[Solved] Given this JSON response snippet from a REST API:{ "state": "pending", "actions": { "approve": "https://api.example.com/items/42/approve", "reject": "https://api.example.... | Rest API

Rest API - HATEOAS and Linking

Given this JSON response snippet from a REST API:

{
  "state": "pending",
  "actions": {
    "approve": "https://api.example.com/items/42/approve",
    "reject": "https://api.example.com/items/42/reject"
  }
}

What will happen if the client calls the URL in the "approve" action link?

AThe item state will change to approved

BThe item will be deleted

CThe client will receive an error because the URL is invalid

DThe item state will remain pending

Step-by-Step Solution

Solution:

Step 1: Understand the meaning of the "approve" action link
The "approve" link is provided as a next step to change the state from "pending" to "approved" by calling that URL.
Step 2: Predict the effect of calling the approve URL
Calling the approve URL triggers the state transition to "approved" as intended by the API design.
Final Answer:
The item state will change to approved -> Option A
Quick Check:
Calling "approve" URL = state changes to approved [OK]

Quick Trick: Action link name hints the state change [OK]

Common Mistakes:

Assuming the URL deletes the item
Thinking the URL is invalid
Believing state stays the same after action

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More Rest API Quizzes

Given this JSON response snippet from a REST API:

Step 1: Understand the meaning of the "approve" action link

Step 2: Predict the effect of calling the approve URL

Final Answer:

Quick Check:

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