Workie - Employee Management System Development

Mohit Ranjan

Completed work

Project Manager

Git

Java

Spring Boot

Computer Software

Workie - Simple Employee Management System (Java Spring Boot)

Overview

Workie is a robust Spring Boot application, written in Java, designed to streamline employee data management. This application provides a comprehensive set of RESTful API endpoints for performing CRUD (Create, Read, Update, Delete) operations on employee records. It leverages Spring Data JPA for efficient data persistence and utilizes an in-memory H2 database for development and testing purposes. This system is ideal for small to medium-sized organizations looking for a lightweight and easily deployable employee management solution built with Java and Spring Boot.

Features

Create Employee: Add new employee records, including name, department, and salary, with validation to ensure data integrity.

Read Employee: Retrieve detailed information for a specific employee by ID or fetch a comprehensive list of all employees.

Update Employee: Modify existing employee records, allowing for updates to name, department, and salary.

Delete Employee: Remove employee records from the system, ensuring data consistency and security.

RESTful API: Exposes a well-documented and easy-to-use RESTful API for seamless integration with other systems.

Data Validation: Implements robust data validation to ensure the integrity and accuracy of employee records.

In-Memory Database (H2): Utilizes an in-memory H2 database for development and testing, simplifying setup and deployment.

Spring Data JPA: Leverages Spring Data JPA for efficient and simplified data access and persistence.

Comprehensive Testing: Includes unit and integration tests (written in Java) to ensure the reliability and stability of the application.

Technologies Used

Java 11+: The primary programming language used for development.

Spring Boot 3.x: A rapid application development framework (written in Java) for building standalone, production-grade Spring-based applications.

Spring Data JPA: Simplifies data access and persistence with JPA repositories (Java based).

H2 Database: An in-memory database used for development and testing.

Maven: A powerful build automation and dependency management tool.

JUnit & Mockito: Frameworks for unit and integration testing (Java based).

Lombok: Reduces boilerplate code by automatically generating getters, setters, and other common methods (Java library).

Jackson: Used for JSON serialization and deserialization (Java library).

Getting Started

Prerequisites

Before you begin, ensure you have the following software installed:

Java Development Kit (JDK) 11 or later: Download and install from Oracle or OpenJDK.

Maven: Download and install from Apache Maven.

Git: Download and install from Git.

An Integrated Development Environment (IDE): Recommended IDEs include IntelliJ IDEA, Eclipse, or Visual Studio Code with Java extensions.

Installation

Clone the Repository:

git clone [https://github.com/yourusername/workie.git](https://www.google.com/search?q=https://github.com/yourusername/workie.git)
cd workie

Build the Project:

mvn clean install

Run the Application:

mvn spring-boot:run

The application will start on http://localhost:8080.

API Endpoints

GET /api/employees: Retrieves a list of all employees.

GET /api/employees/{id}: Retrieves an employee by their ID.

POST /api/employees: Creates a new employee.

PUT /api/employees/{id}: Updates an existing employee.

DELETE /api/employees/{id}: Deletes an employee by their ID.

Example Requests

Create Employee:

curl -X POST http://localhost:8080/api/employees \
-H "Content-Type: application/json" \
-d '{
  "name": "Xing Ping",
  "department": "President",
  "salary": 200000
}'

Get All Employees:

curl -X GET http://localhost:8080/api/employees

Get Employee by ID:

curl -X GET http://localhost:8080/api/employees/1

Update Employee:

curl -X PUT http://localhost:8080/api/employees/1 \
-H "Content-Type: application/json" \
-d '{
  "name": "Donald Trump",
  "department": "CEO",
  "salary": 700000
}'

Delete Employee:

curl -X DELETE http://localhost:8080/api/employees/1

Testing:

mvn test

API Endpoints

The application exposes the following RESTful API endpoints:

GET /api/employees: Retrieve a list of all employees.

GET /api/employees/{id}: Retrieve a specific employee by ID.

POST /api/employees: Create a new employee.

PUT /api/employees/{id}: Update an existing employee by ID.

DELETE /api/employees/{id}: Delete an employee by ID.

Possible Future Enhancements

Implementing user authentication and authorization.

Adding support for a persistent database (e.g., PostgreSQL, MySQL).

Implementing search and filtering capabilities.

Integrating with a frontend framework (e.g., React, Angular) for a user-friendly interface.

Adding logging and monitoring capabilities.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

Spring Boot for the framework.

H2 Database for the in-memory database.

Maven for dependency management.

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Completed work

Posted Jul 5, 2025

Developed Workie, a Java Spring Boot employee management system with RESTful APIs.

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Timeline

Feb 11, 2025 - Apr 27, 2025