mongo.js

//database setting
var db_url =
  "mongodb+srv://mirsahib24:[email protected]/rotten-pumpkin?retryWrites=true&w=majority";
mongoose.connect(db_url, { useNewUrlParser: true });

mongoose.connection.on("error", function(err) {
  console.log(err);
  console.log("Could not connect to mongodb");
});

mongo.MongoClient.connect(db_url, { useNewUrlParser: true }, function(
  err,
  client
) {
  if (err) {
    console.log("Could Not Connect DB");
  } else {
    db = client.db("Test");
  }
});