What types of communication with the "outside world" possible in blueprints?

What types of communication with the “outside world” possible in blueprints?

(without third-party plugins or writing C++ code)

For example - maybe reading (or writing) in runtime(!) a specific csv or text-file from the web, or from the file system? :rolleyes: Maybe SQL? Maybe something else (even if it’s something small or insignificant)?

I’m asking because I want to try blueprints and unreal as a platfrom for app development (don’t tell me not to do it, I’ll do it anyway :D).

I had to use Rama’s Victory Plugin (in ue4 forums) to be able to write txt files. Used HTTP Blueprint WebCommunication plugin (on marketplace) to do what name suggests.