Advanced MCP Server

import { Request, Response, NextFunction } from 'express'; import { policyEngine } from '../index'; import { PolicyEvaluationContext } from '../models/Policy'; /** * Rate limiting middleware * @param req Request * @param res Response * @param next Next function */ export function rateLimitMiddleware(req: Request, res: Response, next: NextFunction): void { const context: PolicyEvaluationContext = { sessionId: req.headers['x-session-id'] as string || 'unknown', ipAddress: req.ip || 'unknown', resource: req.path, action: 'rateLimit', timestamp: new Date() }; if (policyEngine.isActionAllowed(context)) { next(); } else { res.status(429).json({ error: 'Rate limit exceeded', message: 'Too many requests, please try again later' }); } }