Enum TransportError 

pub enum TransportError {
    Connect,
    Timeout,
    Request(String),
    Other(String),
    Reqwest(Error),
}

Errors a transport can return. Variants map onto FetchError without leaking internal hostnames/IPs (TM-LEAK-001).

Custom transports use the generic Connect, Timeout, Request, and Other variants. The Reqwest variant lets the default ReqwestTransport preserve reqwest’s precise error classification (so historical FetchError mapping is unchanged); custom transports never need it.

Variants

Connect

Failed to establish a connection (DNS/connect/TLS).

Timeout

Timed out waiting for the server.

Request(String)

Error issuing the request or reading the response.

Other(String)

Any other transport failure.

Reqwest(Error)

A raw reqwest error from the default transport (preserves precise classification).

Trait Implementations

impl Debug for TransportError

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

Formats the value using the given formatter.

impl Display for TransportError

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

Formats the value using the given formatter.

impl Error for TransportError

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.

impl From<TransportError> for FetchError

fn from(err: TransportError) -> Self

Converts to this type from the input type.