The Spring Web Module (https://github.com/spring-projects/spring-framework/tree/master/spring-web) has many foundational pieces used to build reactive web applications. It allows you to do operations pertaining to the server and the client.

The capabilities that it provides on the server are divided into two areas:

• HTTP: Contained within the org.springframework.http package in spring-web and contains various APIs for HTTP request handling for supported servers
• Web: Contained within the org.springframework.web package in spring-web and contains various APIs for request processing

This module also contains message codecs that work on the client and aid in encoding and decoding requests and responses. These codecs can also be used on the server.