ATM System — Spring Boot + Java + HTML/CSS/JS

A complete ATM simulation system built using Spring Boot, Java, and a simple HTML/CSS/JS frontend.
This project supports card insertion, PIN authentication, checking balance, deposit, withdrawal, transaction history, and logout.

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🚀 Features

✔ Authentication

• Card insertion simulation
• PIN validation
• Generates session token
• Logout endpoint

✔ Banking Operations

• Check balance
• Deposit money
• Withdraw with validation
• View transaction history

✔ Clean UI

• Fully implemented in HTML/CSS/JavaScript
• Calls backend through REST APIs
• Smooth action panels (Deposit/Withdraw/History)

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🛠️ Tech Stack

Backend

• Java 17+
• Spring Boot
• Maven
• REST Controllers

Frontend

• HTML
• CSS
• JavaScript (Fetch API)

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📁 Project Structure

src/ └── main/ ├── java/com/example/atm │ ├── AtmApplication.java │ ├── controller/ │ ├── service/ │ ├── model/ │ └── repository/ └── resources/ ├── static/ │ ├── index.html │ ├── script.js │ └── style.css └── application.properties

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🔥 API Endpoints

Auth

Method	Endpoint	Description
POST	/api/auth/login	Login using cardNumber + PIN
POST	/api/auth/logout	Logout

Account

Method	Endpoint	Description
GET	/api/account/balance	Get account balance
POST	/api/account/deposit	Deposit money
POST	/api/account/withdraw	Withdraw money
GET	/api/account/transactions	Get transaction list

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▶️ How to Run

Method 1: Using IntelliJ

1. Open project folder
2. Let Maven import dependencies
3. Run AtmApplication.java

Method 2: Using Terminal

mvn spring-boot:run Backend will start on: http://localhost:8080

Frontend is automatically served from:
src/main/resources/static/index.html

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📄 License

This project is licensed under the MIT License (see LICENSE file).

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⭐ Support

If you like this project, consider giving it a ⭐ star on GitHub!