Enum MiddlewareError 

#[non_exhaustive]
pub enum MiddlewareError {
    Unauthenticated(String),
    HttpChallenge {
        status: u16,
        www_authenticate: String,
    },
    Forbidden(String),
    Internal(String),
}

Middleware errors produce HTTP responses directly via the Tower layer. These never become A2aError variants or JSON-RPC error objects.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Unauthenticated(String)

401 — no credentials or invalid credentials.

HttpChallenge

401 with WWW-Authenticate challenge header.

Fields

status: u16

www_authenticate: String

Forbidden(String)

403 — credentials valid but insufficient permissions.

Internal(String)

500 — internal middleware failure (fatal, short-circuits AnyOf).

Implementations

impl MiddlewareError

pub fn http_status(&self) -> u16

Trait Implementations

impl Clone for MiddlewareError

fn clone(&self) -> MiddlewareError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MiddlewareError

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

Formats the value using the given formatter.