I want to create parametric shapes in UE by using JSON data

I am completely new to UnrealEngine. First of all there is very less learning documentations and environment for beginners of UE Developers. I have some projects in which I have 3D shape information stored in JSON files.
My aim is to read JSON data and recreate shapes in UE. I want to do it through scripting. I dont want to do it by using blueprints.
Kindly share me any tutorial that can explain how can I create 3D shapes by using scripts in UE.
I need to draw cubic and curved shapes shapes.
Any kind of help will be appreciated.
Have a nice day

Is there anyone who can answer?