Multi-Database Spring Boot Application

a Spring Boot application that connect to multiple PostgreSQL databases using JPA

The application manages Product, Provider, and ProductDetail entities across two different databases

Technologies Used

• Spring Boot 3.4.1
• Spring Data JPA
• PostgreSQL
• Gradle
• JDK 21

Overview

The application is structured to interact with two PostgreSQL databases:

• Database A: Contains the Product entity.
• Database B: Contains the Provider and ProductDetail entities, which have relationships with the Product entity in Database A.