lemmy/docs/api.md

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# Lemmy WebSocket API
*Note: this may lag behind the actual API endpoints [here](../server/src/api).*
## Data types
- `i16`, `i32` and `i64` are respectively [16-bit](https://en.wikipedia.org/wiki/16-bit), [32-bit](https://en.wikipedia.org/wiki/32-bit) and [64-bit](https://en.wikipedia.org/wiki/64-bit_computing) integers.
- <code>Option<***SomeType***></code> designates an option which may be omitted in requests and not be present in responses. It will be of type ***SomeType***.
- <code>Vec<***SomeType***></code> is a list which contains objects of type ***SomeType***.
- `chrono::NaiveDateTime` is a timestamp string in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) format. Timestamps will be UTC.
- Other data types are listed [here](../server/src/db).
## Basic usage
Request and response strings are in [JSON format](https://www.json.org).
### Endpoint
Connect to <code>ws://***host***/api/v1/ws</code> to get started.
If the ***`host`*** supports secure connections, you can use <code>wss://***host***/api/v1/ws</code>.
### Testing with [Websocat](https://github.com/vi/websocat)
`websocat ws://127.0.0.1:8536/api/v1/ws -nt`
A simple test command:
`{"op": "ListCategories"}`
### Testing with the [WebSocket JavaScript API](https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API)
```javascript
var ws = new WebSocket("ws://" + host + "/api/v1/ws");
ws.onopen = function () {
console.log("Connection succeed!");
ws.send(JSON.stringify({
op: "ListCategories"
}));
};
```
## Rate limits
- 1 per hour for signups and community creation.
- 1 per 10 minutes for post creation.
- 30 actions per minute for post voting and comment creation.
- Everything else is not rate-limited.
## Errors
```rust
{
op: String,
message: String,
}
```
## API documentation
### Sort Types
These go wherever there is a `sort` field. The available sort types are:
- `Hot` - the hottest posts/communities, depending on votes, views, comments and publish date
- `New` - the newest posts/communities
- `TopDay` - the most upvoted posts/communities of the current day.
- `TopWeek` - the most upvoted posts/communities of the current week.
- `TopMonth` - the most upvoted posts/communities of the current month.
- `TopYear` - the most upvoted posts/communities of the current year.
- `TopAll` - the most upvoted posts/communities on the current instance.
### User / Authentication / Admin actions
#### Login
The `jwt` string should be stored and used anywhere `auth` is called for.
##### Request
```rust
{
op: "Login",
data: {
username_or_email: String,
password: String
}
}
```
##### Response
```rust
{
op: String,
jwt: String
}
```
#### Register
Only the first user will be able to be the admin.
##### Request
```rust
{
op: "Register",
data: {
username: String,
email: Option<String>,
password: String,
password_verify: String,
admin: bool
}
}
```
##### Response
```rust
{
op: String,
jwt: String
}
```
#### Get User Details
##### Request
```rust
{
op: "GetUserDetails",
data: {
user_id: Option<i32>,
username: Option<String>,
sort: String,
page: Option<i64>,
limit: Option<i64>,
community_id: Option<i32>,
saved_only: bool,
auth: Option<String>,
}
}
```
##### Response
```rust
{
op: String,
user: UserView,
follows: Vec<CommunityFollowerView>,
moderates: Vec<CommunityModeratorView>,
comments: Vec<CommentView>,
posts: Vec<PostView>,
}
```
#### Save User Settings
##### Request
```rust
{
show_nsfw: bool,
auth: String,
}
```
##### Response
```rust
{
op: String,
jwt: String
}
```
#### Get Replies / Inbox
##### Request
```rust
{
op: "GetReplies",
data: {
sort: String,
page: Option<i64>,
limit: Option<i64>,
unread_only: bool,
auth: String
}
}
```
##### Response
```rust
{
op: String,
replies: Vec<ReplyView>,
}
```
#### Mark all replies as read
##### Request
```rust
{
op: "MarkAllAsRead",
data: {
auth: String
}
}
```
##### Response
```rust
{
op: String,
replies: Vec<ReplyView>,
}
```
#### Add admin
##### Request
```rust
{
op: "AddAdmin",
data: {
user_id: i32,
added: bool,
auth: String
}
}
```
##### Response
```rust
{
op: String,
admins: Vec<UserView>,
}
```
#### Ban user
##### Request
```rust
{
op: "BanUser",
data: {
user_id: i32,
ban: bool,
reason: Option<String>,
expires: Option<i64>,
auth: String
}
}
```
##### Response
```rust
{
op: String,
user: UserView,
banned: bool,
}
```
### Site
#### List Categories
##### Request
```rust
{
op: "ListCategories"
}
```
##### Response
```rust
{
op: String,
categories: Vec<Category>
}
```
#### Search
Search types are `Both, Comments, Posts`.
