[Solved] You have this code snippet for pagination parameters:page = int(request.GET.get('page', 1)) limit = int(request.GET.... | Rest API

Rest API - Pagination Patterns

You have this code snippet for pagination parameters:

page = int(request.GET.get('page', 1))
limit = int(request.GET.get('limit', 10))
start = (page - 1) * limit
end = page * limit
items = data[start:end]

What is the error if page is 0?

AIt causes negative start index, returning wrong items

BIt returns the last page instead of first

CIt raises a syntax error

DIt ignores the limit parameter

Step-by-Step Solution

Solution:

Step 1: Calculate start index with page=0
start = (0 - 1) * limit = -1 * limit = negative number.
Step 2: Understand slicing with negative start
Negative start index in slicing returns items from the end, causing wrong data to be returned.
Final Answer:
It causes negative start index, returning wrong items -> Option A
Quick Check:
page=0 causes negative start index [OK]

Quick Trick: Page must be >= 1 to avoid negative start index [OK]

Common Mistakes:

MISTAKES

Assuming page=0 is valid
Expecting syntax error instead of logic error
Ignoring negative slicing effects

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More Rest API Quizzes

You have this code snippet for pagination parameters:

Step 1: Calculate start index with page=0

Step 2: Understand slicing with negative start

Final Answer:

Quick Check:

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