mentedb_server/
error.rs

1//! API error types with automatic HTTP status code mapping.
2
3use axum::http::StatusCode;
4use axum::response::{IntoResponse, Response};
5use serde_json::json;
6
7/// Unified API error type.
8#[derive(Debug)]
9#[allow(dead_code)]
10pub enum ApiError {
11    BadRequest(String),
12    NotFound(String),
13    Conflict(String),
14    Unauthorized(String),
15    Forbidden(String),
16    RateLimited,
17    Internal(String),
18    ServiceUnavailable(String),
19}
20
21impl std::fmt::Display for ApiError {
22    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
23        match self {
24            Self::BadRequest(msg) => write!(f, "bad request: {msg}"),
25            Self::NotFound(msg) => write!(f, "not found: {msg}"),
26            Self::Conflict(msg) => write!(f, "conflict: {msg}"),
27            Self::Unauthorized(msg) => write!(f, "unauthorized: {msg}"),
28            Self::Forbidden(msg) => write!(f, "forbidden: {msg}"),
29            Self::RateLimited => write!(f, "rate limited"),
30            Self::Internal(msg) => write!(f, "internal error: {msg}"),
31            Self::ServiceUnavailable(msg) => write!(f, "service unavailable: {msg}"),
32        }
33    }
34}
35
36impl IntoResponse for ApiError {
37    fn into_response(self) -> Response {
38        let (status, message) = match &self {
39            Self::BadRequest(msg) => (StatusCode::BAD_REQUEST, msg.clone()),
40            Self::NotFound(msg) => (StatusCode::NOT_FOUND, msg.clone()),
41            Self::Conflict(msg) => (StatusCode::CONFLICT, msg.clone()),
42            Self::Unauthorized(msg) => (StatusCode::UNAUTHORIZED, msg.clone()),
43            Self::Forbidden(msg) => (StatusCode::FORBIDDEN, msg.clone()),
44            Self::RateLimited => (
45                StatusCode::TOO_MANY_REQUESTS,
46                "too many requests".to_string(),
47            ),
48            Self::Internal(msg) => (StatusCode::INTERNAL_SERVER_ERROR, msg.clone()),
49            Self::ServiceUnavailable(msg) => (StatusCode::SERVICE_UNAVAILABLE, msg.clone()),
50        };
51
52        let body = json!({ "error": message });
53        (status, axum::Json(body)).into_response()
54    }
55}
mentedb_server/error.rs

mentedb_server/
error.rs
