Enum SendError 

#[non_exhaustive]
pub enum SendError {
    StreamClosed,
    Serialization(Box<dyn Error + Send + Sync + 'static>),
}

An error returned when sending a request over a stream fails.

Returned by RequestSender::send.

Examples

fn handle_error(err: SendError) {
    match err {
        SendError::StreamClosed => {
            println!("Stream closed; check ResponseStream for server status");
        }
        SendError::Serialization(e) => {
            println!("Failed to serialize request: {e:?}");
        }
        _ => println!("Other send error"),
    }
}

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.

StreamClosed

The stream was closed by the server or receiver.

In bidirectional streaming, the underlying server status error (e.g., InvalidArgument, PermissionDenied) is returned by ResponseStream::next.

Serialization(Box<dyn Error + Send + Sync + 'static>)

Serialization / proto conversion of the request failed.

Trait Implementations

impl Debug for SendError

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

Formats the value using the given formatter.

impl Display for SendError

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

Formats the value using the given formatter.

impl Error for SendError

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.