Hello Team.
This version is with the ManytoMany mapping rule.
In my view, an invoice can have more than 1 client, and 1 client can have 1 invoice or more.
in this case, there are Store Client table, invoice and table linking the two tables (foreign key).
I tested the application via PostMan, and the return is Json.
I used the following tech in this application: Java 11 springboot JPA hibernate Mservices MySql Eclipse IDE POSTMAN
Best Regards