Chapter 4. Response From the Server

This chapter is about understanding how web servers respond to HTTP requests and how it works in Express. We will cover the details of the response process and learn how to serve different kinds of content in Express.

You will learn the following in this chapter:

  • The basics of HTTP response format
  • How to set HTTP status code in Express
  • How to set HTTP headers in Express
  • How to serve different kinds of content in Express

A primer on HTTP response

To understand the types of response Express is capable of generating and have a better control over them, it is important that you have some technical understanding about the underlying HTTP protocol's response format. So, let's go over it real quick and cover the basics.

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