You have multiple API keys for different clients. How can you implement API key authentication to track usage per client effectively?

hard🚀 Application Q9 of Q15

Rest API - Authentication and Authorization

AStore each API key with client info and check the key on each request to log usage

BUse a single API key for all clients and track usage by IP address

CSend API keys in the request body and ignore headers

DAllow clients to share API keys to reduce management overhead

Step-by-Step Solution

Solution:

Step 1: Understand client-specific API key management
Storing keys with client info allows tracking and controlling usage per client.
Step 2: Evaluate other options
Single key loses client distinction, sending keys in body is non-standard, sharing keys reduces security.
Final Answer:
Store each API key with client info and check the key on each request to log usage -> Option A
Quick Check:
Track usage by client = store keys individually [OK]

Quick Trick: Map API keys to clients to track usage accurately [OK]

Common Mistakes:

MISTAKES

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