End-to-End Type-Safe APIs with tRPC
tRPC eliminates the gap between your TypeScript backend and frontend by sharing a single type definition — no code generation, no OpenAPI spec, no mismatched contracts. When a procedure signature changes on the server, TypeScript catches every affected call site on the client at compile time. That guarantee makes tRPC a practical choice for full-stack Next.js applications and any monorepo where the API and the consumer live in the same codebase.
What You Will Learn
You will define routers and procedures, validate inputs with Zod, and write both queries and mutations. The track covers context and middleware for auth and request-scoped data, structured error handling with custom error transformers, and deep integration with Next.js and React Query. Later courses address testing tRPC APIs end to end, building real-time subscriptions, and organising a production monorepo with shared type packages and advanced patterns like procedure chaining and reusable middleware stacks.
The Learning Path
Ten courses span A1 through C1. The track opens with Introduction to tRPC & Type Safety and Defining Routers and Procedures, then moves through B1 validation and mutation patterns into the B2 group — Context and Middleware, Error Handling and Transformers, and the practical Next.js & React Query integration. The final two C1 courses, Real-time Subscriptions with tRPC and Monorepo Structure & Advanced Patterns, cover the architectural concerns that appear in large-scale production deployments.
How It Works
Each course is split into short, focused lessons you complete in the built-in code editor with real-time feedback. An AI tutor is available whenever you get stuck, and every concept is reinforced with exercises that run against a real TypeScript environment so you can verify type safety as you go.
