Enum RpcHandlerError 

pub enum RpcHandlerError {
    Application {
        code: u16,
        message: String,
    },
    Internal(String),
}

Handler-side error that doesn’t fit the application’s normal Ok(RpcResponsePayload) channel. The fold maps these onto a failure-status RpcResponsePayload for the caller.

Variants

Application

Application-defined error. The fold encodes this as RpcStatus::Application(code) with message as the body.

Fields

code: u16

Application error code; surfaces as RpcStatus::Application(code) to the caller. Use 0x8000..=0xFFFF to avoid the reserved canonical range.

message: String

Diagnostic. Becomes the response body (UTF-8 bytes).

Internal(String)

Catch-all for handler-internal failures. The fold encodes this as RpcStatus::Internal with message as the body.

Trait Implementations

impl Debug for RpcHandlerError

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

Formats the value using the given formatter.

impl Display for RpcHandlerError

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

Formats the value using the given formatter.

impl Error for RpcHandlerError

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.