Answers for "mongodb to mongoose connection erro"

mongoose connection nodejs

const mongoose = require('mongoose');

const connectDB = async () => {
    mongoose
        .connect('mongodb://localhost:27017/playground', {
            useCreateIndex: true,
            useNewUrlParser: true,
            useUnifiedTopology: true,
            useFindAndModify: false
        })
        .then(() => console.log('Connected Successfully'))
        .catch((err) => console.error('Not Connected'));
}

module.exports = connectDB;

mongoose connection

const mongoURI =
  "mongodb+srv://userTest:<password>@cluster0.hgkll.mongodb.net/myFirstDatabase?authSource=admin&replicaSet=atlas-eu2ek5-shard-0&w=majority&readPreference=primary&appname=MongoDB%20Compass&retryWrites=true&ssl=true";
mongoose
  .connect(mongoURI, {
    useNewUrlParser: true,
    useUnifiedTopology: true,
  })
  .then(() => {
    // eslint-disable-next-line
    console.log("Database Connection Established...!");
  })
  .catch((err) => {
    // eslint-disable-next-line
    console.log("Error: Database connection can not be established...!", err);
  });