connects to a mongo db and randomly populates it with data

populator.js

/**
 * populator
 *
 *  connects to a db and randomly populates it with data
 */
const MONGO_URL = 'mongodb://user:[email protected]:27017/db_name'

const mongoose = require('mongoose')
const random = require('mongoose-simple-random')

mongoose.connect(MONGO_URL);
const db = mongoose.connection

var EntrySchema = mongoose.Schema({
  name: String,
  createdAt: Date,
  updatedAt: Date
});
EntrySchema.plugin(random);

const Entry = mongoose.model('Entry', EntrySchema)

const insertEntry = (Model) => {
  const obj = { name: 'test', createdAt: Date.now() }

  Model.create(obj, (err, entry) => {
    if (err) return console.error(err)
    console.log(`entry inserted: ${entry._id}`)
  })
}

const updateEntry = (Model) => {
  Model.findOneRandom((err, entry) => {
    if (err) return console.error(err)
  
    entry.updatedAt = Date.now()
    entry.name = `${entry.name}.updated`
    entry.save((err) => {
      if (err) return console.error(err)
      console.log(`entry updated: ${entry._id}`)
    })
  })
}

const getAll = (Model) => {
  const query = { name: {'$ne': null } }

  Model.find(query, (err, entries) => {
    if (err) return console.error(err)
    console.log(`got all ${entries.length} entries`)
  })
}

db.on('error', (err) => console.error(err))

db.once('open', () => {
  console.log('Connected correctly to server')

  setInterval(insertEntry, 1000, Entry)
  setInterval(updateEntry, 3000, Entry)
  setInterval(getAll, 30000, Entry)
})