effect-ts

Implement dependency injection in Effect-TS using Context.Tag-based services and Layer composition to provide dependencies safely. This approach structures functional apps by isolating service logic and passing contexts through typed layers.

Handle typed errors in Effect-TS by leveraging Effect primitives for safe error management and structured error handling. This Skill provides patterns to define typed errors and manage failures functionally without breaking application composability.

Test Effect-TS layers and services by utilizing Layer composition to swap dependencies with test mocks. This Skill covers testing patterns that ensure your functional services remain isolated, composable, and verifiable during unit tests.

You can integrate Effect-TS with Next.js applications using specific patterns for functional app development. This Skill provides guidance on combining Effect primitives, dependency injection, and typed error handling within the Next.js framework.

Use Layer composition in Effect-TS when building complex applications that require safe dependency injection and modular error handling. Layers allow you to assemble services functionally, ensuring dependencies are resolved safely and testably at application boundaries.