Effect-TS Expert

Expert-level guidance for Effect-TS functional programming with typed errors, dependency injection, concurrency, and production-ready patterns.

Core Concepts

The Effect Type

Effect<Success, Error, Requirements>
//     ^        ^       ^
//     |        |       └── Services/dependencies needed (Context)
//     |        └────────── Typed error channel
//     └─────────────────── Success value type

Key insight: Effects are lazy descriptions of computations. They don't execute until run.

Creating Effects