Enum FetchError 

pub enum FetchError {
    NotFound(String),
    NetworkNotImplemented,
    Network(String),
    Timeout {
        timeout_ms: u64,
    },
    HttpStatus {
        status: u16,
        url: String,
    },
    UnsupportedContentType(String),
    Url(UrlError),
    Cache(String),
    Security(SecurityError),
}

Fetch errors.

Variants

NotFound(String)

No response is registered for the requested URL.

NetworkNotImplemented

Real network IO is unavailable for this fetcher.

Network(String)

Network IO failed.

Timeout

The network operation timed out.

Fields

timeout_ms: u64

Timeout budget in milliseconds.

HttpStatus

The server returned a non-success HTTP status.

Fields

status: u16

HTTP status code.

url: String

URL associated with the status.

UnsupportedContentType(String)

The response MIME type is not supported for text transformation.

Url(UrlError)

A URL returned by the transport was invalid or unsafe.

Cache(String)

Cache lookup failed while handling a network fallback.

Security(SecurityError)

A security policy rejected the response.

Implementations

impl FetchError

pub fn is_transient(&self) -> bool

Returns whether retrying or falling back to cache is reasonable.

Trait Implementations

impl Clone for FetchError

fn clone(&self) -> FetchError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FetchError

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

Formats the value using the given formatter.

impl Display for FetchError

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

Formats the value using the given formatter.

impl Error for FetchError

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 PartialEq for FetchError

fn eq(&self, other: &FetchError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for FetchError

impl StructuralPartialEq for FetchError