API Gateway vs Load Balancer vs Reverse Proxy Explained | System Design HLD | Microservices
Автор: Rajat Verma
Загружено: 2026-03-07
Просмотров: 44
Описание:
If you're studying for a system design interview or building a modern backend, you’ve probably heard of Reverse Proxies, Load Balancers, and API Gateways. People often use these terms interchangeably because tools like NGINX can technically do all three. But architecturally, they have entirely different jobs.
In this video, we break down exactly what each component does and how they stack together in a massive enterprise architecture. We'll visualize how traffic flows through:
The Reverse Proxy: Your first line of defense. We look at how it provides anonymity, terminates SSL connections, and caches static files so requests never even hit your backend.
The Load Balancer: The traffic cop. We explain how it distributes high-volume traffic across multiple identical server instances to ensure high availability and prevent crashes.
The API Gateway: The brain of your microservices. We explore how it operates at Layer 7 to handle JWT authentication, rate limiting, and smart routing to different backend services based on the URL path.
#SystemDesign #Backend #Microservices #SoftwareEngineering #WebArchitecture #APIGateway #LoadBalancer #ReverseProxy #TechEducation #Networking
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