Launching the sample app

Once you have the complete code saved to app.js, it's time to execute it and see what happens. However, before you can launch an app that clearly relies on a connection to MongoDB, you need to first boot up the MongoDB daemon instance:

    $ mongod

Now, to launch the app itself, execute the following command after moving to the root folder where app.js is located:

    $ node app.js

When the app first executes, you should see the following:

    Connected correctly to server
    Success :2 chapters inserted!