APAbhisek Pandainabhisekpanda.hashnode.dev·5d ago · 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
APAbhisek Pandainabhisekpanda.hashnode.dev·Jul 6 · 6 min readBuilding an Agentic Self-Healing RAG with LangGraph | Week 5 of SentinelRAGIf you've built a Retrieval-Augmented Generation (RAG) system before, you've probably ended up with something like this: User Query │ ▼ Retrieve Documents │ ▼ Generate Answer │ 00
