Chapter 17: Request & Response Content
The new RFC 9110 left the term payload to HTTP/2 and replaced its original meaning with the terms request content and response content. In both cases, these refer to structures that are either sent as part of a request message or returned by the server inside a response message.
💡
When designing these structures, it’s important to ensure that each one can be represented using all supported media types. Don’t be confused by the fact that I’m using JSON as an example.