Enum ServiceError 

pub enum ServiceError {
    BadRequest(String),
    NotFound(String),
    Conflict(String),
    Internal(String),
}

Service-level error type that maps cleanly onto HTTP status codes.

Why: handlers want to render 400/404/409/500 from a single point; the service methods produce a typed error so the binding layer can pick the right status without parsing strings. What: four variants matching the legacy ApiError constructors plus a dedicated Conflict for state-clash errors (issue #180: deleting a non-empty palace without force). Test: indirectly via the HTTP tests for the corresponding endpoints.

Variants

BadRequest(String)

NotFound(String)

Conflict(String)

Internal(String)

Implementations

impl ServiceError

pub fn bad_request(msg: impl Into<String>) -> Self

pub fn not_found(msg: impl Into<String>) -> Self

pub fn conflict(msg: impl Into<String>) -> Self

Build a 409 Conflict service error.

Why: palace-delete (issue #180) needs to surface a distinct “state precondition failed” status when the caller asks to delete a non-empty palace without force=true. 400 would be misleading (the request itself is well-formed) and 404 would lie about the resource’s existence. What: wraps the message in ServiceError::Conflict. Test: delete_palace_refuses_when_drawers_present in web::tests.

pub fn internal(msg: impl Into<String>) -> Self

Trait Implementations

impl Debug for ServiceError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ServiceError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for ServiceError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.