Demo application overview

- In this course we'll be creating a demo chat application.…It will feature HTTP requests made from the front end…to the back end,…as well as web sockets through Socket.IO,…which will allow for automatic push notifications…from the server to the client.…So let's take a look at that.…So I can post a new message…and it will automatically show up in my client,…but in the second client as well,…and vice versa.…

In fact, we can open up as many clients as we like,…and it will scale.…We can even restart our clients,…and the data will still show.…And we'll be using MongoDB and mLab to make our data persist…Most of the node concepts will be taught…by developing this app.…While a few of the more fundamental concepts will be taught…through separate programming lessons.…