Enum BearerTokenError 

#[non_exhaustive]
pub enum BearerTokenError {
    Transport(Error),
    Status {
        status: u16,
        body: String,
    },
    Malformed(String),
}

Raised when a BearerTokenProvider cannot produce a bearer token.

The variants cover what a provider that does its own HTTP typically hits. A provider is free to use whichever fits; Malformed doubles as the catch-all for a failure that isn’t transport or status shaped (an expired refresh token, a missing keyring entry, …).

Marked #[non_exhaustive]: new failure modes may be added in future releases without a breaking change, so downstream matches should carry a wildcard arm.

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.

Transport(Error)

Transport-level failure (connection refused, TLS error, timeout, …).

Status

An upstream credential endpoint returned a non-success HTTP status.

Fields

status: u16

body: String

Malformed(String)

The credential could not be parsed, or is otherwise unusable.

Trait Implementations

impl Debug for BearerTokenError

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

Formats the value using the given formatter.

impl Display for BearerTokenError

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

Formats the value using the given formatter.

impl Error for BearerTokenError

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.