How to set up a database for authenticate and data management

I just finished the in deph course of vaadin fusion (@marcushellberg). It was really good.

Now Im trying to do the same but now I have a Postgres database with info, but I don't know how to load the information in the grid from the database

And how to authenticate an user from database instead of hardcode the credentials... Anyone can help?

I just created my personalized entities, endpoints, repositories and the view for one of them however the view do not load the info from database, also I have the application.properties file with database info and tested

Is there something that I am missing?

Thanks in advance and if you need more info from my project just let me know.

I notice that in my browser I am getting this

Error: Endpoint 'SupermercadosEndpoint' method 'getSupermercadosData' request cannot be accessed, reason: 'Access denied'

Solution

Vaadin Fusion uses Spring Security, you can follow any Spring Security tutorials on database authentication if you want to store your credentials there. Here's one for example https://www.baeldung.com/spring-security-authentication-with-a-database

For the endpoint access, ensure you have a @PermitAll or another appropriate annotation on the Endpoint as they are deny all by default when you have security enabled https://vaadin.com/docs/latest/fusion/security/configuring/#security-options