Banking System – Full Stack App

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A simple full-stack banking system built using Spring Boot (backend) and React.js (frontend). The app exposes REST APIs for basic banking operations and uses H2 in-memory database so you can run everything locally without extra setup.

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How it's Built

The application follows a request-response cycle. When you click a button in the UI, the data travels through these layers:

graph TD
    A[User Action - UI] --> B[React Component]
    B --> C[fetch API - HTTP Request]
    C --> D[Spring Boot Controller]
    D --> E[Service Layer - Business Logic]
    E --> F[Repository - JPA]
    F --> G[(H2 In-Memory Database)]
    G --> |Response flows back| A

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Screen Shots:

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Core Functionality

• Authentication: Manual verification and session-based login.
• User Accounts: Account creation and account management features.
• Banking Operations: Deposit, withdrawal, and real-time balance updates.
• Transaction History: View a list of past transactions.
• H2 Console: Access the in-memory database during development at /h2-console.