JSON Client / Server Communication

Hello Guys,

I’m new at this Forum and at Unreal Engine + Blueprint Visual Scripting. But I got some Skillz in C++, php, js, python.

So I tried to make an JSON + Node Loginserver for my Unreal Engine 4 MMO Game with help of stefanders json plugin.
The only Problem I got is to add other players to my Game if they’re loggedin (showed in Node + MYSQL) and stored clientside in Player Controller (player index).

Can you help me?
My Idea was to use create session but I don’t know how to handle it later for others :smiley:

Maybe it’s not the right approach to do it all over JSON…