FastAPI Route

A file-based routing system for FastAPI — build APIs with the simplicity of files and folders, not decorators.

Full Documentation — Complete API reference, advanced guides, and examples

Why FastAPI Route?

Stop writing decorators. Start organizing your API with files and folders. Just drop Python files in directories — each file becomes an endpoint, each directory becomes a route segment. Dynamic parameters? Use [param] directories. Route groups? Use (group) directories. It's that simple.

Features

• File-Based Routing: Routes defined by directory structure — no decorators needed
• Dynamic Routes: [user_id] directories automatically become {user_id} parameters
• Cache-All Routes: [...slug] captures unlimited path segments
• Route Groups: (auth) directories organize code without affecting URLs
• Hot Reload: Instant rebuild on file changes during development
• Production Build Cache: Pre-compiled routes for lightning-fast startup
• Beautiful Error Pages: Syntax highlighting, line numbers, and helpful suggestions
• Custom Handlers: Bring your own docs.py and not-found.py
• Custom Middleware: Intercept requests with middleware.py
• Static File Serving: Drop files in /public — served automatically
• Built-in Documentation: Auto-generated API docs at /docs
• CLI Tools: init, build, run, dev, clean, status commands
• Zero Config: Works out of the box — but fully customizable when you need it
• Type Hints: Full typing support for excellent IDE autocompletion

Installation

pip install fastapi-route

With development dependencies:

pip install fastapi-route[dev]

Quick Start

1. Initialize a new project

fastapi-route init

2. Create your first route

# routes/index.py
from fastapi_route import Request

def GET(request: Request):
    return {"message": "Hello World!"}

def POST(request: Request):
    data = await request.json()
    return {"received": data}

3. Add a dynamic route

# routes/users/[user_id]/route.py
from fastapi_route import Request

def GET(request: Request, user_id: int):
    return {"user_id": user_id, "name": f"User {user_id}"}

4. Run your API

# Development mode (with hot reload)
fastapi-route dev

# Production mode (requires build first)
fastapi-route build
fastapi-route run

Visit http://localhost:8000/docs for auto-generated documentation.

How It Works

routes/
├── index.py                    → GET /, POST /
├── about/
│   └── route.py                → GET /about
├── users/
│   ├── route.py                → GET /users, POST /users
│   ├── [user_id]/
│   │   └── route.py            → GET /users/{user_id}, PUT /users/{user_id}
│   └── [user_id]/posts/
│       └── route.py            → GET /users/{user_id}/posts
├── docs/
│   └── [...slug]/
│       └── route.py            → GET /docs/*
└── (auth)/                     # Route group (ignored in URL)
    └── profile/
        └── route.py            → GET /profile

CLI Commands

Command	Description
fastapi-route init	Create a new project with default structure
fastapi-route build	Compile routes into production cache
fastapi-route run	Start production server (requires build)
fastapi-route dev	Start development server with hot reload
fastapi-route clean	Remove build cache
fastapi-route status	Show build cache information

Customization

Configuration (config.py)

app_name = "My API"
debug = False
cors_enabled = True
cors_origins = ["https://example.com"]

server = {
    "host": "0.0.0.0",
    "port": 8080,
    "workers": 4
}

logging = {
    "level": "INFO",
    "format": "[%Y-%m-%d %H:%M:%S]",
    "color": True
}

commands = {
    "deploy": "fastapi-route build && rsync -avz .cache/ deploy/"
}

Custom Middleware (middleware.py)

from fastapi_route import Request

async def middleware(request: Request, call_next):
    # Log every request
    print(f"{request.method} {request.path}")

    # Continue to the route handler
    response = await call_next(request)

    # Add custom header
    response.headers["X-Powered-By"] = "FastAPI Route"

    return response

Custom 404 Page (not-found.py)

from fastapi_route import Request, HTMLResponse

def handler(request: Request, context):
    routes = context.get_routes()

    return HTMLResponse(content=f"""
    <!DOCTYPE html>
    <html>
    <head><title>404 - Not Found</title></head>
    <body>
        <h1>404 - Page Not Found</h1>
        <p>{request.path} does not exist</p>
        <p>Total routes: {len(routes)}</p>
        <a href="/">Go Home</a>
    </body>
    </html>
    """, status_code=404)

Documentation

For complete documentation, API reference, and advanced usage examples, visit:

https://inject3r.github.io/fastapi-route

The documentation includes:

• Detailed API reference for all modules and classes
• Advanced routing patterns and best practices
• Configuration options and their effects
• Error handling strategies
• Migration guides from traditional FastAPI
• Production deployment guides

Repository

Source code and issue tracking:

https://github.com/inject3r/fastapi-route

Requirements

• Python 3.9+
• FastAPI 0.100.0+
• Uvicorn 0.23.0+

Running Tests

# Run all tests with coverage
./scripts/test.sh

# Clean test output files
./scripts/test_clean.sh

Project Structure

your-project/
├── routes/                 # Your API routes (file-based)
│   ├── index.py
│   └── ...
├── public/                 # Static files (served at /)
│   ├── css/
│   ├── js/
│   └── images/
├── config.py               # Application configuration
├── middleware.py           # Custom middleware (optional)
├── docs.py                 # Custom documentation (optional)
├── not-found.py            # Custom 404 page (optional)
└── .cache/                 # Build cache (auto-generated)

Why No Decorators?

FastAPI Route was built for developers who think in terms of files and directories, not decorators and route registrations. Just create files — they become endpoints. Create directories — they become route segments. Use [param] for dynamic parameters. Use (group) for organization.

No decorators. No route registration. Just files.

License

This project is licensed under the MIT License.

Author

Abolfazl Hosseini

• Email: tryuzr@gmail.com
• GitHub: @inject3r

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

Acknowledgments

• FastAPI - The amazing web framework
• All contributors and users of this project