Structured logging and log levels

Structured logging involves organizing log messages in a predefined format, typically as key-value pairs or JSON objects, making them more machine-readable and enabling easier analysis. Log levels indicate the severity or importance of a log message.

Here are some best practices for structured logging:

• Consistent format: Define a consistent structure for log messages across all microservices. Use key attributes such as timestamp, level, service_name, and custom fields.
• Contextual information: Include relevant context information in logs, such as user IDs, transaction IDs, and service-specific identifiers. Facilitate correlation between logs from different microservices.
• Error information: For error logs, include details such as error codes, stack traces, and additional diagnostic information. This aids in root cause analysis (RCA) and debugging.
• Correlation IDs: Use correlation IDs to trace requests across microservices. Include...