http-message

Introduction

HTTP has two types of messages, request message and response message. Both messages consist of a start line, headers, and an optional body.

Note that, HTTP messages, as defined in HTTP/1.1 and earlier, are human-readable. In HTTP/2, these messages are embedded into a binary structure, a frame, allowing optimizations like compression of headers and multiplexing.

Request Message

Http Request message consists of the following elements:

1. An HTTP method.
2. The path of the resource to fetch.
3. The version of the HTTP protocol.
4. Optional headers.
5. An optional body.

Response Message

Http Response message consists of the following elements:

1. The version of the HTTP protocol.
2. A status code indicating the success or failure of the request.
3. A status message.
4. Optional headers.
5. An optional body.

Reference

1. MDN - HTTP Messages