[Solved] A client receives this response:{"state": "active", "actions": {}}But the client tries to perform a "deactivate" action by POSTing to "/users/789/deactivate". The server returns 404.... | Rest API

Rest API - HATEOAS and Linking

A client receives this response:

{"state": "active", "actions": {}}

But the client tries to perform a "deactivate" action by POSTing to "/users/789/deactivate". The server returns 404. What is the likely cause?

AThe "deactivate" action link is missing because the user is already active and cannot be deactivated now

BThe client used the wrong HTTP method

CThe URL is incorrect and should be "/users/789/activate"

DThe server is down

Step-by-Step Solution

Solution:

Step 1: Check the actions object
It is empty, so no action links are available for current state.
Step 2: Understand why 404 occurs
Trying to POST to a URL not provided by action links results in 404 Not Found.
Final Answer:
The "deactivate" action link is missing because the user is already active and cannot be deactivated now -> Option A
Quick Check:
Missing action link = 404 on action URL [OK]

Quick Trick: Only use action URLs provided in response [OK]

Common Mistakes:

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