fastapi-monitor 0.1.1

A lightweight monitoring middleware for FastAPI applications with real-time dashboard

FastAPI Monitor

A lightweight monitoring middleware for FastAPI applications with real-time dashboard and comprehensive metrics collection.

✨ Features

• 🚀 Zero-configuration setup - Add monitoring in 3 lines of code
• 📊 Real-time dashboard with auto-refresh capabilities
• 💾 SQLite storage - No external dependencies required
• 📈 Comprehensive metrics - Request/response times, status codes, error tracking
• 🔒 Security-first - SQL injection proof with parameterized queries
• 📱 Responsive UI - Works seamlessly on desktop and mobile
• ⚡ High performance - Minimal overhead on your API

🚀 Quick Start

Installation

pip install fastapi-monitor

Basic Usage

from fastapi import FastAPI
from fastapi_monitor import MonitorMiddleware, create_dashboard_app

app = FastAPI()

# Add monitoring middleware
app.add_middleware(MonitorMiddleware, db_path="monitor.db")

# Your API routes
@app.get("/")
async def root():
    return {"message": "Hello World"}

# Mount the monitoring dashboard
dashboard_app = create_dashboard_app("monitor.db")
app.mount("/monitor", dashboard_app)

That's it! Visit http://localhost:8000/monitor to see your API metrics.

📊 Dashboard Features

• Real-time statistics - Total requests, average response time, error rates
• Request timeline - Visual representation of API traffic over time
• Status code distribution - HTTP status code breakdown with color coding
• Error tracking - Detailed error logs with stack traces
• Request details - Full request/response inspection
• Performance metrics - Response time analysis and trends

⚙️ Configuration

Advanced Middleware Setup

app.add_middleware(
    MonitorMiddleware,
    db_path="custom_monitor.db",
    exclude_paths=["/health", "/metrics", "/docs"]
)

Dashboard with Basic Authentication

# Protected dashboard
dashboard_app = create_dashboard_app(
    db_path="monitor.db",
    username="admin",
    password="your-secure-password"
)
app.mount("/monitor", dashboard_app)

Custom Dashboard Mount

# Without authentication
dashboard_app = create_dashboard_app("custom_monitor.db")
app.mount("/admin/monitoring", dashboard_app)

📈 Metrics Collected

Metric	Description
Request Time	Timestamp of each request
Response Time	Processing time in milliseconds
HTTP Method	GET, POST, PUT, DELETE, etc.
Request Path	API endpoint accessed
Status Code	HTTP response status
Request Size	Size of request body in bytes
Response Size	Size of response body in bytes
Client IP	Source IP address
User Agent	Client browser/application info
Error Details	Stack traces for failed requests

🛠️ Development

Setup Development Environment

git clone https://github.com/yourusername/fastapi-monitor.git
cd fastapi-monitor
pip install -e ".[dev]"

Running Tests

pytest

Code Formatting

black .
isort .

📝 Example Application

Check out the complete example in the examples/ directory:

cd examples
python example_app.py

Then visit:

• API: http://localhost:8000
• Dashboard: http://localhost:8000/monitor

🤝 Contributing

We welcome contributions! Please see our Contributing Guidelines for details.

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

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🙏 Acknowledgments

• Built with FastAPI
• UI powered by HTMX
• Database operations with aiosqlite

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