Week 9: RESTful Web Services

Question 1

What is REST?

Answer 1

Representational State Transfer is an Architectural principle of the WWW (sometething that conforms to this is RESTful)

Question 2

What information does the client not need to know to use REST?

Answer 2

Info about:

• the server
• it’s resources

Question 3

What are the features of REST?

Answer 3

Resources:
1. Identified by a URI (persistent Identifier)
2.Manipulated using CRUD (Create, Read, Update,
Delete ) else (POST, GET, PUT, DELETE)
3.Retrieved as HTML, XML or JSON
4. Maintain their state
5. Are linked
6. Describe usage, discarding/refetching circumstances
(HTTP Cache-Control headers)

Question 4

How is the representation retrieved set?

Answer 4

It’s defined by the accept header in the request

Question 5

Why is HATEOAS used?

Answer 5

To provide responsces that are SELF DESCRIPTIVE and LINK TO OTHER RESOURCES

Question 6

What does HATEOAS stand for?

Answer 6

Hypermedia As The Engine Of Application State