Guide to ExpressJS free
ExpressJS Tutorial
Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications. It is an open source framework developed and maintained by the Node.js foundation.
This tutorial has been created for anyone who has a basic knowledge of HTML, Javascript and how client-servers work. After completing this tutorial, you will be able to build moderately complex websites and back-ends for you mobile applications.
You should have basic knowledge of Javascript and HTML. If you are not acquainted with these, we suggest you to go through tutorials on those areas first. It will definitely help, if you have some exposure to HTTP, although it is not mandatory. Having a basic knowledge of MongoDB will help you with the Database chapter.