2.2 Message Syntax
This section includes the following:
HTTP Header Fields (section 2.2.1) specifies the syntax for HTTP headers defined by this protocol.
Request Types (section 2.2.2) specifies the types of requests that are defined by this protocol and how each request type is mapped to HTTP.
Packet Types (section 2.2.3) specifies the syntax for the binary packet format that is used in the payloads of the HTTP messages.