APAbhisek Pandainabhisekpanda.hashnode.dev·Jul 27 · 18 min readPhase 3: Rate Limiting — Protecting Backend Services from Traffic SpikesA Deep Dive into Token-Bucket Rate Limiting with Redis and Spring Cloud Gateway Introduction In Phase 2, we built a security pipeline — JWT authentication, API key authentication, RBAC, and request v00
APAbhisek Pandainabhisekpanda.hashnode.dev·Jul 20 · 37 min readPhase 2: Securing the Gateway — JWT, API Keys, RBAC, and Request ValidationA Deep Dive into Building a Production-Grade Security Layer for a Spring Cloud Gateway Introduction In Phase 1, we built the skeleton of Aegis Gateway — a reactive API gateway built on Spring Cloud G00
APAbhisek Pandainabhisekpanda.hashnode.dev·Jul 16 · 7 min readBuilding an API Gateway with Spring Cloud Gateway (Phase 1)Part 1: From Reverse Proxy to Smart Routing Series: Building Aegis Gateway with Spring Boot 4 & Spring Cloud GatewayPhase: 1 - Core GatewayDuration: 2 Days Introduction When people hear API Gateway00
APAbhisek Pandainabhisekpanda.hashnode.dev·Jul 14 · 5 min readBuilding Aegis Gateway: A Production-Ready API Gateway with Spring BootA backend engineering series where we build a production-inspired API Gateway from scratch. Over the past few months, I've been building increasingly complex backend systems. The journey started with00
APAbhisek Pandainabhisekpanda.hashnode.dev·Jul 11 · 6 min readBuilding an Observable Agentic RAG with LangGraph: Week 6 of SentinelRAG"You can't improve what you can't observe." After transforming SentinelRAG into a self-healing, agentic RAG system in Week 5, I realized something important: The system could make intelligent decisio00
