PostgreSQL Notification System

A complete real-time notification system using PostgreSQL LISTEN/NOTIFY with a modern service-oriented architecture, multi-tenant support, and enhanced data generation.

🏗️ Service Architecture

notify_postgres/
├── 📁 services/                    # Service-oriented architecture
│   ├── 📁 backend/                 # Multi-tenant Flask API Service
│   │   ├── unified_app.py          # Unified multi-tenant backend
│   │   ├── multi_tenant_app.py     # Multi-tenant backend
│   │   ├── app.py                  # Legacy single-tenant backend
│   │   ├── start_comp_*.sh         # Company-specific startup scripts
│   │   ├── requirements.txt        # Backend dependencies
│   │   ├── config.ini              # Service configuration
│   │   └── Dockerfile              # Container configuration
│   ├── 📁 frontend/                # React Frontend Service
│   │   ├── src/                    # React source code
│   │   │   ├── App.tsx             # Main multi-tenant app
│   │   │   ├── App.css             # Modern glass-morphism styling
│   │   │   └── App_Company*.tsx    # Company-specific components
│   │   ├── public/                 # Static files
│   │   ├── package.json            # Frontend dependencies
│   │   ├── config.ini              # Service configuration
│   │   └── Dockerfile              # Container configuration
│   ├── 📁 notification-engine/      # Notification Engine Service
│   │   ├── unified_system.py       # Unified multi-tenant system
│   │   ├── multi_tenant_system.py  # Multi-tenant notification system
│   │   ├── notification_system.py  # Core notification system
│   │   ├── config.ini              # Service configuration
│   │   └── Dockerfile              # Container configuration
│   ├── 📁 database/                # Database Service
│   │   ├── multi_tenant_schema.sql # Multi-tenant database schema
│   │   ├── multi_tenant_generator.py # Enhanced Faker-based data generator
│   │   ├── schema.sql              # Single-tenant database schema
│   │   └── config.ini              # Service configuration
│   ├── multi_tenant_manager.sh     # Multi-tenant service management
│   └── service-manager.sh          # Service management script
├── 📁 scripts/                     # Utility Scripts
├── 📁 tests/                       # Test Files
├── 📁 docs/                        # Documentation
├── 📄 docker-compose.yml           # Docker orchestration
├── 📄 Makefile                     # Easy command shortcuts
├── 📄 MULTI_TENANT_README.md       # Multi-tenant documentation
└── 📄 README.md                    # This file

🚀 Quick Start

Option 1: Multi-Tenant Setup (Recommended)

# Start multi-tenant services
make start-multi

# Generate realistic test data
make generate

# Access the unified frontend
open http://localhost:3000

Option 2: Docker Compose

# Start all services with Docker
docker-compose up -d

# View logs
docker-compose logs -f

# Stop all services
docker-compose down

Option 3: Service Manager

# Start all services
./services/service-manager.sh start all

# Start specific service
./services/service-manager.sh start backend

# Check status
./services/service-manager.sh status

# Stop all services
./services/service-manager.sh stop all

Option 4: Manual Start

# Setup database
make setup

# Start services individually
make backend
make frontend

🎯 Services

🏢 Multi-Tenant Backend Services

TechFlow Solutions: Port 5001 (Technology industry)
SocialMedia Pro: Port 5002 (Social Media Marketing)
OmniChannel Corp: Port 5003 (E-commerce)
Type: Flask API + WebSocket
Features: Multi-tenant REST API, real-time notifications, company-specific routing
Start: make start-multi or ./services/multi_tenant_manager.sh start

📱 Unified Frontend Service

Port: 3000
Type: React Web App with Multi-Tenant Support
Features:
- Modern glass-morphism UI design
- Company switching with dynamic themes
- Real-time notifications with beautiful animations
- Analytics dashboard with comprehensive metrics
- WhatsApp-like interface for engagements
Start: ./services/service-manager.sh start frontend

⚡ Unified Notification Engine

Type: Background Service
Features:
- Multi-tenant PostgreSQL LISTEN/NOTIFY processing
- Company-specific notification routing
- Real-time WebSocket event distribution
- Enhanced notification payloads
Start: ./services/service-manager.sh start engine

