[Solved] Consider this simplified server response code snippet handling a refresh token request: if refresh_token == valid_token: access_token = generate_new_token() return {"access_token":... | Rest API

Rest API - Authentication and Authorization

Consider this simplified server response code snippet handling a refresh token request:

if refresh_token == valid_token:
    access_token = generate_new_token()
    return {"access_token": access_token, "status": 200}
else:
    return {"error": "Invalid refresh token", "status": 401}

What will be the output if refresh_token is invalid?

A{"access_token": "newtoken123", "status": 200}

B{"error": "Invalid refresh token", "status": 401}

CSyntaxError

D{"status": 200}

Step-by-Step Solution

Solution:

Step 1: Analyze the condition for refresh token validity
If the refresh token matches the valid token, a new access token is generated and returned with status 200.
Step 2: Check the else branch for invalid token
If the token is invalid, the code returns an error message with status 401.
Final Answer:
{"error": "Invalid refresh token", "status": 401} -> Option B
Quick Check:
Invalid token returns error 401 [OK]

Quick Trick: Invalid token triggers error response 401 [OK]

Common Mistakes:

Assuming new token is returned even if invalid
Confusing status codes 200 and 401
Expecting syntax errors from valid code

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More Rest API Quizzes

Consider this simplified server response code snippet handling a refresh token request:

Step 1: Analyze the condition for refresh token validity

Step 2: Check the else branch for invalid token

Final Answer:

Quick Check:

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