Related resource links in Rest API - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add a related resource link in the HTTP header.

Rest API

response.headers['[1]'] = '<https://api.example.com/users>; rel="users"'

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

AAuthorization

BContent-Type

CLink

DAccept

Attempts:

3 left

💡 Hint

Common Mistakes

Using Content-Type instead of Link header

Using Authorization header for links

The Link header is used to provide related resource links in REST APIs.

2fill in blank

medium

Complete the code to parse the 'Link' header and extract the URL with rel='next'.

Rest API

next_url = None
links = response.headers.get('Link', '').split(',')
for link in links:
    if 'rel=[1]' in link:
        next_url = link.split(';')[0].strip('<> ')
        break

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

A"next"

B"prev"

C"self"

D"related"

Attempts:

3 left

💡 Hint

Common Mistakes

Searching for rel="prev" instead of rel="next"

Not stripping the angle brackets from the URL

To get the next page URL, we look for rel="next" in the Link header.

3fill in blank

hard

Fix the error in the code that builds a Link header with multiple related resources.

Rest API

link_header = ', '.join([f'<{url}>; rel=[1]' for url in urls])
response.headers['Link'] = link_header

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

A"self"

B"next"

C"prev"

D"related"

Attempts:

3 left

💡 Hint

Common Mistakes

Using rel="next" when linking multiple unrelated resources

Forgetting to join links with commas

When linking multiple related resources, the rel attribute should be "related" to indicate general related links.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps resource names to their URLs from a list of tuples.

Rest API

related_links = [1]([2]: url for url, [2] in resources)

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Adict

Bname

Curl

Dlist

Attempts:

3 left

💡 Hint

Common Mistakes

Using list instead of dict

Swapping url and name variables

We use dict to create a dictionary, mapping each name to its URL.

5fill in blank

hard

Fill all three blanks to filter related links with rel='related' and extract their URLs.

Rest API

related_urls = [link.split(';')[0].strip('<>') for link in response.headers.get('[1]', '').split(',') if '[2]' in link and link.split('rel=')[1].strip('"') == [3]]

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

ALink

Brel=related

C"related"

DContent-Type

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong header name like Content-Type

Not checking the rel value correctly

The Link header contains related resource links. We filter links containing rel=related and check if the rel value equals "related".