node-auth/api/src/db.js

import mongo from 'mongodb'

const { MongoClient } = mongo

const url = process.env.MONGO_URL

export const client = new MongoClient(url, { useNetUrlParser: true })

export async function connectDb() {
  try {
    await client.connect()
    // Confirm connection
    await client.db("admin").command({ ping: 1 })
    console.log("🗄️ Connected to DB Success");
  } catch(e) {
    console.error(e)
    // If there is a problem close connection to db
    await client.close()
  }
}