderedItems": [Comments]
}
```
### [Deleted thing / Tombstone](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-tombstone)
```
{
"type": "Tombstone",
"formerType": "Note / Post",
"id": note / post_id,
"deleted": "2016-03-17T00:00:00Z"
}
```
## Actions
- These are all posts to a user's outbox.
- The server then creates a post to the necessary inbox of the recipient, or the followers.
- Whenever a user accesses the site, they do a get from their inbox.
### Comments
#### [Create](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-create)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Create",
"actor": id,
"object": comment_id, or post_id
}
```
#### [Delete](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-delete)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Delete",
"actor": id,
"object": comment_id, or post_id
}
```
#### [Update](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-update)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Create",
"actor": id,
"object": comment_id, or post_id
"content": "New comment",
"updated": "New Date"
}
```
#### [Read](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-read)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Read",
"actor": user_id
"object": comment_id
}
```
#### [Like](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-like)
- TODO: Should likes be notifications? IE, have a to?
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Like",
"actor": user_id
"object": comment_id
// TODO different types of reactions, or no?
}
```
#### [Dislike](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-dislike)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Dislike",
"actor": user_id
"object": comment_id
// TODO different types of reactions, or no?
}
```
### Posts
#### [Create](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-create)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Create",
"actor": id,
"to": community_id/followers
"object": post_id
}
```
#### [Delete](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-delete)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Delete",
"actor": id,
"object": comment_id, or post_id
}
```
#### [Update](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-update)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Create",
"actor": id,
"object": comment_id, or post_id
TODO fields.
}
```
#### [Read](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-read)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Read",
"actor": user_id
"object": post_id
}
```
### Communities
#### [Create](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-create)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Create",
"actor": id,
"object": community_id
}
```
#### [Delete](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-delete)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Delete",
"actor": id,
"object": community_id
}
```
#### [Update](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-update)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Create",
"actor": id,
"object": community_id
TODO fields.
}
```
#### [Follow / Subscribe](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-follow)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Follow",
"actor": id
"object": community_id
}
```
#### [Ignore/ Unsubscribe](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-ignore)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Follow",
"actor": id
"object": community_id
}
```
#### [Join / Become a Mod](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-join)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Join",
"actor": user_id,
"object": community_id
}
```
#### [Leave](https://www.w3.org/TR/activitystreams-vocabulary#dfn-leave)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Leave",
"actor": user_id,
"object": community_id
}
```
### Moderator
#### [Ban user from community / Block](https://www.w3.org/TR/activitystreams-vocabulary#dfn-block)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Remove",
"actor": mod_id,
"object": user_id,
"origin": group_id
}
```
#### [Delete Comment](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-delete)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Delete",
"actor": id,
"object": community_id
}
```
#### [Invite a moderator](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-invite)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Invite",
"id": "https://instance_url/api/v1/invite/1",
"actor": sally_id,
"object": group_id,
"target": john_id
}
```
#### [Accept Invitation](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-accept)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Accept",
"actor": john_id,
"object": invite_id
}
```
#### [Reject Invitation](https://www.w3.org/TR/activitystreams-vocabulary/#dfn-reject)
```
{
"@context": "https://www.w3.org/ns/activitystreams",
"type": "Reject",
"actor": john_id,
"object": invite_id
}
```
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