🌌 SkyBanking: Enterprise-Grade Financial Ecosystem

Secure | Scalable | Seamless

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🏛️ Project Overview

SkyBanking is a secure and scalable banking web application built using a modern Java-based backend with PostgreSQL database support. It provides digital banking features such as user registration, login, account management, deposits, withdrawals, peer-to-peer transfers, QR-based payments, PDF reports, and administrator-level monitoring.

The system focuses on clean architecture, secure transaction handling, role-based access, database consistency, and production-ready deployment.

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📊 System Architecture & Flow

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🚀 Core Features

💎 User Features

• Secure user registration and login
• OTP-based verification flow
• Account balance management
• Deposit and withdrawal support
• Peer-to-peer money transfer
• QR code-based payment system
• Transaction history tracking
• PDF account statements and invoices
• Profile and account information management

🛡️ Admin Features

• Admin login and secure dashboard
• User account monitoring
• Transaction activity overview
• OTP and security audit tracking
• Banking configuration management
• Tax, limit, and interest-related controls
• User lifecycle management

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🛠️ Tech Stack

Layer	Technology
Backend	Java 21, Servlets, JSP
Database	PostgreSQL
Build Tool	Maven
Payment Gateway	Stripe
Security	BCrypt, OTP, Session Handling
Reports	PDF Generation
Deployment	Apache Tomcat / Render
Version Control	Git & GitHub

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📁 Project Structure

src/main/java/com/skybanking/
├── model/        # Data models and entity classes
├── util/         # Utility services, validation, PDF, tax, security
├── web/          # User-side servlet controllers
└── admin/        # Admin-side servlet controllers

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🛠️ Installation & Rapid Deployment

1. Clone the Repository

git clone <your-repository-url>
cd SkyBanking

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2. Database Initialization

Create the database:

CREATE DATABASE skybank;

Import the PostgreSQL schema:

psql -U postgres -d skybank -f database/skybanking_schema_pg.sql

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3. Environment Configuration

Create a .env file in the root directory using .env.example as reference.

DB_URL=jdbc:postgresql://localhost:5432/skybank
DB_USER=postgres
DB_PASSWORD=your_secure_password

STRIPE_SECRET_KEY=sk_test_your_key_here
SMTP_PASSWORD=your_app_password

Never commit the .env file to GitHub.

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4. Build the Project

mvn clean package

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5. Deploy on Tomcat

Copy the generated WAR file:

target/BankingWebApp.war

Paste it inside the Tomcat webapps directory.

Start Tomcat:

bin/startup.bat

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🌐 Application URLs

Local Deployment

User Portal:
http://localhost:9090/BankingWebApp/

Admin Portal:
http://localhost:9090/BankingWebApp/admin/

Live Deployment

User Login:
https://skybanking.onrender.com/login

Admin Login:
https://skybanking.onrender.com/admin/login

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🗄️ Database Hosting Note

If the database is hosted on Supabase and it gets paused due to inactivity, start it manually from the Supabase dashboard:

https://supabase.com/dashboard/project/

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🔐 Security Hardening

SkyBanking follows essential security practices required for public deployment:

• Passwords stored using BCrypt hashing
• Sensitive credentials loaded from environment variables
• No hardcoded database passwords or secret keys
• Secure session-based authentication
• Input validation on critical forms
• SQL injection protection using prepared statements
• Transaction safety using ACID-compliant database operations
• Safe payment verification using Stripe integration
• Audit logs for important system activities

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🔮 Future Roadmap

• Android and iOS mobile application
• Multi-currency banking support
• AI-powered fraud detection
• Docker-based deployment
• Kubernetes scaling support
• Advanced analytics dashboard
• Email and SMS alert system

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👨‍💻 Developer

Developed with ❤️ by the SkyBanking Team