Why pagination manages large datasets in Rest API - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the number of items per page in a paginated API response.

Rest API

page_size = [1]

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

A100

Ball

C50

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Setting page_size to 'all' returns everything and defeats pagination.

Setting page_size to 100 limits the number of items returned per page, helping manage large datasets efficiently.

2fill in blank

medium

Complete the code to get the current page number from the request parameters.

Rest API

current_page = int(request.args.get('[1]', 1))

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Alimit

Bpage

Coffset

Dsize

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'limit' or 'offset' instead of 'page' for page number.

The parameter page is commonly used to specify the current page number in pagination.

3fill in blank

hard

Fix the error in the code that calculates the starting index for the current page.

Rest API

start_index = (current_page [1] 1) * page_size

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A+

B/

C*

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+' causes the start index to skip the first page.

We subtract 1 from current_page before multiplying by page_size to get the correct zero-based start index.

4fill in blank

hard

Fill both blanks to slice the dataset correctly for the current page.

Rest API

page_data = dataset[[1]:[2]]

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Astart_index

Bend_index

Cpage_size

Dcurrent_page

Attempts:

3 left

💡 Hint

Common Mistakes

Using page_size or current_page directly as slice indices.

Slicing from start_index to end_index extracts the correct items for the current page.

5fill in blank

hard

Fill all three blanks to calculate the end index for pagination correctly.

Rest API

end_index = [1] + [2]
if end_index > [3]:
    end_index = [3]

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

Astart_index

Bpage_size

Ctotal_items

Dcurrent_page

Attempts:

3 left

💡 Hint

Common Mistakes

Not limiting end index to total items causes errors.

The end index is the start index plus page size, but it cannot exceed the total number of items.