BIABank is a full-stack banking simulation system designed to demonstrate modern web development practices. The application features secure user authentication, real-time notifications, comprehensive transaction management, and a dedicated admin portal for system oversight.
Main dashboard view showing account overview and recent transactions
Dashboard
Secure authentication interface with JWT login
Login Page
Administrative dashboard for user and system management
Admin Portal
Transaction history and transfer interface
Transactions
25+
API Endpoints
12
Database Tables
85%
Test Coverage
<100ms
Response Time
Implemented secure JSON Web Token authentication with refresh token rotation, ensuring session security and seamless user experience.
Built real-time notification system using SignalR, allowing instant updates for transactions, account changes, and system alerts.
Created comprehensive admin dashboard for user management, transaction monitoring, and system configuration.
Developed secure transaction processing with validation, logging, and rollback capabilities for deposits, withdrawals, and transfers.
Designed and implemented RESTful API endpoints following best practices for resource naming, HTTP methods, and response codes.
Architected normalized SQL Server database with Entity Framework Core for efficient data access and migrations.
Handling concurrent transactions without data inconsistency
Implemented optimistic concurrency with row versioning and transaction isolation levels in SQL Server
Securing API endpoints while maintaining performance
Used JWT with short expiry times and refresh tokens, caching validated tokens to reduce overhead
Real-time updates across multiple connected clients
Leveraged SignalR groups to broadcast updates only to relevant users, reducing server load
Deepened understanding of ASP.NET Core middleware and dependency injection
Learned best practices for securing financial applications
Gained experience with real-time communication using WebSockets
Improved database design and query optimization skills
Add two-factor authentication (2FA)
Implement transaction analytics dashboard
Add support for multiple currencies
Build mobile companion app
Integrate with external payment gateways
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