Enum AppErrorKind 

pub enum AppErrorKind {
    Unauthorized,
    BadRequest,
    NotFound,
    Conflict,
    Internal,
    FormationCycle,
    FormationMultipleCoordinators,
    FormationNoCoordinator,
    FormationAuthorityNotNarrowing,
}

Stable error identifier. Adding a variant is a non-breaking change; renaming one IS breaking (clients pin on type).

Variants

Unauthorized

BadRequest

NotFound

Conflict

Internal

FormationCycle

Discriminants from ADR-0010 §Enforcement: cellos-server admission gate rejection reasons. Surfaced via application/problem+json so cellctl can switch on type without parsing detail.

FormationMultipleCoordinators

FormationNoCoordinator

FormationAuthorityNotNarrowing

Implementations

impl AppErrorKind

pub fn status(self) -> StatusCode

pub fn type_uri(self) -> &'static str

type URI identifier per RFC 9457 §3.1. We use relative URI references rooted at /problems/ so the server’s deployment URL does not affect the stable identifier.

pub fn title(self) -> &'static str

Trait Implementations

impl Clone for AppErrorKind

fn clone(&self) -> AppErrorKind

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AppErrorKind

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

Formats the value using the given formatter.

impl Copy for AppErrorKind