rust-mcp-sdk 0.9.0

An asynchronous SDK and framework for building MCP-Servers and MCP-Clients, leveraging the rust-mcp-schema for type safe MCP Schema Objects.
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use std::net::AddrParseError;

use axum::{http::StatusCode, response::IntoResponse};
use thiserror::Error;

#[cfg(feature = "auth")]
use crate::auth::AuthenticationError;

pub type TransportServerResult<T> = core::result::Result<T, TransportServerError>;

#[derive(Debug, Error, Clone)]
pub enum TransportServerError {
    #[error("'sessionId' query string is missing!")]
    SessionIdMissing,
    #[error("No session found for the given ID: {0}.")]
    SessionIdInvalid(String),
    #[error("Stream IO Error: {0}.")]
    StreamIoError(String),
    #[error("{0}")]
    AddrParseError(#[from] AddrParseError),
    #[error("{0}")]
    HttpError(String),
    #[error("Server start error: {0}")]
    ServerStartError(String),
    #[error("Invalid options: {0}")]
    InvalidServerOptions(String),
    #[error("{0}")]
    SslCertError(String),
    #[error("{0}")]
    TransportError(String),
    #[cfg(feature = "auth")]
    #[error("{0}")]
    AuthenticationError(#[from] AuthenticationError),
}

impl IntoResponse for TransportServerError {
    //consume self and returns a Response
    fn into_response(self) -> axum::response::Response {
        let mut response = StatusCode::INTERNAL_SERVER_ERROR.into_response();
        response.extensions_mut().insert(self);
        response
    }
}