messageKey

perj messageKey Option

The messageKey option enables you to change the JSON key used for the message output.

Type: String

Default: msg

Valid: Any String

Description:

The messageKey option is used to change the key used in the output JSON for the message value. For example, the default messageKey of 'msg' will produce an output from the logger of:

{"level": "info", "lvl": 30, "time": 12345, "msg": "something",...

If you set the messageKey option to 'message' then the output from the logger would look like:

{"level": "info", "lvl": 30, "time": 12345, "message": "something",...

Example

This example changes the messageKey from the default of 'msg' to 'message':

import Perj from 'perj'
const log = new Perj({ messageKey: 'message' })

log.info('You have advanced to the next level!')

/*

Standard out will be:

{"level":"info","lvl":30,"time":1525643291716,"message":"You have advanced to the next level!","data":""}

*/