Enum Error 

#[non_exhaustive]
pub enum Error {
    Reqwest(Error),
    InvalidProxy {
        proxy: String,
        source: Box<dyn Error + Send + Sync + 'static>,
    },
    Build(Error),
}

Errors produced by RotatingClient and its builder.

HTTP status codes are never errors: after the last attempt the response is handed back as-is, whatever its status, exactly like reqwest does. Use Response::error_for_status if you want a non-2xx status to become an error.

Where a variant wraps a reqwest::Error, that error is this one’s source; Reqwest and Build do not repeat it in their own message. InvalidProxy is the exception: its message includes the reason for readability even though the same text is also reachable through source.

Marked #[non_exhaustive]: new variants may be added in a minor release without that counting as a breaking change.

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.

Reqwest(Error)

A request failed at the reqwest layer (network error, timeout, invalid URL, …). Returned directly for failures that are not retried, and as the last attempt’s failure once retries are used up on a transient transport error.

InvalidProxy

A proxy URL is blank, cannot be parsed, or uses a scheme this build does not support (SOCKS schemes need the socks feature); or a syntactically valid proxy was rejected when the underlying reqwest::Client was built.

source carries the reason: either a plain-text explanation with no cause of its own, or the reqwest::Error from the failed client build.

Fields

proxy: String

The proxy URL as far as it could be read, or the caller’s own spelling if it could not be parsed at all. Credentials are always redacted.

source: Box<dyn Error + Send + Sync + 'static>

Why the proxy was rejected.

Build(Error)

The underlying reqwest::Client could not be built: an invalid TLS or proxy configuration, usually.

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.