# Encore Service

> Implement Encore.ts services and lay out an application using `encore.service.ts`, service directories, systems, and `~encore/clients`. For service boundaries and architecture decisions, use `encore-architecture`.

- Skill: `encoredev/encore-service` (Agent Skill)
- Install (CLI): `npx skillmds@latest add encoredev/encore-service`
- Raw SKILL.md: https://api.skillmd.com/api/skills/encoredev/encore-service/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: encoredev (https://skillmd.com/u/encoredev)
- Updated: 2026-09-10
- Page: https://skillmd.com/skills/encoredev/encore-service

---


# Encore Service Structure

## Instructions

### Creating a Service

Every Encore service needs an `encore.service.ts` file:

```typescript
// encore.service.ts
import { Service } from "encore.dev/service";

export default new Service("my-service");
```

### Minimal Service Structure

```
my-service/
├── encore.service.ts    # Service definition (required)
├── api.ts               # API endpoints
└── db.ts                # Database (if needed)
```

## Application Patterns

### Single Service

A service can be defined at the application root:

```
my-app/
├── package.json
├── encore.app
├── encore.service.ts
├── api.ts
├── db.ts
└── migrations/
    └── 001_initial.up.sql
```

### Multi-Service

Each service lives in its own directory:

```
my-app/
├── encore.app
├── package.json
├── user/
│   ├── encore.service.ts
│   ├── api.ts
│   └── db.ts
├── order/
│   ├── encore.service.ts
│   ├── api.ts
│   └── db.ts
└── notification/
    ├── encore.service.ts
    └── api.ts
```

### Large Application (System-based)

Group related services into systems:

```
my-app/
├── encore.app
├── commerce/
│   ├── order/
│   │   └── encore.service.ts
│   ├── cart/
│   │   └── encore.service.ts
│   └── payment/
│       └── encore.service.ts
├── identity/
│   ├── user/
│   │   └── encore.service.ts
│   └── auth/
│       └── encore.service.ts
└── comms/
    ├── email/
    │   └── encore.service.ts
    └── push/
        └── encore.service.ts
```

## Service-to-Service Calls

Import other services from `~encore/clients`:

```typescript
import { user } from "~encore/clients";

export const getOrderWithUser = api(
  { method: "GET", path: "/orders/:id", expose: true },
  async ({ id }): Promise<OrderWithUser> => {
    const order = await getOrder(id);
    const orderUser = await user.get({ id: order.userId });
    return { ...order, user: orderUser };
  }
);
```

## Guidelines

- Services cannot be nested within other services
- Use `~encore/clients` for cross-service calls (never direct imports)
- Each service can have its own database
- Service names should be lowercase, descriptive
- Don't create services just for code organization - use folders instead
- Use `encore-architecture` when the service boundaries have not been decided