CRUD Operations you own this product

basic Java • basic SQL • basic JSON • Spring Data JPA CRUD Repositories • basic HTTP • basic REST
skills learned
RESTful API implementation with Spring Web and DTO pattern, Generate a SwaggerUI and OpenApi documentation with SpringDoc
Potito Coluccelli
1 week · 6-8 hours per week · BEGINNER

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BestInsurance has an online portal with a newly built application for providing features it hopes will attract new customers. As a backend developer for the insurance company, it’s your job to implement create, read, update, and delete (CRUD) services that allow front-office staff to manage and query data as needed to perform their daily tasks. You’ll define your CRUD API, using Spring Web and the DTO pattern, and observe your components in action. Leveraging inheritance and generic types in Java, you’ll refactor the code as necessary and complete the implementation of your RESTful APIs. To ensure your solution meets BestInsurance’s high standards, you’ll test the services with Spring Test and MockMvc.

This project is designed for learning purposes and is not a complete, production-ready application or solution.

project author

Potito Coluccelli

Potito Coluccelli is a senior software engineer and team leader at Econocom in Italy, where he works on service-oriented architecture design and implementation as well as supporting customers as they transition from monolithic to microservice architectures. Previously he worked as a middleware consultant at Red Hat and supported companies in Italy and the EU with JEE application design, development, maintenance, and testing. With his team, he created a trade surveillance tool for Commodity Markets that’s been adopted by major energy providers in Italy.


This liveProject is for Java beginners interested in learning how to design and implement RESTful CRUD services. To begin these liveProjects you’ll need to be familiar with the following:

  • Basic Java
  • Basic SQL
  • Basic JSON
  • Spring Boot 3.1.x stable version
  • Your favorite IDE
  • Basic use of the command line (or equivalent best tools for the operating system you’re using)
  • Basic knowledge of the REST paradigm and HTTP
  • Implement Spring Data JPA CRUD Repository


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