🔍 API Monitor System

A production-ready, real-time API monitoring and alerting system built with FastAPI, React, Firebase, and Google Cloud.

🌟 Features

Core Monitoring

✅ Real-time API Health Checks - Monitor any HTTP/HTTPS endpoint every 5 minutes
📊 Comprehensive Metrics - Track uptime, response times (p50, p95, p99), error rates
🚨 Intelligent Alerts - AI-powered error analysis using Google Gemini
📈 Historical Data - 7-day retention with time-series analysis
🎯 Custom Configurations - Per-monitor settings for intervals, timeouts, and expected responses

Technical Features

🔐 Firebase Authentication - Secure user management
🗄️ Firestore Database - Scalable NoSQL for monitor configs
💾 SQLite Time-Series - Efficient local metrics storage
🐳 Docker Containerized - Easy deployment with Docker Compose
🔒 Production-Ready Security - HTTPS, CORS, rate limiting, security headers
🎨 Modern UI - React with Tailwind CSS and Chart.js
🤖 AI Analysis - Gemini-powered error diagnostics
📦 In-Memory Caching - 5-minute TTL for performance

🏗️ Architecture

┌─────────────────────────────────────────────────────────────────┐
│                    USERS (Web Browser)                           │
│              https://monitor.yourdomain.com                      │
└───────────────────────────┬─────────────────────────────────────┘
                            │ HTTPS (443)
                            ▼
┌─────────────────────────────────────────────────────────────────┐
│            S3 + CloudFront (Static Frontend)                     │
│                   React SPA Application                          │
└───────────────────────────┬─────────────────────────────────────┘
                            │ REST API + Firebase Auth
                            ▼
┌─────────────────────────────────────────────────────────────────┐
│                 AWS EC2 / Google Compute Engine                  │
│  ┌──────────────────────────────────────────────────────────┐  │
│  │  Nginx (Reverse Proxy)                                    │  │
│  │  • SSL/TLS Termination                                    │  │
│  │  • Rate Limiting (100 req/min)                            │  │
│  └────────────────┬─────────────────────────────────────────┘  │
│                   │ proxy_pass                                   │
│  ┌────────────────▼─────────────────────────────────────────┐  │
│  │  FastAPI Backend + APScheduler                            │  │
│  │  • REST API (8000)                                        │  │
│  │  • Background Workers                                     │  │
│  │  • SQLite Database                                        │  │
│  │  • In-Memory Cache                                        │  │
│  └──────────────────────────────────────────────────────────┘  │
└─────────────────────────────────────────────────────────────────┘
                            │
      ┌─────────────────────┼─────────────────────┐
      ▼                     ▼                     ▼
┌──────────┐          ┌──────────┐         ┌──────────┐
│ Firebase │          │  Gemini  │         │   GCP    │
│ Auth &   │          │   API    │         │ Logging  │
│ Firestore│          │    AI    │         │          │
└──────────┘          └──────────┘         └──────────┘

📁 Project Structure

api-monitor-system/
├── backend/                    # FastAPI Backend
│   ├── main.py                # Application entry point
│   ├── app/
│   │   ├── core/              # Core configurations
│   │   │   ├── config.py      # Settings & environment
│   │   │   └── firebase.py    # Firebase integration
│   │   ├── database/          # Database layer
│   │   │   └── sqlite_db.py   # SQLite operations
│   │   ├── models/            # Pydantic schemas
│   │   │   └── schemas.py     # Request/response models
│   │   ├── routers/           # API endpoints
│   │   │   ├── monitors.py    # Monitor CRUD
│   │   │   ├── metrics.py     # Metrics endpoints
│   │   │   ├── alerts.py      # Alert endpoints
│   │   │   └── auth.py        # Authentication
│   │   ├── scheduler/         # Background jobs
│   │   │   └── monitor_scheduler.py
│   │   └── services/          # Business logic
│   │       ├── monitor_checker.py
│   │       ├── gemini_service.py
│   │       └── cache_service.py
│   ├── Dockerfile
│   ├── requirements.txt
│   └── .env.example
├── frontend/                   # React Frontend
│   ├── src/
│   │   ├── components/        # React components
│   │   ├── pages/             # Page components
│   │   ├── services/          # API clients
│   │   ├── context/           # React context
│   │   ├── config/            # Configuration
│   │   └── utils/             # Utilities
│   ├── package.json
│   ├── vite.config.js
│   └── tailwind.config.js
├── infrastructure/             # Deployment configs
│   ├── docker-compose.yml
│   ├── nginx/
│   │   ├── nginx.conf
│   │   └── conf.d/
│   └── scripts/
└── docs/                       # Documentation
    ├── DEPLOYMENT_GUIDE.md    # Deployment instructions
    ├── API_REFERENCE.md       # API documentation
    └── ARCHITECTURE.md        # System architecture

