Answers.txt

What is a RESTful interface? When do you use it? What are its characteristics?


What is the difference between POST and PUT?
Put updates info, while POST adds new info.


How does the record ID work in Firebase? 


Why does it take two steps to save a record (first POST then PUT) in our app? 

Why does the FirebaseItem protocol even exist?


Explain what a generic type is and what advantages it offers.

What does a URLRequest do? 

When do you need one and when can you just use a URL?

What is the role of a URL session? How does it work?

What are completion handlers? Why use completion handlers? What advantages do they provide?

Explain at least three strategies that promote code reuse that we used in today's project