##### Request
```rust
{
op: "Search",
data: {
q: String,
type_: String,
community_id: Option<i32>,
sort: String,
page: Option<i64>,
limit: Option<i64>,
}
}
```
##### Response
```rust
{
op: String,
comments: Vec<CommentView>,
posts: Vec<PostView>,
}
```
#### Get Modlog
##### Request
```rust
{
op: "GetModlog",
data: {
mod_user_id: Option<i32>,
community_id: Option<i32>,
page: Option<i64>,
limit: Option<i64>,
}
}
```
##### Response
```rust
{
op: String,
removed_posts: Vec<ModRemovePostView>,
locked_posts: Vec<ModLockPostView>,
removed_comments: Vec<ModRemoveCommentView>,
removed_communities: Vec<ModRemoveCommunityView>,
banned_from_community: Vec<ModBanFromCommunityView>,
banned: Vec<ModBanView>,
added_to_community: Vec<ModAddCommunityView>,
added: Vec<ModAddView>,
}
```
#### Create Site
##### Request
```rust
{
op: "CreateSite",
data: {
name: String,
description: Option<String>,
auth: String
}
}
```
##### Response
```rust
{
op: String,
site: SiteView,
}
```
#### Edit Site
##### Request
```rust
{
op: "EditSite",
data: {
name: String,
description: Option<String>,
auth: String
}
}
```
##### Response
```rust
{
op: String,
site: SiteView,
}
```
#### Get Site
##### Request
```rust
{
op: "GetSite"
}
```
##### Response
```rust
{
op: String,
site: Option<SiteView>,
admins: Vec<UserView>,
banned: Vec<UserView>,
}
```
#### Transfer Site
##### Request
```rust
{
op: "TransferSite",
data: {
user_id: i32,
auth: String
}
}
```
##### Response
```rust
{
op: String,
site: Option<SiteView>,
admins: Vec<UserView>,
banned: Vec<UserView>,
}
```
### Community
#### Get Community
##### Request
```rust
{
op: "GetCommunity",
data: {
id: Option<i32>,
name: Option<String>,
auth: Option<String>
}
}
```
##### Response
```rust
{
op: String,
community: CommunityView,
moderators: Vec<CommunityModeratorView>,
admins: Vec<UserView>,
}
```
#### Create Community
##### Request
```rust
{
op: "CreateCommunity",
data: {
name: String,
title: String,
description: Option<String>,
category_id: i32 ,
auth: String
}
}
```
##### Response
```rust
{
op: String,
community: CommunityView
}
```
#### List Communities
##### Request
```rust
{
op: "ListCommunities",
data: {
sort: String,
page: Option<i64>,
limit: Option<i64>,
auth: Option<String>
}
}
```
##### Response
```rust
{
op: String,
communities: Vec<CommunityView>
}
```
#### Ban from Community
##### Request
```rust
{
op: "BanFromCommunity",
data: {
community_id: i32,
user_id: i32,
ban: bool,
reason: Option<String>,
expires: Option<i64>,
auth: String
}
}
```
##### Response
```rust
{
op: String,
user: UserView,
banned: bool,
}
```
#### Add Mod to Community
##### Request
```rust
{
op: "AddModToCommunity",
data: {
community_id: i32,
user_id: i32,
added: bool,
auth: String
}
}
```
##### Response
```rust
{
op: String,
moderators: Vec<CommunityModeratorView>,
}
```
#### Edit Community
Mods and admins can remove and lock a community, creators can delete it.
