This chapter has been a big jump start into ExpressJS routes, middleware, and controllers. It built on what you learned in the previous chapters about MongoDB for creating a Product model and controller. We covered some supporting topics needed for implementing a high quality RESTful API such as testing and REST basics.

In the next chapter, we are going to use the product API created here and connect it with the AngularJS side. That will complete the CRUD for products from end to end!