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If HTTP is the Internet's courier, HTTP messages are the packages it uses to move things around. In Chapter 1, we showed how HTTP programs send each other messages to get work done. This chapter tells you all about HTTP messages--how to create them and how to understand them. After reading this chapter, you'll know most of what you need to know to write your own HTTP applications. In particular, you'll understand:
How messages flow
The three parts of HTTP messages (start line, headers, and entity body)
The differences between request and response messages
The various functions (methods) that request messages support
The various status codes that are returned with response messages
What the various HTTP headers do
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Created: January 13, 2003
Revised: February 5, 2003
URL: http://webreference.com/programming/http/chap3/
