Logging

Logging is crucial for any application as it helps in monitoring and debugging application code during development. Catalyst exposes a logger instance that is installed at the global scope which can be used in server logging.

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Usage

Logger provides 3 levels of logging i.e info, debug and error.

logger.info("info message")
logger.debug("debug message")
logger.error("error message")

Logs are visible in the console.

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Log Format

Logs are printed in the following format.

{
  level: "info",
  log_level: "info",
  message: "log message",
  timestamp: "YYYY-MM-DD HH:mm:ss"
}

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Store logs in files

Logs can be written in log file by setting the ENABLE_FILE_LOGGING key in config.json to true. Its default value is false.

Logs are cleared in 3 days and are stored in the root directory of the project.

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Configuration

Logging level can be controlled by the following variables in the config.json

Key	Use
ENABLE_DEBUG_LOGS	disable debug logs in production or development
ENABLE_CONSOLE_LOGGING	control console logging
ENABLE_FILE_LOGGING	control file logging