Web services project with Spring Boot e JPA/Hibernate

A simple implementation of a backend shopping system created with Spring Boot framework and Java, using Spring Data JPA/Hibernate to interact with PostgreSQL database.

This project was deployed to Fly.io and can be accessed at this link: https://javaspring.fly.dev.

In this app, we can create, read, update or delete users (CRUD). We can also read products, orders and categories.

This project also contains: exception handling (findById, delete and update methods) and one-to-one, one-to-many and many-to-many associations.

Technologies used

• Java 17
• Spring Boot 2 (with Spring Web MVC, Spring Data JPA)
• Maven
• H2 Database
• PostgreSQL Database
• Postman
• Deploy app to Heroku and Fly.io

Domain Model

Summary of HTTP methods and description of its actions

Methods	Urls	Actions
POST	/users	create new User
GET	/users	find all Users
GET	/users/:id	find a User by :id
PUT	/users/:id	update a User by :id
DELETE	/users/:id	delete a User by :id
GET	/products	find all Products
GET	/products/:id	find a Product by :id
GET	/orders	find all Orders
GET	/orders/:id	find a Order by :id
GET	/categories	find all Categories
GET	/categories/:id	find a Category by :id

Running

The Spring profile is preconfigured for testing that uses the H2-database to save data in memory.

(To run this project using PostgreSQL database, you need to configure application-dev.properties file properly and set Spring profile to "dev" in application.properties. You can find these files in this link: https://github.com/detds/project-spring-java-17/tree/main/src/main/resources)

To run this project follow these steps:

1. Clone the repository to your workspace folder:

   $ git clone https://github.com/detds/project-spring-java-17
   

2. Navigate to the repository folder:

   $ cd project-spring-java-17
   

3. Run app:

   $ ./mvnw spring-boot:run
   

4. Open browser at http://localhost:8080/ or http://localhost:8080/h2-console to use H2-console.

Author

Dennis Teles

LinkedIn