Mag logger facade

Logger facade provides a simplified interface to various logging mechanism.

This module is used by mag logger.

Logger:

• Should respond to methods named by syslog severity levels
• Should respond to methods named by syslog shortcut severity lavels
• Should respond to log method

Specification

Specification of internal log messages can be found here: SPEC.md

API

Logger(stream, namespace)

Logger facade constructor

Params:

• WritableStream stream - destination for logs
• String namespace - tag for each log object

log(...any)

Method for consistency to standart console object

Params:

• ...any data - all arguments will be passed to log object

emergency(...any)

aliases: emerg, panic

Use cases: Your application is completely broken. If you sleep, you must wake up and begin to repair your application.

Params:

• ...any data - all arguments will be passed to log object

alert(...any)

Use cases: Your application does not work. If you going to go to bed, you should not do this, you must begin to repair your application.

Params:

• ...any data - all arguments will be passed to log object

critical(...any)

alias: crit

Use cases: Your application is running, but can be broken soon. If you eat, you should do it quickly and begin to repair your application.

Params:

• ...any data - all arguments will be passed to log object

error(...any)

alias: err

Use cases: Your application is running, but something bad happened. You must add the task "fix the bug" to your to-do list.

Params:

• ...any data - all arguments will be passed to log object

warning(...any)

alias: warn

Use cases: Your application is running, but soon you may see error messages. You should add the task "fix the bug" to your to-do list.

Params:

• ...any data - all arguments will be passed to log object

notice(...any)

Use cases: Your application is running, but something unusual happened. You have to think about it in your spare time.

Params:

• ...any data - all arguments will be passed to log object

informational(...any)

alias: info

Use cases: Your application works fine. These messages show how well.

Params:

• ...any data - all arguments will be passed to log object

debug(...any)

Use cases: You can use it during development. And do not use in production environment.

Params:

• ...any data - all arguments will be passed to log object

License

MIT