First, you need VaRest plugin and use SteamWebAPI.
WEB API list:
https://partner.steamgames.com/doc/webapi
You need “GetPlayerBans” in “ISteamUser”
and in blueprint:
Call URL {Url : api.steampowered.com/ISteamUser/GetPlayerBans/v1/?key=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&steamids=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx, Verb: GET, Content-Type: x-www-form-urlencoded (URL), Construct Json Object —> Va Rest Json}
And add callback event
Tutorial Video (for plugin):
