WRITING THE CODE

Start with the connection.js file

                    Inside the db folder create a file called connection.js
                    and add the following code to it
                

            const mongoose = require('mongoose');
            require('dotenv').config();

            const connection = async () => {
                try {
                        await mongoose.connect(process.env.MONGO_URI)
                        console.log('Successfully connected to Database...');
                    } catch (error) {
                        console.log(error);
                    }
            }

            connection();
        

YOU CAN NOW RUN THE connection.js FILE IN THE TERMINAL
AND IT SHOULD SHOW THE FOLLOWING

Successfully connected to Database... 
            

in the terminal

If it does go on to create the server, if it doesn't check all previous steps

NOW CREATE THE SERVER