While most of our starting applications will be done utilizing JSON to pass data between different servers, or even different parts of our applications, it should be noticeable where we may not want to use it. By utilizing other data formats, we can make sure that we get as much speed out of our application as possible.

We have seen what building our own data format could entail and then we took a look at other popular formats that are currently out there. This should be the last piece of information that we need to build highly performant server applications in Node.js. While we will use some libraries for data formats, we should also note that we have really only used the vanilla libraries that come with Node.js.

We will next take a look at a practical example of a static server that caches information. From here, we will utilize all of the previous concepts to create a highly available and speedy static server.