The Spring Boot Chat API is a Java project that combines API documentation and Repositories, built with Postman. The project follows a clean, modular architecture where input handling, business logic, and presentation stay separated, making it easy to test, extend, and present. It showcases practical Java techniques while producing a working, demo-ready application.
Manual and paper based methods for this task are slow, error-prone, and hard to manage. Without a Java application built on Repositories and Postman, users cannot process, store, and manage data efficiently, and there is no reliable, reusable way to run the workflow.
This project applies Java techniques through API documentation, orchestrated with Postman and Repositories. The application is designed for correctness and usability, with clean data flow, validation, and error handling. It produces consistent, reusable results and can be adapted to related tasks with minimal changes.
Postman
Spring Boot
Java 17+
Maven / Gradle
Object oriented design
Testing and debugging
Spring Data JPA
Modular Java application around API documentation and Repositories
Configurable settings and validation rules
Clear logging, error handling, and reporting
Clean interface for user interaction
Reusable components for related features
Unit testing and maintainable code
The project is layered: the input layer handles user interaction through API documentation; the logic layer implements business rules with Postman and Repositories; and the output layer presents results via DTOs. Shared validation, storage, and logging modules support all layers, keeping the application robust and easy to extend.
Set up the Java project, dependencies, and environment.
Build the input and model layer with API documentation.
Implement the core business logic using Postman and Repositories.
Add the output and presentation layer via DTOs.
Wire up end-to-end flows with validation and error handling.
Write tests, run the application, and refine features.
Package the project, document it, and prepare the demo and viva report.
Build production-style Java applications
Apply Spring Data JPA and DTO and validation
Design classes and manage data in Java
Work with Java frameworks and libraries
Present and defend a complete Java project in viva
Expose the application as a REST API
Add a database for persistent storage
Add a modern GUI or web interface
Deploy to a cloud platform
The Spring Boot Chat API delivers a complete Java workflow — from input handling and business logic to output and presentation. It is practical, modern, and easy to explain, making it an excellent final year project that demonstrates in-demand Java skills.
