xmcp/dist/types/middleware.d.ts

The TypeScript MCP framework

import type { RequestHandler, Router } from "express";
import type { AuthInfo } from "@modelcontextprotocol/server";
export type RequestHandlerAndRouter = {
    middleware: RequestHandler;
    router: Router;
};
export type Middleware = RequestHandler | RequestHandlerAndRouter;
export type WebMiddlewareContext = {
    auth?: AuthInfo;
    setAuth: (auth: AuthInfo) => void;
};
export type WebMiddleware = (request: Request, context: WebMiddlewareContext) => Promise<Response | void> | Response | void;