Mastering TypeScript: From Fundamentals to Type-Level Programming & Functional Effect-TS
Master TypeScript from the ground up to advanced type-level metaprogramming and functional architecture powered by Effect-TS. Modeled after the world-class TotalTypeScript curriculum by Matt Pocock.
(COMING SOON) Moving from object-oriented patterns to functional programming, leveraging pure algebraic data types and the immensely powerful Effect-TS ecosystem.
We assemble the ultimate functional backend. Learn how to combine Layers, Context, Schema Validation, Error Handling, and Resource Management into a massive, production-grade Express REST API using @effect/platform.
Learn how to safely acquire and release resources like database connections and file streams. The Scope API replaces try/finally blocks, guaranteeing cleanup even if your application crashes.
TypeScript interfaces do not exist at runtime. To protect your application from malformed API payloads and corrupted database rows, learn how to use @effect/schema to parse and validate data perfectly.
Learn how Effect-TS implements Fibers (green threads) to allow millions of concurrent operations. Master Effect.all, concurrency limits, and safe interruption of background tasks.
Providing single services is easy, but enterprise applications have massive dependency graphs. Learn how to use Effect Layers to wire services together, handle async initialization, and resolve graphs perfectly.
Eliminate global singletons and complex IoC containers. Learn how the R parameter in Effect<A, E, R> forces you to provide dependencies before your program can run, ensuring perfect testability.
Effect-TS completely reimagines error handling. Learn the difference between Expected Failures and Unexpected Defects, and how to use catchTag to build resilient, self-documenting pipelines.
To use Effect-TS, you must know how to bridge the gap between the chaotic outside world and your pure functional pipeline. Master the constructors and execution methods of the Effect runtime.
The heart of Effect-TS is its three-parameter type signature. Master the A (Success), E (Error), and R (Requirement) parameters to unlock perfect architectural safety.
We have built the functional foundation. Now it is time to enter the ecosystem. Discover why Effect-TS is rapidly becoming the standard library for enterprise TypeScript, and run your first pure asynchronous program.