Idea what to use to connect to external API

I need idea what to use to communicate with following API:

http://developers.xstore.pro/documentation#communication-with-the-xstation-api

I am not able to get it working with any of the know lua methods. 

I was testing native socket.connect and network.request() Corona SDK functions

and trying to use/run external librarys such as:

https://github.com/jack9/pusherhub

https://github.com/Overtorment/NoobHub

https://github.com/lipp/lua-websockets

Still I have no success. Any idea which path should I go to use this API from Corona?

I am new to Corona so please forgive if the answer is straightforward.