🚀 Quick Start

Prerequisites

Python 3.11+
Node.js 18+
Docker & Docker Compose
Google Cloud account
Firebase project

1. Clone Repository

git clone <repository-url>
cd api-monitor-system

2. Backend Setup

cd backend

# Create virtual environment
python3 -m venv venv
source venv/bin/activate

# Install dependencies
pip install -r requirements.txt

# Configure environment
cp .env.example .env
# Edit .env with your credentials

# Place Firebase credentials
mkdir secrets
cp /path/to/firebase-credentials.json secrets/

# Run development server
python main.py

Backend will be available at http://localhost:8000

3. Frontend Setup

cd frontend

# Install dependencies
npm install

# Configure environment
cp .env.example .env
# Add Firebase configuration

# Run development server
npm run dev

Frontend will be available at http://localhost:3000

4. Docker Compose (Recommended)

cd infrastructure

# Configure environment
cp ../.env.example .env
# Edit with your credentials

# Start all services
docker-compose up -d

# View logs
docker-compose logs -f

# Stop services
docker-compose down

📊 API Endpoints

Authentication

GET /api/auth/me - Get current user
GET /api/auth/verify - Verify token

Monitors

GET /api/monitors/ - List all monitors
GET /api/monitors/{id} - Get monitor details
POST /api/monitors/ - Create monitor
PUT /api/monitors/{id} - Update monitor
DELETE /api/monitors/{id} - Delete monitor
GET /api/monitors/{id}/health-checks - Get health history
GET /api/monitors/dashboard/stats - Dashboard statistics

Metrics

GET /api/metrics/{id}?hours=24 - Get monitor metrics
GET /api/metrics/{id}/daily?days=7 - Get daily metrics

Alerts

GET /api/alerts/{monitor_id} - Get monitor alerts
GET /api/alerts/ - Get all user alerts

Health

GET /health - System health check

Full API documentation: http://localhost:8000/docs

🔧 Configuration

Environment Variables

Backend (.env)

# Firebase
FIREBASE_PROJECT_ID=your-project-id
FIREBASE_CREDENTIALS_PATH=/app/secrets/firebase-credentials.json

# Google Cloud
GCP_PROJECT_ID=your-gcp-project-id
GEMINI_API_KEY=your-gemini-api-key

# Database
SQLITE_DB_PATH=/app/database/metrics.db
DATA_RETENTION_DAYS=7

# Monitoring
MONITOR_CHECK_INTERVAL_MINUTES=5
MAX_WORKERS=10
REQUEST_TIMEOUT_SECONDS=30

# Security
ALLOWED_ORIGINS=["http://localhost:3000"]
RATE_LIMIT_PER_MINUTE=100

# Alerts
MAX_CONSECUTIVE_FAILURES=3
ALERT_COOLDOWN_MINUTES=30

Frontend (.env)

VITE_API_URL=http://localhost:8000
VITE_FIREBASE_API_KEY=your-api-key
VITE_FIREBASE_AUTH_DOMAIN=your-project.firebaseapp.com
VITE_FIREBASE_PROJECT_ID=your-project-id
VITE_FIREBASE_STORAGE_BUCKET=your-project.appspot.com
VITE_FIREBASE_MESSAGING_SENDER_ID=your-sender-id
VITE_FIREBASE_APP_ID=your-app-id

