What is dependency injection in Effect?

Dependency injection in Effect is a pattern for managing requirements using Context (to define what a service is) and Layers (to define how a service is constructed), ensuring type-safety and modularity.

Can I use this skill to mock services for testing?

Yes, it provides patterns for creating in-memory or mock implementations of services and swapping them into the dependency graph using Layer.provide or Effect.provideService.

What are Scoped Layers in Effect?

Scoped Layers are used for services that require lifecycle management, such as opening and closing database connections or file handles, using finalizers for guaranteed cleanup.

How do I define a service with this skill?

Services are defined using Context.GenericTag to create a unique identifier for an interface, which can then be implemented by various Layers.

Effect Dependency Injection

Name: Effect Dependency Injection
Author: TheBushidoCollective

byTheBushidoCollective

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API 开发

Manages complex dependency graphs and service lifecycles in Effect-based TypeScript applications using type-safe Context and Layers.

This skill empowers Claude to architect robust, testable TypeScript applications by mastering the Effect library's dependency injection system. It provides comprehensive patterns for defining service interfaces with type-safe Tags, constructing modular Layers for service implementations, and composing sophisticated dependency graphs using pipelines and merging. From managing database connections with automatic cleanup via scoped layers to implementing the repository and facade patterns for clean architecture, this skill ensures scalable and maintainable dependency management throughout the application lifecycle.

主要功能

01Type-safe service definitions using Context and GenericTag

0272 GitHub stars

03Automatic resource management and finalizers for service cleanup

04Modular layer construction with succeed, effect, and scoped variants

05Advanced dependency composition using layer merging and pipelines

06Streamlined testing patterns through mock and in-memory layer overrides

使用场景

01Architecting large-scale TypeScript backends using clean architecture principles

02Configuring multi-environment applications with environment-specific service layers

03Decoupling business logic from infrastructure using the Repository and Facade patterns

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add thebushidocollective/han effect-dependency-injection

For use in Claude.ai and ChatGPT

Download Skill