Enum RegistrationError 

pub enum RegistrationError {
    InvalidRedirectUri(String),
    InvalidClientMetadata(String),
    Auth(AuthError),
}

RFC 7591 §3.2.2 requires /register errors to be reported as HTTP 400 with a {"error": ..., "error_description": ...} body using one of the RFC’s defined error codes — unlike the generic AuthError -> IntoResponse impl in error.rs, which returns 422 with a {"kind", "message"} body. This is register_client’s dedicated error type, mirroring TokenEndpointError in token.rs for the /token endpoint (RFC 6749 §5.2).

Variants

InvalidRedirectUri(String)

A redirect_uris entry failed validation (RFC 7591 §3.2.2).

InvalidClientMetadata(String)

application_type (or another client-metadata field) failed validation.

Auth(AuthError)

Any other failure surfaced from shared auth infrastructure (rate limiting, storage). Status codes are preserved from AuthError’s own semantics, but the response body still uses the RFC 7591 error/error_description shape for consistency within this endpoint’s responses.

Trait Implementations

impl From<AuthError> for RegistrationError

fn from(error: AuthError) -> Self

Converts to this type from the input type.

impl IntoResponse for RegistrationError

fn into_response(self) -> Response

Create a response.