Rest API - REST API Fundamentals
You want to design an API to manage orders and their items. Which URL and HTTP method combination best follows resource-based design to update the quantity of item 7 in order 42?
You want to design an API to manage orders and their items. Which URL and HTTP method combination best follows resource-based design to update the quantity of item 7 in order 42?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Identify the resource and action
The resource is the specific item (ID 7) inside order 42. Updating quantity means modifying this resource.Step 2: Choose correct HTTP method and URL
PUT is used to update existing resources. The URL should point to the specific item resource: /orders/42/items/7.Final Answer:
PUT /orders/42/items/7 with updated quantity in body -> Option BQuick Check:
Update nested resource = PUT to specific item URL [OK]
Quick Trick: Use PUT on specific nested resource URL to update it [OK]
Common Mistakes:
- Using POST to update existing item
- Using DELETE to update data
- Using GET with query to change data
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