Enum McpError 

pub enum McpError {
    Io(Error),
    Json(Error),
    Handler(Box<dyn Error + Send + Sync>),
}

The primary error type for all fallible operations in the mcp-rust-sdk.

Variants

Io(Error)

An error occurred during I/O operations (e.g., reading from stdin or writing to stdout).

Json(Error)

An error occurred during JSON serialization or deserialization.

Handler(Box<dyn Error + Send + Sync>)

An error returned by the user-provided handler function. We wrap it in a Box to allow for any error type that implements std::error::Error.

Trait Implementations

impl Debug for McpError

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

Formats the value using the given formatter.

impl Display for McpError

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

Formats the value using the given formatter.

impl Error for McpError

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 McpError

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<Error> for McpError

fn from(err: Error) -> Self

Converts to this type from the input type.