Get SQL values with blueprints

Hello,

Me and some friends have a school project on UE4
We would like to do a small game with database in,teraction (like clash of clan)
So we use mariaDB to store value in database.
We would like to be able to get them in the unreal.
For the moment we are using a PHP serveur that return the good value with the params given by $_GET
To do so, we use Varest plugin, but as we move on, we have the same and same bluprint coming out
like this :

I have think about functions, but as they cannot have custom events, and we need to return the data, so not working …

He have C++ running maybe, if we can avoid C++ it would be great, but if we had no other solutions …

Can you help us to find a solution, or an alternative ?

Thanks