pm2/modules/pm2-io-bpm/features/events.js

Production process manager for Node.JS applications with a built-in load balancer.

'use strict'

const { ServiceManager } = require('../serviceManager')
const Debug = require('debug')

class EventsFeature {
  constructor () {
    this.transport = undefined
    this.logger = Debug('axm:features:events')
  }

  init () {
    this.transport = ServiceManager.get('transport')
    this.logger('init')
  }

  emit (name, data) {
    if (typeof name !== 'string') {
      console.error('event name must be a string')
      return console.trace()
    }
    if (typeof data !== 'object') {
      console.error('event data must be an object')
      return console.trace()
    }
    if (data instanceof Array) {
      console.error('event data cannot be an array')
      return console.trace()
    }

    let inflightObj = {}
    try {
      inflightObj = JSON.parse(JSON.stringify(data))
    } catch (err) {
      return console.log('Failed to serialize the event data', err.message)
    }

    inflightObj.__name = name
    if (this.transport === undefined) {
      return this.logger('Failed to send event as transporter isnt available')
    }
    this.transport.send('human:event', inflightObj)
  }

  destroy () {
    this.logger('destroy')
  }
}

module.exports = { EventsFeature }