[Solved] Given this REST API response:{"state": "processing", "actions": {"complete":... | Rest API

Rest API - HATEOAS and Linking

Given this REST API response:

{"state": "processing", "actions": {"complete": "/tasks/321/complete"}}

What is the expected outcome if the client attempts the "complete" action when the state is "pending"?

AThe server will reject the request because "complete" is invalid in "pending" state

BThe server will accept and complete the task regardless of state

CThe client will automatically update the state to "processing" before completing

DThe client can perform "complete" action anytime without restrictions

Step-by-Step Solution

Solution:

Step 1: Check action availability
The "complete" action link is provided only when the state is "processing".
Step 2: State validation
If the client tries "complete" in "pending" state, the server should reject it as invalid.
Final Answer:
The server will reject the request because "complete" is invalid in "pending" state -> Option A
Quick Check:
Action links reflect valid states only [OK]

Quick Trick: Actions valid only in current state [OK]

Common Mistakes:

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