Authentication with GraphQL can be done in loads of different ways. I've created an example of one way that I like.
If anyone is interested, I have used my own GraphQL Server library for Python. This meant the entire implementation is less than 500 lines. You can check it out here:
https://gitlab.com/kiwi-ninja/objectql
I also have made a few other GraphQL examples which you can check out here:
https://gitlab.com/kiwi-ninja/example-projects
