Now, let's write the simple application code to test things out. This app is going to basically connect to our locally running MongoDB server, insert a few records as seed data, and then provide the output on whether or not the data was inserted properly into MongoDB. You can download a Gist of the code via this URL: http://bit.ly/1JpT8QL.

Using your editor of choice, create a new file named app.js and save it to the application root, which is the testapp folder. Just copy the content of the preceding Gist on to the app.js file.