A PATCH request updates a nested resource field, such as address.city. Which JSON body correctly updates only the city without affecting other address fields?

hard📝 Application Q9 of 15

Rest API - HTTP Methods

A PATCH request updates a nested resource field, such as address.city. Which JSON body correctly updates only the city without affecting other address fields?

A{"address": {"city": "Newtown"}}

B{"city": "Newtown"}

C{"address.city": "Newtown"}

D{"address": "Newtown"}

Step-by-Step Solution

Solution:

Step 1: Understand nested JSON structure
To update a nested field, the JSON must include the parent object with the updated child field.
Step 2: Evaluate options
{"address": {"city": "Newtown"}} correctly nests city inside address; others either flatten or overwrite incorrectly.
Final Answer:
{"address": {"city": "Newtown"}} -> Option A
Quick Check:
Nested update requires nested JSON object [OK]

Quick Trick: Use nested objects to update nested fields [OK]

Common Mistakes:

MISTAKES

Using dot notation keys in JSON
Sending only nested field without parent object
Replacing whole parent object unintentionally

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More Rest API Quizzes

A PATCH request updates a nested resource field, such as address.city. Which JSON body correctly updates only the city without affecting other address fields?

Step 1: Understand nested JSON structure

Step 2: Evaluate options

Final Answer:

Quick Check:

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