db.js

import mongoose from 'mongoose'
const dotenv = require('dotenv')

dotenv.config()

const env = { ...process.env }

const isProduction = env.NODE_ENV === 'production'

// Initialize connection to database
const dbUrl = isProduction ? process.env.DATABASE_PROD : process.env.DATABASE_DEV,
  dbOptions = {
    useNewUrlParser: true,
    useFindAndModify: false
  }

// Set DB from mongoose connection
mongoose.connect(dbUrl, dbOptions)

const db = mongoose.connection
db.on('error', console.error.bind(console, 'MongoDB connection error:'))

export default db