Struct Error

pub struct Error {
    pub code: ErrorCode,
    pub message: String,
    pub data: Option<Value>,
}

Re-export commonly used types Core MCP error type

Fields

code: ErrorCode

Error code following MCP specification

message: String

Human-readable error message

data: Option<Value>

Optional additional error data

Implementations

impl Error

pub fn new(code: ErrorCode, message: impl Into<String>) -> Error

Create a new error with the given code and message

pub fn with_data( code: ErrorCode, message: impl Into<String>, data: Value, ) -> Error

Create an error with additional data

pub fn parse_error(message: impl Into<String>) -> Error

Create a parse error

pub fn invalid_request(message: impl Into<String>) -> Error

Create an invalid request error

pub fn method_not_found(method: impl Into<String>) -> Error

Create a method not found error

pub fn invalid_params(message: impl Into<String>) -> Error

Create an invalid params error

pub fn internal_error(message: impl Into<String>) -> Error

Create an internal error

pub fn protocol_version_mismatch( client_version: &str, server_version: &str, ) -> Error

Create a protocol version mismatch error

pub fn unauthorized(message: impl Into<String>) -> Error

Create an authorization error

pub fn forbidden(message: impl Into<String>) -> Error

Create a forbidden error

pub fn resource_not_found(resource: impl Into<String>) -> Error

Create a resource not found error

pub fn tool_not_found(tool: impl Into<String>) -> Error

Create a tool not found error

pub fn validation_error(message: impl Into<String>) -> Error

Create a validation error

pub fn rate_limit_exceeded(message: impl Into<String>) -> Error

Create a rate limit exceeded error

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Error

fn deserialize<__D>( __deserializer: __D, ) -> Result<Error, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Error

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

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 CliError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(err: Error) -> Error

Converts to this type from the input type.

impl From<Error> for Error

fn from(err: Error) -> Error

Converts to this type from the input type.

impl From<ValidationErrors> for Error

fn from(err: ValidationErrors) -> Error

Converts to this type from the input type.

impl PartialEq for Error

fn eq(&self, other: &Error) -> bool

Tests for self and other values to be equal, and is used by ==.

const fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Error

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Error