*You Don't Know the Gateway Layer!* | Reverse Proxy vs Load Balancer vs API Gateway What actually happens between a user request and your backend server? In this video, we break down the *Gateway Layer* — the hidden infrastructure powering modern backend systems — and explain the difference between *Reverse Proxies, Load Balancers, and API Gateways*. If you're preparing for *system design interviews*, learning *backend engineering*, or trying to think like a *Principal Engineer*, this video will help you understand not just *what* these components do — but *why they exist* and *when you should use them*. We simplify concepts like *SSL termination, caching, Layer 4 vs Layer 7 routing, intelligent traffic distribution, API management, authentication, and microservice gateways* using practical architecture examples. 🔥 *What you'll learn in this Gateway Layer tutorial:* 00:00 — The single server bottleneck 01:49 — What happens when your server is exposed? 03:21 — Reverse Proxy explained (SSL, caching, security) 06:35 — Load Balancer explained (traffic distribution & failover) 12:25 — API Gateway explained (microservices, auth, rate limiting) 18:08 — Why these concepts get confusing (Nginx vs Kong vs Envoy) 21:19 — The modern backend architecture 25:28 — Which one do you actually need? (decision framework) 28:27 — Quick recap + key takeaways 💡 *Keywords covered (for learning & interviews):* Reverse Proxy, Load Balancer, API Gateway, Gateway Layer, System Design, Backend Architecture, Microservices, Traffic Routing, SSL Termination, Load Balancing Algorithms, API Management, Distributed Systems, Scalable Backend Design 🎯 *This video is perfect for:* Backend developers (Node.js, Java, Python, Go) Software engineers preparing for system design interviews Students learning backend architecture & distributed systems Anyone building scalable APIs, platforms, or microservices ⚠️ *By the end, you'll understand:* Why reverse proxies exist How load balancers scale backend systems When API Gateways become essential Layer 4 vs Layer 7 traffic routing How large-scale systems manage millions of requests How experienced engineers design the Gateway Layer 💬 *Join our Discord community for coding discussions, backend engineering & system design talks:* [https://discord.gg/VEQtxYyu] ☕ *Support the channel:* *Buy me a Coffee* [https://ko-fi.com/csmadeez] *Buy me a Chai (Indian Audience 🇮🇳)* [https://buymeachai.ezee.li/CsMadeEz] 📈 *Search-friendly topics covered:* Reverse Proxy tutorial Load Balancer explained API Gateway tutorial Reverse Proxy vs Load Balancer vs API Gateway Gateway Layer explained Backend architecture tutorial System design concepts for interviews How scalable backend systems work Scalable systems backend devel 👍 Like, share & subscribe for more *Backend Engineering, System Design & Software Architecture* content. #SystemDesign #BackendDevelopment #ReverseProxy #LoadBalancer #APIGateway #Microservices #DistributedSystems #SoftwareEngineering #Nginx #BackendArchitecture #Programming #PrincipalEngineer #CSMadeEasy
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This is honestly way better than most of the videos on Gateway layer. Absolutely loving your analogies. Fairly underrated content and channel !
Nice video. What tool do you use to make these animations?
Explained nicely. Please do a video on Service Oriented Architecture vs Microservices
Excellent, the breakdown was very helpful and easy to follow. You are right! No need to memorise this after watching this. Keep it up!! Thanks a lot.
Great explanation ❤
I've created a Saas which provides 4 major features 1) Back end observability 2) An Uptime monitor for health check 3) a rate limiter as a service custom conditions set via simple 3 clicks in a dashboard 4) env drift detector looks for a missing or extra env variable in multiple environments All are simple plug and play models install the npm package and use it directly with an API key which uh can easily get from signing up in dashboard. Is the product worth it? Deploying on a large scale? Btw loved the video amazing knowledge
Thats a hidden gem!
... Uh that isn't how my website works uh but I have no problems 😂 also right now it is off why well for maintenance I would say but naw more because I have to give it a break since well rec room shut down I haven't given the Apache part a break so ya anyone who wants to go to my site right now well it is shut down at the moment for well maintenance I can say but ya not maintenance in the traditional sense
Perfect timing. I got e-commerse finals tomorrow and was literally studying this topic when this came up on my algorithm lol. Thanks :3
For some reason I understood everything you deserve to be get subscribed
I knew within a few seconds of the video this was going to explain this attune to my learning style. Thank you!
Tbh this is THE best explanation.
Thank you! I am getting into design and building, and this was very clear. You have a gift. Looking forward to more of your content.
Great video. When you do it, you do it :) Pls continue
I could not take a break for these 20 minutes.
Wow, this is an amazing explanation. Thank you!
Helpful video. Cleared lots of unknowns for me.
Great Explanation as always. Your Videos are good for technical interviews.
Very useful, thanks a lot for the clear explanation!
perfect... Great explanation.