ERROR

Logs only error messages and critical failures.

This level includes only the most important messages indicating errors, exceptions, and critical system failures that require immediate attention or prevent normal operation.

Message Types

• Certificate validation failures

• Network connection errors

• Configuration parsing errors

• Security policy violations

• System-level exceptions

Use Cases

• Production environments requiring minimal logging

• Error monitoring and alerting systems

• Applications with performance constraints

• Systems requiring audit trails of failures only

Example Messages

• "Certificate pinning failed for domain 'api.example.com'"

• "Failed to fetch configuration from CDN"

• "Invalid project configuration detected"