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How do you audit API usage for security?

Junior ASP.NET Web API
Quick Answer Audit API usage: log every authenticated request with user ID, endpoint, timestamp, source IP, and response status. Use structured logging (Serilog/NLog) to a searchable log store. Action filters or middleware for consistent audit logging across all endpoints. Flag anomalous patterns (many requests in short time, unusual endpoints). Retain audit logs per compliance requirements (GDPR, PCI-DSS).

Answer

Audit using structured logs including:

  • User identity
  • Action invoked
  • Timestamp
  • IP address
  • Request and response metadata

Essential for compliance and threat detection.

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SugharaIQ Editorial Team Verified Answer

This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.

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