Django Rest source framework APIView call

　　Previous say the process requesting access, this one say about the request to call the corresponding source code

• as_view
  • Defined view
  • dispatch
• dispatch
  • initialize_request　　
    • get_parsers (get parser)
    • parser_context (analytical context)
    • get_authentitors (get authenticator)
    • get_context_negotiator (get the context content)
  • default_response_headers
  • initial
    • get_format_suffix
    • kwargs acquired on
    • key is configured FORMAT_SUFFIX_KWARG settings
    • perform_content_negotiation
      • get_renderers
      • get_content_negotiator
    • determine_version
      • versioning_class
    • perform_authentication
      • request.user
      • user is a property modification function uses
        • Get request._user
        • Perform the authentication process property does not exist
        • Convenience authenticator
        • Call authenticator method authenticate
        • If authentication is successful will return a Ganso (user, auth), user and auth will be saved to the request
        • If the authentication is abnormal or authentication is not all succeed, or go directly to _not_authenticated
      • get_authenticators obtained authenticator
    • check_permissions
      • get_permissions
      • Iteration
      • If you do not have permission, will permission_denied
        • Direct throw an exception, so the program is terminated
      • What considered a privilege
        • All the devices have no rights to return, has_permission return true
    • check_throttles
      • get_throttles
      • Since throttling method will allow_request
        • True to allow representatives return
        • Representatives do not allow returns False
          • We will not allow Throttled
          • It is Throws