You could make an api for the login system in C# (Asp.net), Python (Flask), NodeJS and any other supported coding languages. If you need any help with C# (asp.net) or Python (Flask) or have any questions feel free to ask them! I'll be happy to help!
For reference, in case anyone is wondering what this is, it's a control panel that I made to interact with the OpenBullet API.
You can find it here open source https://github.com/openbullet/openbullet-adminpanel he just translated it to portuguese and compiled the latest source code.