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Which of the following is a best practice for storing API keys securely?

easy📝 Conceptual Q2 of 15
Microservices - Authentication and Authorization
Which of the following is a best practice for storing API keys securely?
AStore keys in environment variables or secure vaults
BEmbed keys directly in frontend JavaScript code
CSend keys as URL query parameters
DWrite keys in plain text files on the server
Step-by-Step Solution
Solution:

  1. Step 1: Identify secure storage methods

    Environment variables and secure vaults protect keys from unauthorized access.

  2. Step 2: Evaluate other options

    Embedding keys in frontend or URLs exposes them; plain text files are insecure.

  3. Final Answer:

    Store keys in environment variables or secure vaults -> Option A

  4. Quick Check:

    Secure storage = Environment variables or vaults [OK]
Quick Trick: Never expose keys in frontend or URLs [OK]
Common Mistakes:
MISTAKES
  • Putting keys in frontend code
  • Passing keys in URLs

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