Enum Error 

#[non_exhaustive]
pub enum Error {
    Config(&'static str),
    Subscription(&'static str),
    Cache(&'static str),
    Transport(Error),
    Io(Error),
    NoProxyAvailable,
    PoolSaturated,
    Initialization(Vec<SourceReport>),
}

Errors do not include subscription contents or credential-bearing URLs.

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.

Config(&'static str)

Invalid configuration or proxy endpoint.

Subscription(&'static str)

Subscription retrieval or parsing failed.

Cache(&'static str)

Cache validation or asynchronous cache work failed.

Transport(Error)

A network failure with its URL removed.

Io(Error)

Local file access failed.

NoProxyAvailable

No node is currently eligible; requests are never silently sent directly.

PoolSaturated

Healthy nodes exist, but all have reached their configured concurrency limit.

Initialization(Vec<SourceReport>)

A configured subscription pool could not load any supported nodes.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(error: Error) -> Self

Converts to this type from the input type.