Microservices - Authentication and Authorization
Given a microservice receiving a JWT access token, which step correctly validates the token before processing the request?
Given a microservice receiving a JWT access token, which step correctly validates the token before processing the request?
medium📝 Analysis Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Understand JWT validation steps
JWT tokens are validated by checking their signature, expiration time, and scopes to ensure authenticity and permission.Step 2: Eliminate incorrect practices
Decrypting JWT is incorrect because JWTs are signed, not encrypted; querying user service every time reduces scalability; trusting IP alone is insecure.Final Answer:
Check token signature, verify expiration, and confirm required scopes -> Option BQuick Check:
JWT validation = signature + expiry + scopes [OK]
Quick Trick: Validate JWT by signature, expiry, and scopes locally [OK]
Common Mistakes:
MISTAKES- Trying to decrypt JWT instead of verifying signature
- Validating tokens by calling user service every request
- Trusting IP addresses instead of tokens
Master "Authentication and Authorization" in Microservices
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