API Gateway Explained in 60 Seconds 🔥 | Day 12 System Design |

Day 12 of System Design series by Codevian! In this short, I explain what an API Gateway is, why every backend uses one, and how it works — in the simplest way possible with a block diagram. Topics covered: ✅ What is an API Gateway ✅ Auth & Rate Limiting ✅ Request Routing ✅ Real-world usage (AWS, Kong, Nginx) Perfect for SDE interviews, placements, and backend development learning. 🔔 Subscribe for daily system design drops — Day 13 coming tomorrow! #SystemDesign #APIGateway #Codevian #SDE #BackendDevelopment #Shorts