v0.0.3

src/error.rs

@@ -33,6 +33,8 @@ pub enum AppError {
     Forbidden(String),
     /// Service unavailable (503).
     ServiceUnavailable(String),
+    /// Request payload is larger than the configured mail limit (413).
+    PayloadTooLarge(String),
 }
 
 impl AppError {
@@ -45,6 +47,7 @@ impl AppError {
             AppError::BadRequest(_) => StatusCode::BAD_REQUEST,
             AppError::Forbidden(_) => StatusCode::FORBIDDEN,
             AppError::ServiceUnavailable(_) => StatusCode::SERVICE_UNAVAILABLE,
+            AppError::PayloadTooLarge(_) => StatusCode::PAYLOAD_TOO_LARGE,
         }
     }
 
@@ -57,6 +60,7 @@ impl AppError {
             AppError::BadRequest(_) => "BAD_REQUEST",
             AppError::Forbidden(_) => "FORBIDDEN",
             AppError::ServiceUnavailable(_) => "SERVICE_UNAVAILABLE",
+            AppError::PayloadTooLarge(_) => "PAYLOAD_TOO_LARGE",
         }
     }
 
@@ -68,7 +72,8 @@ impl AppError {
             | AppError::Unauthorized(msg)
             | AppError::BadRequest(msg)
             | AppError::Forbidden(msg)
-            | AppError::ServiceUnavailable(msg) => msg,
+            | AppError::ServiceUnavailable(msg)
+            | AppError::PayloadTooLarge(msg) => msg,
         }
     }
 }
@@ -162,6 +167,15 @@ mod tests {
         assert_eq!(json["error"]["status"], 403);
     }
 
+    #[tokio::test]
+    async fn payload_too_large_returns_413() {
+        let (status, json) =
+            error_to_json(AppError::PayloadTooLarge("message too large".into())).await;
+        assert_eq!(status, StatusCode::PAYLOAD_TOO_LARGE);
+        assert_eq!(json["error"]["code"], "PAYLOAD_TOO_LARGE");
+        assert_eq!(json["error"]["status"], 413);
+    }
+
     #[tokio::test]
     async fn service_unavailable_returns_503() {
         let (status, json) = error_to_json(AppError::ServiceUnavailable("IMAP down".into())).await;