Rest API - URL and Resource Design
You want to design a REST API URL to access a comment with ID 555 on a post with ID 101. Which URL correctly uses resource identifiers to reflect this nested relationship?
You want to design a REST API URL to access a comment with ID 555 on a post with ID 101. Which URL correctly uses resource identifiers to reflect this nested relationship?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand resource hierarchy
The comment belongs to a post, so the post resource should come first in the URL.Step 2: Check each URL option
/posts/101/comments/555 correctly places the post ID first, then the comments resource with its ID. Other options mix the order or IDs incorrectly.Final Answer:
/posts/101/comments/555 -> Option AQuick Check:
Parent resource ID before child resource ID [OK]
Quick Trick: Parent resource ID comes before child resource ID in URL [OK]
Common Mistakes:
MISTAKES- Reversing parent and child resource order
- Mixing IDs between resources
- Placing IDs in wrong path segments
Master "URL and Resource Design" in Rest API
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