Given a REST API with a user resource at /users/42 initially having data {"name": "Alice", "age": 30}, what will be the resource data after this PUT request?

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Rest API - HTTP Methods

Given a REST API with a user resource at /users/42 initially having data {"name": "Alice", "age": 30}, what will be the resource data after this PUT request?

PUT /users/42
{"name": "Bob"}

A{"name": "Bob"}

B{"name": "Bob", "age": 30}

C{"age": 30}

DResource deleted

Step-by-Step Solution

Solution:

Step 1: Understand PUT replaces entire resource
The PUT request replaces the whole resource data with the new JSON body, removing any fields not included.
Step 2: Apply replacement to given data
Original data had name and age, but PUT body only has name "Bob", so age is removed.
Final Answer:
{"name": "Bob"} -> Option A
Quick Check:
PUT replaces all fields, missing fields removed [OK]

Quick Trick: PUT replaces all fields; missing fields are removed [OK]

Common Mistakes:

MISTAKES

Assuming PUT merges fields like PATCH
Expecting old fields to remain if not sent
Thinking PUT deletes resource

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More Rest API Quizzes

Given a REST API with a user resource at /users/42 initially having data {"name": "Alice", "age": 30}, what will be the resource data after this PUT request?

Step 1: Understand PUT replaces entire resource

Step 2: Apply replacement to given data

Final Answer:

Quick Check:

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