[Solved] What will be the output of this pseudocode if the API key is missing? function validateKey(request) { key = request.... What will be the output of this pseudocode if the API key is missing? | Microservices

Microservices - Authentication and Authorization

What will be the output of this pseudocode if the API key is missing?

function validateKey(request) {
  key = request.headers['Authorization']
  if (!key) {
    return 'No API key provided'
  }
  if (key == 'valid-key') {
    return 'Access granted'
  }
  return 'Access denied'
}
print(validateKey({headers: {}}))

ANo API key provided

BAccess denied

CAccess granted

DError: missing header

Step-by-Step Solution

Solution:

Step 1: Check if key exists in headers
The headers object is empty, so key is undefined or falsey.
Step 2: Follow conditional for missing key
The code returns 'No API key provided' when key is missing.
Final Answer:
No API key provided -> Option A
Quick Check:
Missing key returns 'No API key provided' [OK]

Quick Trick: Missing keys trigger specific error messages [OK]

Common Mistakes:

MISTAKES

Assuming missing key equals access denied
Expecting runtime error

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What will be the output of this pseudocode if the API key is missing?

Step 1: Check if key exists in headers

Step 2: Follow conditional for missing key

Final Answer:

Quick Check:

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