Bearer token authentication in Rest API - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add the Authorization header with a bearer token.

Rest API

headers = {"Authorization": "Bearer [1]"}

Drag options to blanks, or click blank then click option'

Amy_token_123

Bauth_token

C12345

Dtoken123

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to include the 'Bearer ' prefix.

Using the wrong token string.

The Authorization header must include the word 'Bearer' followed by the token. Here, 'token123' is the token value.

2fill in blank

medium

Complete the code to send a GET request with bearer token authentication using the requests library.

Rest API

response = requests.get(url, headers=[1])

Drag options to blanks, or click blank then click option'

A{"Authorization": "token123"}

B{"Authorization": "Bearer token123"}

C{"Auth": "Bearer token123"}

D{"Authorization": "Bearer"}

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Auth' instead of 'Authorization' as the header key.

Omitting the 'Bearer ' prefix in the header value.

The headers dictionary must have the key 'Authorization' with the value 'Bearer token123' to authenticate properly.

3fill in blank

hard

Fix the error in the code to correctly extract the bearer token from the Authorization header.

Rest API

token = request.headers.get('Authorization').[1](' ')[1]

Drag options to blanks, or click blank then click option'

Asplit

Bjoin

Creplace

Dstrip

Attempts:

3 left

💡 Hint

Common Mistakes

Using join instead of split.

Trying to strip or replace without splitting.

The Authorization header value is a string like 'Bearer token123'. Using split(' ') divides it into ['Bearer', 'token123'], so index 1 gives the token.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that extracts tokens from a list of Authorization headers.

Rest API

tokens = {i: header[1](' ')[[2]] for i, header in enumerate(headers)}

Drag options to blanks, or click blank then click option'

Asplit

B1

C0

Dstrip

Attempts:

3 left

💡 Hint

Common Mistakes

Using index 0 which gives 'Bearer' instead of the token.

Using strip instead of split.

Each header string is split by space, and the token is at index 1. The comprehension maps index i to the token.

5fill in blank

hard

Fill all three blanks to create a function that validates a bearer token from headers.

Rest API

def validate_token(headers):
    auth = headers.get([1])
    if auth and auth.startswith([2]):
        return auth.split([3])[1]
    return None

Drag options to blanks, or click blank then click option'

A"Authorization"

B"Bearer "

C" "

D"Token"

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Token' instead of 'Bearer ' as prefix.

Not including the space in the prefix.

Splitting by wrong character.

The function gets the 'Authorization' header, checks if it starts with 'Bearer ', then splits by space to get the token.