In this project, we will build a Spring Boot application to create a REST service for the 'Event Management System' application. The 'Event Management System' application is a bridge between events seeking sponsorship and potential sponsors looking for events to back. Users can navigate the platform to understand which sponsors are backing which events and the variety of events a particular sponsor might be associated with.

For this application, we will define two primary entities: Sponsor and Event. The Sponsor entity has a Many$-$to$-$Many relationship with the Event entity.Given five files,

Item controller.java

Item repository.java

ItemJpaService.java

ItemJpaRepository.java

Item.java

And also given a database file inventory table.The inventory table initially contains details of $5$items