REST vs GraphQL vs gRPC Explained #systemdesign #coding #ai #code #software #scortier

14/30 API design explained: REST, GraphQL, and gRPC — when each one wins. Your mobile app loads a profile screen. 7 separate API calls. Each waits for the last. Why so slow? How clients talk to servers shapes everything — round trips, payload size, type safety. Pick wrong and your app crawls. REST is the OG: HTTP verbs, URLs as resources. Easy, everywhere, but over-fetches data. GraphQL: one endpoint, ask for exactly what you need. gRPC: binary protocol, HTTP/2, blazing fast for service-to-service. Here's the trick. Each was built for a different problem. REST for public reach. GraphQL for mobile screens. gRPC for internal microservices. Wrong layer, wrong tradeoffs. Stripe and GitHub run REST. Facebook built GraphQL for mobile feeds. Google and Uber run gRPC between internal services. There's no winner. There's a right tool per layer. Part 14 of a 30-reel system design series. Full playlist on the channel. #systemdesign #api #graphql #grpc **YouTube Tags:** rest vs graphql vs grpc, api design, graphql explained, grpc tutorial, rest api, http api, microservices api, mobile api design, system design, public api, system design for beginners, protobuf, http/2