🗄️ Multi-Tenant Database Service

Port: 5432
Type: PostgreSQL Database with Multi-Tenant Schemas
Features:
- Separate schemas for each company
- Enhanced triggers and notification functions
- Realistic test data generation with Faker
- Comprehensive analytics tables
Start: ./services/service-manager.sh start database

📊 Service Management

Service Commands

# Start services
./services/service-manager.sh start [service]
./services/service-manager.sh start all
./services/service-manager.sh start backend
./services/service-manager.sh start frontend

# Stop services
./services/service-manager.sh stop [service]
./services/service-manager.sh stop all

# Restart services
./services/service-manager.sh restart [service]
./services/service-manager.sh restart all

# Check status
./services/service-manager.sh status

Docker Commands

# Start all services
docker-compose up -d

# Start specific service
docker-compose up -d backend

# View logs
docker-compose logs -f backend

# Stop all services
docker-compose down

# Rebuild services
docker-compose build --no-cache

🔧 Configuration

Each service has its own configuration file:

services/backend/config.ini - Backend service config
services/frontend/config.ini - Frontend service config
services/notification-engine/config.ini - Engine config
services/database/config.ini - Database config

📱 Access Points

Unified Frontend: http://localhost:3000 (Company switching interface)
TechFlow Solutions API: http://localhost:5001
SocialMedia Pro API: http://localhost:5002
OmniChannel Corp API: http://localhost:5003
Database: localhost:5432

🎉 Features

🏗️ Architecture & Infrastructure

✅ Service-oriented architecture
✅ Multi-tenant support with separate schemas
✅ Docker containerization
✅ Unified notification system
✅ Service management tools
✅ Health checks and monitoring
✅ Scalable and maintainable

🎨 User Interface & Experience

✅ Modern glass-morphism UI design
✅ WhatsApp-like React interface
✅ Company switching with dynamic themes
✅ Real-time notifications with beautiful animations
✅ Analytics dashboard with comprehensive metrics
✅ Responsive design for all devices

⚡ Real-Time & Performance

✅ Real-time PostgreSQL notifications
✅ WebSocket connections with robust error handling
✅ Multi-tenant notification routing
✅ Enhanced notification payloads
✅ No artificial API limits (shows ALL data)
✅ Optimized database queries

📊 Data & Analytics

✅ Enhanced data generation with Faker
✅ Realistic test data across multiple industries
✅ Comprehensive analytics metrics
✅ Multi-locale support (US, GB, CA, AU)
✅ Rich metadata with location, device, browser info
✅ Intelligent data distribution patterns

🎭 Data Generation & Testing

Enhanced Data Generation with Faker

# Generate realistic test data for all companies
make generate

# Generate data for specific companies
make generate-alpha    # TechFlow Solutions
make generate-beta     # SocialMedia Pro  
make generate-gamma    # OmniChannel Corp

# Generate large datasets
make generate-large

Data Generation Features

Realistic User Data: International phone numbers, emails, social media handles
Industry-Specific Content: Technology, Social Media Marketing, E-commerce
Intelligent Distribution: Recent bias, weekday patterns, status distribution
Rich Metadata: Location, device, browser, customer tier information
Multi-Locale Support: US, GB, CA, AU locales for diverse data

Testing Commands

# Test the system
make test

# Check service status
make status

# View logs
make logs

🚀 Development

Local Development

# Start multi-tenant services
make start-multi

# Generate test data
make generate

# Access unified frontend
open http://localhost:3000

Production Deployment

# Use Docker Compose
docker-compose up -d

Service Monitoring

# Check service status
./services/service-manager.sh status

# View service logs
docker-compose logs -f [service]

📚 Documentation

Multi-Tenant Setup - Detailed multi-tenant configuration
Service Architecture - Comprehensive system documentation
API Documentation - REST API endpoints and WebSocket events

Your PostgreSQL notification system now features a modern multi-tenant architecture with enhanced data generation and beautiful UI! 🚀

Name		Name	Last commit message	Last commit date
Latest commit History 12 Commits
docs		docs
services		services
tests		tests
.gitignore		.gitignore
MULTI_TENANT_README.md		MULTI_TENANT_README.md
Makefile		Makefile
README.md		README.md
docker-compose.yml		docker-compose.yml
env.template		env.template
notification_system.py		notification_system.py
requirements.txt		requirements.txt
schema.sql		schema.sql
simple_test.py		simple_test.py

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