Build Production GraphQL APIs with Spring Boot
GraphQL gives API clients precise control over what data they request, eliminating over-fetching and under-fetching that REST endpoints routinely cause. This track teaches you to design, build, and operate GraphQL APIs on the JVM using Spring Boot — the combination that powers data layers at companies running high-traffic Java services. You will go from standing up your first schema to federating multiple services into a unified graph.
What You Will Learn
You will define schemas with queries, mutations, and strongly typed relationships, then move into error handling, API security, and testing strategies. Advanced topics include real-time data delivery with GraphQL Subscriptions, efficient batch loading with DataLoaders, writing custom directives, stitching schemas together, performance optimization techniques, and finally federating independent Spring Boot services into a single graph with GraphQL Federation.
The Learning Path
Twelve courses progress from A1 through C2. The first course covers GraphQL fundamentals and Spring Boot project setup. A1 and A2 establish queries and core data types; B1 and B2 add mutations, schema relationships, error handling, security, testing, and deployment. The final four C1 and C2 courses — Subscriptions, DataLoaders, Custom Directives and Schema Stitching, Advanced Performance Optimization, and GraphQL Federation — tackle the distributed and high-performance patterns you need in real production systems.
How It Works
Each course is split into short, hands-on lessons you complete in the built-in code editor with real-time feedback. When you get stuck, an AI tutor answers questions in context so you keep moving without leaving the app.
