1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
use axum::{
extract::{Json, Path, State},
http::StatusCode,
response::{IntoResponse, Response},
routing::{get, post},
Router,
};
use super::app::{self, EventsError};
use crate::{
app::App,
clock::RequestedAt,
error::InternalError,
repo::{
channel::{self, Channel},
login::Login,
},
};
pub fn router() -> Router<App> {
Router::new()
.route("/api/channels", get(list_channels))
.route("/api/channels", post(on_create))
.route("/api/channels/:channel", post(on_send))
}
async fn list_channels(State(app): State<App>, _: Login) -> Result<Channels, InternalError> {
let channels = app.channels().all().await?;
let response = Channels(channels);
Ok(response)
}
struct Channels(Vec<Channel>);
impl IntoResponse for Channels {
fn into_response(self) -> Response {
let Self(channels) = self;
Json(channels).into_response()
}
}
#[derive(serde::Deserialize)]
struct CreateRequest {
name: String,
}
async fn on_create(
State(app): State<App>,
_: Login, // requires auth, but doesn't actually care who you are
Json(form): Json<CreateRequest>,
) -> Result<Json<Channel>, CreateError> {
let channel = app
.channels()
.create(&form.name)
.await
.map_err(CreateError)?;
Ok(Json(channel))
}
struct CreateError(app::CreateError);
impl IntoResponse for CreateError {
fn into_response(self) -> Response {
let Self(error) = self;
match error {
duplicate @ app::CreateError::DuplicateName(_) => {
(StatusCode::BAD_REQUEST, duplicate.to_string()).into_response()
}
other => InternalError::from(other).into_response(),
}
}
}
#[derive(serde::Deserialize)]
struct SendRequest {
message: String,
}
async fn on_send(
Path(channel): Path<channel::Id>,
RequestedAt(sent_at): RequestedAt,
State(app): State<App>,
login: Login,
Json(form): Json<SendRequest>,
) -> Result<StatusCode, ErrorResponse> {
app.channels()
.send(&login, &channel, &form.message, &sent_at)
.await
// Could impl `From` here, but it's more code and this is used once.
.map_err(ErrorResponse)?;
Ok(StatusCode::ACCEPTED)
}
struct ErrorResponse(EventsError);
impl IntoResponse for ErrorResponse {
fn into_response(self) -> Response {
let Self(error) = self;
match error {
not_found @ EventsError::ChannelNotFound(_) => {
(StatusCode::NOT_FOUND, not_found.to_string()).into_response()
}
other => InternalError::from(other).into_response(),
}
}
}
|
