HTTP, REST API

Question 1

Which HTTP METHODS (verbs) can be used to “send data”?

Answer 1

POST, PUT, PATCH

Question 2

Which HTTP METHOD removes a singleton resource?

Answer 2

DELETE

Question 3

Who was the originator of the REST architecture?

Answer 3

Roy Fielding

Question 4

Which HTTP METHOD is the most commonly used by REST API?

Answer 4

GET

Question 5

Which group of HTTP status codes is used for Redirection messages?

Answer 5

3XX

Question 6

Which group of HTTP status codes contains the Not Found message?

Answer 6

4XX

Question 7

According to Roy Fielding, “The key abstractions of information in REST is a representation.”

Answer 7

False. Should be “a resource”, not representation.

Question 8

Which of the 6 REST constraints ensures no client context/information is stored on the server between requests?

Answer 8

Statelessness

Question 9

REST Clients, like Postman and Insomnia make responses from REST APIs more readable.

Answer 9

True

Question 10

What does REST API stand for?

Answer 10

Representational State Transfer and Application Programming Interface

Question 11

Which of the following strings must be added to the INSTALLED_APPS variable to add Django REST framework in the Django application?

Answer 11

‘rest_framework’

Question 12

The “book_collection” view supports which HTTP requests?

Answer 12

GET, POST

Question 13

The “book_instance” view supports which HTTP requests?

Answer 13

GET, PUT, DELETE

Question 14

What new URL paths were added to the books/urls.py file to map requests to the new REST API views?

Answer 14

path(‘api/’, book_collection),

path(‘api//’, book_instance),

Question 15

Data serialization is the process of converting complex data structures into a byte stream for storage, transfer and distribution.

Answer 15

True

Question 16

What book attribute is NOT updated when the data is validated in the BookSerializer code?

Answer 16

id

Question 17

What argument is passed in to BookSerializer update function containing “cleaned” input data?

Answer 17

validated_data

Question 18

What error was returned when you issued the following HTTPie (http) command in our lab?
http GET “:8000/books/api/14/

Answer 18

HTTP/1.1 404 Not Found

Question 19

What book title was added using the HTTPie (http) command line client?

Answer 19

The Count of Monte Cristo

Question 20

What field did we update to correct an error in data entered using the HTTPie command line client?

Answer 20

year

Question 21

API endpoint:

Answer 21

a URL that returns an HTTP response in JSON format

Question 22

In Lab 9, what info did you retrieve using GET requests?

Answer 22

• Currency exchange rates/data
• TV show information for Ted Lasso, data from a specific episode
• Penguin Random House API - the davinci code

Question 23

HTTP status 5XX:

Answer 23

internal server error

Question 24

Django REST API Framework - Serializers:

Answer 24

Serialization is the process of converting complex data (e.g. python object) into native Python datatypes that can easily be rendered in JSON, XML, or other content types.

Django REST API provides a variety of Serializers, including a ModelSerializer that provide shortcuts for serializing your data.

Question 25

Django Serializers:

Answer 25

• ModelSerializer
• Serializer
• HyperlinkedModelSerializer
• ListSerializer
• BaseSerializer

Question 26

Renderers:

Answer 26

allow you to return HTTP response objects using various media types, depending on the Accept header in the request

Question 27

Parsers:

Answer 27

Parsers are used to parse the content of incoming HTTP request objects based on the Content-Type header received in the HTTP request