GraphQL Tutorial — Complete Guide
GraphQL is the modern alternative to REST for building flexible, efficient APIs. This 15-lesson course takes you from core concepts and schema design all the way to building real-time subscriptions, optimizing with DataLoader, and deploying to production.
► Course Curriculum
| Lesson | Topic |
|---|---|
| Lesson 1 | What is GraphQL? |
| Lesson 2 | Schema Definition Language (SDL) |
| Lesson 3 | Writing Queries & Fields |
| Lesson 4 | Mutations — Creating & Updating Data |
| Lesson 5 | Subscriptions & Real-Time Data |
| Lesson 6 | Resolvers & Execution Model |
| Lesson 7 | Variables, Arguments & Directives |
| Lesson 8 | Types — Scalars, Enums & Interfaces |
| Lesson 9 | Building with Apollo Server |
| Lesson 10 | Apollo Client with React |
| Lesson 11 | DataLoader & N+1 Problem |
| Lesson 12 | Authentication & Authorization |
| Lesson 13 | Pagination with Relay Connections |
| Lesson 14 | Testing GraphQL APIs |
| Lesson 15 | Production, Persisted Queries & Monitoring |