@ulfgebhardt @mattwr18 @tirokk
Here's how I imagined the data validation middleware. If we roll our own
input validations I would suggest to put them all in one place.
@ulfgebhardt this commit is a great example of how tests can speed you
up: Since I can rely on existing tests, I don't have to check the validations
manually. With tests you can refactor with confidence! 👍
