Enum Error

pub enum Error {
    Protocol {
        code: ErrorCode,
        message: String,
        data: Option<Value>,
    },
    Transport(String),
    Serialization(String),
    Io(String),
    Other(String),
}

Main error type for MCP operations

Variants

Protocol

Protocol error with code and message

Fields

code: ErrorCode

The error code

message: String

A message providing more details about the error

data: Option<Value>

Optional additional data about the error

Transport(String)

Transport-related errors

Serialization(String)

Serialization/deserialization errors

Io(String)

IO-related errors

Other(String)

Other miscellaneous errors

Implementations

impl Error

pub fn protocol(code: ErrorCode, message: impl Into<String>) -> Self

Create a new protocol error.

Arguments

• code - The error code
• message - A message describing the error

pub fn with_data(self, data: Value) -> Self

Create a new error with additional data.

Arguments

• data - Additional data to attach to the error

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

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(err: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<Error> for ResponseError

fn from(err: Error) -> Self

Converts to this type from the input type.