django-dev-ninja

# Django Ninja API Development

Opinionated Django Ninja patterns with single-endpoint-per-file organization.

## Core Principles

1. **One endpoint = one file** - Each endpoint lives in its own file
2. **Logical grouping** - Endpoints grouped in subpackages by domain
3. **Router per group** - Each group has its own router
4. **Schemas in separate package** - Pydantic models in `schemas/`
5. **Services for logic** - Business logic in services, not endpoints

## API Structure

```
myapp/
├── api/
│   ├── __init__.py           # Main NinjaAPI instance
│   ├── users/
│   │   ├── __init__.py       # Router: users_router
│   │   ├── list.py           # GET /users/
│   │   ├── detail.py         # GET /users/{id}
│   │   ├── create.py         # POST /users/
│   │   ├── update.py         # PUT /users/{id}
│   │   └── delete.py         # DELETE /users/{id}
│   ├── products/
│   │   ├── __init__.py
│   │   ├── list.py
│   │   ├── detail.py
│   │   └── search.py
│   └── auth/
│       ├── __init__.py
│       ├── login.py
│       ├── logout.py
│       └── refresh.py
└── schemas/
    ├── __init__.py
    ├── user.py               # UserIn, UserOut, UserPatch
    ├── product.py
    └── common.py             # Pagination, errors
```

## Main API Setup

In `api/__init__.py`:

```python
from ninja import NinjaAPI
from ninja.security import HttpBearer

from .users import router as users_router
from .products import router as products_router
from .auth import router as auth_router


class AuthBearer(HttpBearer):
    def authenticate(self, request, token):
        # Token validation logic
        from ..services.auth import AuthService
        return AuthService.validate_token(token)


api = NinjaAPI(
    title="My API",
    version="1.0.0",
    description="API documentation",
    auth=AuthBearer(),
)

# Register routers
api.add_router("/users", users_router, tags=["Users"])
api.add_router("/products", products_router, tags=["Products"])
api.add_router("/auth", auth_router, tags=["Authe