
demonstrated a set of request and response messages, we can align the header
types using the previous example. Let’s start with our request headers, which have
a simple format containing a request-line.
Request-Line = Method SP Request-URI SP HTTP-Version CRLF
A request line requires a Method, followed by a space, the requested URI,
then a space, the HTTP-version, then a carriage return/line feed (CRLF).
The Method value determines the type of request that will be performed on
the server. When it accesses the documents or information, the HTTP protocol
specifies that information as a resource, so there are resource identifiers, resource
locators, and resour ...