##### Request
```rust
{
op: "EditCommunity",
data: {
edit_id: i32,
name: String,
title: String,
description: Option<String>,
category_id: i32,
removed: Option<bool>,
deleted: Option<bool>,
reason: Option<String>,
expires: Option<i64>,
auth: String
}
}
```
##### Response
```rust
{
op: String,
community: CommunityView
}
```
#### Follow Community
##### Request
```rust
{
op: "FollowCommunity",
data: {
community_id: i32,
follow: bool,
auth: String
}
}
```
##### Response
```rust
{
op: String,
community: CommunityView
}
```
#### Get Followed Communities
##### Request
```rust
{
op: "GetFollowedCommunities",
data: {
auth: String
}
}
```
##### Response
```rust
{
op: String,
communities: Vec<CommunityFollowerView>
}
```
#### Transfer Community
##### Request
```rust
{
op: "TransferCommunity",
data: {
community_id: i32,
user_id: i32,
auth: String
}
}
```
##### Response
```rust
{
op: String,
community: CommunityView,
moderators: Vec<CommunityModeratorView>,
admins: Vec<UserView>,
}
```
### Post
#### Create Post
##### Request
```rust
{
op: "CreatePost",
data: {
name: String,
url: Option<String>,
body: Option<String>,
community_id: i32,
auth: String
}
}
```
##### Response
```rust
{
op: String,
post: PostView
}
```
#### Get Post
##### Request
```rust
{
op: "GetPost",
data: {
id: i32,
auth: Option<String>
}
}
```
##### Response
```rust
{
op: String,
post: PostView,
comments: Vec<CommentView>,
community: CommunityView,
moderators: Vec<CommunityModeratorView>,
admins: Vec<UserView>,
}
```
#### Get Posts
Post listing types are `All, Subscribed, Community`
##### Request
```rust
{
op: "GetPosts",
data: {
type_: String,
sort: String,
page: Option<i64>,
limit: Option<i64>,
community_id: Option<i32>,
auth: Option<String>
}
}
```
##### Response
```rust
{
op: String,
posts: Vec<PostView>,
}
```
#### Create Post Like
`score` can be 0, -1, or 1
##### Request
```rust
{
op: "CreatePostLike",
data: {
post_id: i32,
score: i16,
auth: String
}
}
```
##### Response
```rust
{
op: String,
post: PostView
}
```
#### Edit Post
Mods and admins can remove and lock a post, creators can delete it.
##### Request
```rust
{
op: "EditPost",
data: {
edit_id: i32,
creator_id: i32,
community_id: i32,
name: String,
url: Option<String>,
body: Option<String>,
removed: Option<bool>,
deleted: Option<bool>,
locked: Option<bool>,
reason: Option<String>,
auth: String
}
}
```
##### Response
```rust
{
op: String,
post: PostView
}
```
#### Save Post
##### Request
```rust
{
op: "SavePost",
data: {
post_id: i32,
save: bool,
auth: String
}
}
```
##### Response
```rust
{
op: String,
post: PostView
}
```
### Comment
#### Create Comment
##### Request
```rust
{
op: "CreateComment",
data: {
content: String,
parent_id: Option<i32>,
edit_id: Option<i32>,
post_id: i32,
auth: String
}
}
```
##### Response
```rust
{
op: String,
comment: CommentView
}
```
#### Edit Comment
Mods and admins can remove a comment, creators can delete it.
##### Request
```rust
{
op: "EditComment",
data: {
content: String,
parent_id: Option<i32>,
edit_id: i32,
creator_id: i32,
post_id: i32,
removed: Option<bool>,
deleted: Option<bool>,
reason: Option<String>,
read: Option<bool>,
auth: String
}
}
```
##### Response
```rust
{
op: String,
comment: CommentView
}
```
#### Save Comment
##### Request
```rust
{
op: "SaveComment",
data: {
comment_id: i32,
save: bool,
auth: String
}
}
```
##### Response
```rust
{
op: String,
comment: CommentView
}
```
#### Create Comment Like
`score` can be 0, -1, or 1
##### Request
```rust
{
op: "CreateCommentLike",
data: {
comment_id: i32,
post_id: i32,
score: i16,
auth: String
}
}
```
##### Response
```rust
{
op: String,
comment: CommentView
}
```