Enum Error 

pub enum Error {
    NoAvailableServer,
    NotFound,
    Rpc(ErrorObject),
    Http {
        status: u16,
        method: String,
        body: String,
    },
    Transport(Error),
    Json(Error),
    Other(String),
}

Errors returned by RPC operations.

Variants

NoAvailableServer

No servers were provided or none were reachable. Returned by evaluate and RpcList.

NotFound

The method was not found locally and no host is configured (the RPC was created with an empty host and only handles overrides).

Rpc(ErrorObject)

A JSON-RPC error object returned by the server. This is a valid response — it is not retried against other servers by RpcList.

Http

A non-2xx HTTP status was returned with a body that was not a JSON-RPC error. body is a trimmed snippet (at most 200 bytes).

Fields

status: u16

The HTTP status code.

method: String

The RPC method that was being called.

body: String

A trimmed snippet of the response body.

Transport(Error)

A transport-level failure from the underlying HTTP client.

Json(Error)

A JSON encoding or decoding failure.

Other(String)

Any other error (e.g. an override function failure, or an unsupported argument shape).

Implementations

impl Error

pub fn is_rpc_error(&self) -> bool

Reports whether this error is a JSON-RPC error object (a valid response from the server). Mirrors Go’s errors.As(err, &*ErrorObject).

pub fn as_rpc_error(&self) -> Option<&ErrorObject>

Returns the underlying ErrorObject if this is a JSON-RPC error.

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(source: Error) -> Self

Converts to this type from the input type.