create-service
About
This skill directs developers to the correct service-creation template based on service type. Use it when asked to create a backend service layer component. It routes requests to either `create-resource-service` for domain entity CRUD or `create-utility-service` for cross-cutting concerns.
Quick Install
Claude Code
Recommended/plugin add https://github.com/majiayu000/claude-skill-registrygit clone https://github.com/majiayu000/claude-skill-registry.git ~/.claude/skills/create-serviceCopy and paste this command in Claude Code to install this skill
Documentation
Create Service
Services contain business logic and orchestrate operations between repositories, external APIs, and other services.
Service Types
There are two types of services in this architecture:
| Type | Purpose | Skill |
|---|---|---|
| Resource Service | CRUD operations on entities (notes, users, etc.) | create-resource-service |
| Utility Service | Cross-cutting concerns (auth, notifications, email) | create-utility-service |
Which Skill to Use?
Use create-resource-service when:
- Creating a service for a domain entity (Note, User, Course, etc.)
- The service will perform CRUD operations via a repository
- The service needs authorization checks per operation
- The service should emit events for real-time updates
- You've already created the schema and repository for this entity
Example: NoteService, UserService, CourseService
Use create-utility-service when:
- Creating a service for cross-cutting concerns
- The service calls external APIs (auth service, payment gateway, etc.)
- The service provides shared functionality used by other services
- The service doesn't directly map to a domain entity
Example: AuthenticationService, AuthorizationService, EmailService, NotificationService
Service Layer Principles
Regardless of type, all services follow these principles:
- Business logic lives here - Not in controllers or repositories
- Dependency injection - Inject dependencies via constructor
- Throw domain errors - Use errors from
@/errors(not HTTP errors) - User context - Accept
AuthenticatedUserContextTypewhere needed - Return domain types - Return schema types, not HTTP responses
File Naming
Location: src/services/{service-name}.service.ts
| Type | Example |
|---|---|
| Resource | note.service.ts, user.service.ts |
| Utility | authentication.service.ts, authorization.service.ts |
See Also
create-resource-service- CRUD services for entitiescreate-utility-service- Cross-cutting/specialized servicesadd-resource-events- Add real-time events to a resource service
GitHub Repository
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