🔐 Security Features

Firebase Authentication - Industry-standard auth
HTTPS Only - TLS 1.2+ encryption
CORS Protection - Whitelist-based origins
Rate Limiting - 100 requests/minute per IP
Security Headers - XSS, clickjacking protection
Input Validation - Pydantic schemas
SQL Injection Prevention - Parameterized queries
Token Verification - Firebase ID token validation

📈 Performance

Response Time: < 100ms (API endpoints)
Monitoring Interval: 5 minutes (configurable)
Cache TTL: 5 minutes
Data Retention: 7 days (configurable)
Concurrent Checks: 10 workers
Database: SQLite (for single instance) or Cloud SQL (for scale)

🎯 Use Cases

Production API Monitoring - Monitor critical APIs
SLA Compliance - Track and report uptime
Performance Analysis - Identify slow endpoints
Incident Response - AI-powered error diagnosis
Multi-Environment - Monitor dev, staging, production
Third-Party Services - Track external dependencies

📝 Example Monitor Configuration

{
  "name": "Production API",
  "url": "https://api.example.com/health",
  "method": "GET",
  "headers": {
    "Authorization": "Bearer token123"
  },
  "interval_minutes": 5,
  "timeout_seconds": 30,
  "expected_status_code": 200,
  "alert_on_failure": true,
  "alert_threshold_minutes": 15
}

🔍 Monitoring Dashboard Features

Real-time Status - Live monitor status
Uptime Percentage - 24-hour rolling window
Response Time Charts - P50, P95, P99 percentiles
Alert History - Recent incidents
AI Analysis - Gemini-powered insights
Export Data - CSV/JSON exports

🛠️ Development

Running Tests

# Backend tests
cd backend
pytest

# Frontend tests
cd frontend
npm test

Code Quality

# Python linting
flake8 backend/
black backend/

# JavaScript linting
cd frontend
npm run lint

📚 Documentation

Deployment Guide - Complete deployment instructions
API Reference - Detailed API documentation
Architecture - System design details

🤝 Contributing

Fork the repository
Create feature branch (git checkout -b feature/amazing-feature)
Commit changes (git commit -m 'Add amazing feature')
Push to branch (git push origin feature/amazing-feature)
Open Pull Request

📄 License

This project is licensed under the MIT License.

🆘 Support

Issues: GitHub Issues
Discussions: GitHub Discussions
Email: support@yourdomain.com

🙏 Acknowledgments

FastAPI - Modern Python web framework
React - UI library
Firebase - Authentication and database
Google Cloud - Infrastructure
Gemini AI - Error analysis
Tailwind CSS - Styling framework
Chart.js - Data visualization

🔮 Future Enhancements

Built with ❤️ using FastAPI, React, Firebase, and Google Cloud

Version: 1.0.0 Last Updated: February 2024

Name		Name	Last commit message	Last commit date
Latest commit History 4 Commits
backend		backend
docs		docs
frontend		frontend
infrastructure		infrastructure
.gitignore		.gitignore
APIMonitorAnalytics_Monitors.png		APIMonitorAnalytics_Monitors.png
APIMonitorAnalytics_dashboard.png		APIMonitorAnalytics_dashboard.png
API_Monitor_mini.png		API_Monitor_mini.png
FILE_MANIFEST.md		FILE_MANIFEST.md
QUICK_REFERENCE.md		QUICK_REFERENCE.md
README.md		README.md
START_HERE.md		START_HERE.md
setup.sh		setup.sh

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🔍 API Monitor System

🌟 Features

Core Monitoring

Technical Features

🏗️ Architecture

📁 Project Structure

🚀 Quick Start

Prerequisites

1. Clone Repository

2. Backend Setup

3. Frontend Setup

4. Docker Compose (Recommended)

📊 API Endpoints

Authentication

Monitors

Metrics

Alerts

Health

🔧 Configuration

Environment Variables

Backend (.env)

Frontend (.env)

🔐 Security Features

📈 Performance

🎯 Use Cases

📝 Example Monitor Configuration

🔍 Monitoring Dashboard Features

🛠️ Development

Running Tests

Code Quality

📚 Documentation

🤝 Contributing

📄 License

🆘 Support

🙏 Acknowledgments

🔮 Future Enhancements

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