GraphQL Federation: The Architecture That Powers Netflix's 70+ Microservices

This is a continuation of Previous GraphQL Video:    • Netflix's GRAPHQL Secret to Handling BILLI...   In this hands-on tutorial, we’ll build a federated GraphQL API inspired by Netflix’s architecture. We’ll start with three microservices: Users, Movies, and Review and unify them under Apollo Router. By the end, you’ll see how a single query can fetch data across services, just like Netflix handles billions of requests. Whether you're new to Federation or looking to scale, this is your step-by-step guide. Resources: ByteMonk Blog: https://blog.bytemonk.io/ System Design Course: https://academy.bytemonk.io/courses LinkedIn:   / bytemonk   Github: https://github.com/bytemonk-academy (Code will be pushed soon) Previous GraphQL Video:    • Netflix's GRAPHQL Secret to Handling BILLI...   Timestamps 00:00 Building GraphQL Federation From Scratch 00:54 The System Architecture (3 Microservices + Router) 01:50 What GraphQL Federation Actually Solves 02:12 Federation vs Schema Stitching 02:25 Subgraphs vs Supergraph (Federation Mental Model) 03:50 Monorepo Structure for Microservices 04:15 Building the User Subgraph 04:52 The @key Directive (Entity Identity) 05:22 The resolveReference Resolver 06:13 buildSubgraphSchema (Common Beginner Mistake) 07:05 The Review Subgraph (Entity Extension) 07:50 Entity References Between Services 09:19 Apollo Router & Supergraph Composition 09:58 How the Apollo Router Works 10:10: About Monday.com 12:02 Running the Final Federated Query 12:25 Where to Go Next (Production Improvements)    • System Design Interview Basics      • System Design Questions      • LLM      • Machine Learning Basics      • Microservices      • Emerging Tech   #graphql #rest #bytemonk #distributedsystems