Now that we have the Node.js environment installed and ready to work, we are going to explore the creation of our REST API application. This kind of application is currently being developed by many projects and companies, because it has the advantage of an application focused only on feeding any client-side application with data. Nowadays, it’s quite common to create web and mobile apps that consume data from one more APIs. This means that several kinds of client applications consult the same server focused on dealing with data. Besides, it also allows each application—client or server—to be worked with by different teams.