logger.js

const util = require('util')
const winston = require('winston')
const _ = require('lodash')

// ------------------------------------
// Rollbar
// ------------------------------------

module.exports = {
  init (logger, conf) {
    let RollbarLogger = winston.transports.RollbarLogger = function (options) {
      this.name = 'rollbarLogger'
      this.level = options.level || 'warn'
      this.rollbar = require('rollbar')
      this.rollbar.init(options.key)
    }
    util.inherits(RollbarLogger, winston.Transport)

    RollbarLogger.prototype.log = function (level, msg, meta, callback) {
      this.rollbar.handleErrorWithPayloadData(new Error(msg), _.assignIn(meta, { level }))
      callback(null, true)
    }

    logger.add(new RollbarLogger({
      level: 'warn',
      key: conf.key
    }))
  }
}