[Solved] You want to design a REST API response for a blog post that includes links to the post itself, the author's profile, and... Which JSON structure correctly uses link relations to represent these? | Rest API

Rest API - HATEOAS and Linking

You want to design a REST API response for a blog post that includes links to the post itself, the author's profile, and comments. Which JSON structure correctly uses link relations to represent these?

A{ "links": [ { "rel": "self", "url": "/posts/10" }, { "rel": "author", "url": "/users/5" }, { "rel": "comments", "url": "/posts/10/comments" } ] }

B{ "_links": { "self": { "href": "/posts/10" }, "author": { "href": "/users/5" }, "comments": { "href": "/posts/10/comments" } } }

C{ "_links": { "self": "/posts/10", "author": "/users/5", "comments": "/posts/10/comments" } }

D{ "_links": { "self": { "url": "/posts/10" }, "author": { "url": "/users/5" }, "comments": { "url": "/posts/10/comments" } } }

Step-by-Step Solution

Solution:

Step 1: Recall the correct link relation format
Each link relation should be an object with an 'href' key inside the '_links' object.
Step 2: Evaluate each option's structure
{ "_links": { "self": { "href": "/posts/10" }, "author": { "href": "/users/5" }, "comments": { "href": "/posts/10/comments" } } } correctly uses '_links' with 'self', 'author', and 'comments' keys, each having an 'href' URL. Options B and D use 'url' instead of 'href', and C uses strings instead of objects.
Final Answer:
{ "_links": { "self": { "href": "/posts/10" }, "author": { "href": "/users/5" }, "comments": { "href": "/posts/10/comments" } } } -> Option B
Quick Check:
Use '_links' with objects containing 'href' URLs [OK]

Quick Trick: Use '_links' with 'href' keys for each relation [OK]

Common Mistakes:

Using 'url' instead of 'href' for links
Using arrays instead of objects for link relations
Assigning string URLs directly without 'href' objects

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More Rest API Quizzes

Which JSON structure correctly uses link relations to represent these?

Step 1: Recall the correct link relation format

Step 2: Evaluate each option's structure

Final Answer:

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