Adding some features over console methods to log objects.

To log INFO|WARN|DEBUG|ERROR objects use:

Logging some message:

Use common log methods to log different levels of information.

console.info( 'Foo' );
//or
console.info( { message: 'Foo' } );

Output will be this a stringified object like this:

{
  "message": "Foo",
  "system": "Your system name",
  "service": "your service name",
  "hostname": "Machine name",
  "type": "log",
  "level": "INFO",
  "timestamp": "2017-09-01T02:34:53.134Z"
}

Using different log levels

The level prop varies according to the method called:

console.info(); // level: INFO
console.warn(); // level: WARN
console.debug(); // level: DEBUG
console.error(); // level: ERROR

Logging properties:

You can add any props to the output object, simple logging a object with those

console.info( { message: 'Foo', custom_field: 'customize', another_field: 'more_values' } );

Outputs:

{
  "message": "Foo",
  "custom_field": "customize",
  "another_field": "more_values",
  "system": "Your system name",
  "service": "your service name",
  "hostname": "Machine name",
  "type": "log",
  "level": "INFO",
  "timestamp": "2017-09-01T02:34:53.134Z"
}

Note that you cannot overwrite the default props

To log metrics

Use V8 native method table to log a metric object.

console.table( { custom_field: 'bar', another_field: 'bar' } );

Is almost the same object:

{
  "custom_field": "bar",
  "another_field": "bar",
  "system": "Your system name",
  "service": "your service name",
  "hostname": "Machine name",
  "type": "metric",
  "timestamp": "2017-09-01T02:34:53.134Z"
}

Note that you do not have a level anymore, nor a message

Automatic fields:

These are the fields added by default by the lib (an their values):

• system: Read from process.env.SYSTEM_NAME
• service: Read from process.env.SERVICE_NAME
• hostname: Read from require('os').hostname()
• type: Automatic set for 'log' or 'metric'
• level: Log only. Set after the method called
• timestamp: Current date in ISO-8601 format