logging-standards

Structured logging with structlog enforces consistent log formats by defining message structures, injecting context variables, and using specific patterns for different events to ensure application logs are easily parsable and searchable.

Masking PII in application logs requires adhering to defined message structures that automatically redact sensitive fields. This ensures Personally Identifiable Information is sanitized before logs are sent to aggregation tools.

Log levels should be used based on specific event definitions: TRACE and DEBUG for diagnostics, INFO for runtime events, WARN for anomalies, and ERROR or FATAL for critical failures requiring immediate attention.

Structured logging integrates seamlessly with log aggregation tools like Seq and OpenTelemetry by enforcing consistent formats, timestamps, and correlation IDs, enabling effective performance tracking and centralized monitoring.

Standardizing application logs for a new microservice involves reviewing log statements against best practices, ensuring consistent formats, appropriate log levels, and context variable injection for seamless central logging system integration.

Without correlation IDs, structured logging loses the ability to trace requests across distributed microservices, making it difficult to track errors and performance metrics effectively within aggregation tools.