How to implement GetUserById?

[Stockhausen-Pablo]

Hello,

first of all thank you for the very good introduction to react-redux.
I followed your tutorial but I have now run into problems implementing the UserGetById action.

I have asked a similar question on stackoverflow as well, but no one could help me with it.
https://stackoverflow.com/questions/65583662/react-redux-redux-action-getting-called-multiple-times

I would be very grateful for any assistance!