For many years, NodeJS developers' choice of web framework is ExpressJS.
After taking this course, you can start mastering ExpressJS by building RESTful APIs for your single-page applications (powered by AngularJS, ReactJS, BackboneJS or any other front-end framework). With ExpressJS, developers can easily organize their code (middleware pattern), add more functionality (npm modules) and configure the server (configuration over convention).
Moreover, Express is mature and very stable so that it's a default choice for small companies and large enterprises. Even more advanced frameworks, like Sails or Loopback, extend ExpressJS (i.e., they depend on Express). Therefore, learning ExpressJS first is a valuable investment, because you can apply the same skills and existing ExpressJS middleware to more advanced frameworks. You’ll learn how to use Docker for Node/Express deployment.