Securing the Client: The BFF Pattern in Next.js 🛡️
The Danger of Direct Client-to-Microservice Communication In the era of decentralized architecture, enterprise applications are often backed by dozens of isolated microservices. There is a microservice for Billing, one for User Profiles, another for Search, and a separate API for Recommendations. Historically, Single Page Applications (SPAs) built with React were tasked with orchestrating all of this logic directly from the user's browser. The frontend would fire off five separate HTTP requests
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.