Comment out code because going to try simpler approach first.
Add instructive comments.
Remove unused code comments.
Add instructive comment.
Remove whitespace.
Change 'user' to 'users' because plural.
Remove whitespace.
Update route for renamed 'users'.
Create function for checking if user exists by name.
Clean up function for checking if user exists by ID.
Create user_exists function to replace two others.
Simplify 'user exists' checking.
Make get_user function more general.
Update function call as per last commit.
Clean up user_exists function.
Give function more general name.
Rename functions for consistency.
Improve comments.
Rename function to something more general.
Modify function to be more general.