RestHandler::RestStreamRequest Class Reference

the base class for handling HTTP chunked requests and responses within the RestHandler infrastructure More...

Inheritance diagram for RestHandler::RestStreamRequest:

Public Member Methods
	constructor (RestHandler::AbstractRestStreamRequestHandler n_stream, HttpServer::HttpListenerInterface listener, HttpServer::AbstractHttpRequestHandler handler, Socket s, hash< auto > cx, hash< auto > hdr, auto body)
	creates the object with the given attributes
	destructor ()
	destroys the object and updates the request handler about the status of the persistent connection

Private Member Methods
hash< HttpServer::HttpHandlerResponseInfo >	getResponseHeaderMessageImpl ()
nothing	recvImpl (hash< auto > v)
	callback method for receiving chunked data; this calls RestHandler::AbstractRestStreamRequestHandler::recv() with the argument More...
auto	sendImpl ()
	callback method for sending chunked data; this calls RestHandler::AbstractRestStreamRequestHandler::send() and returns the result More...

Detailed Description

the base class for handling HTTP chunked requests and responses within the RestHandler infrastructure

Member Function Documentation

getResponseHeaderMessageImpl()

hash<HttpServer::HttpHandlerResponseInfo> RestHandler::RestStreamRequest::getResponseHeaderMessageImpl ( )

private

Returns

a HttpHandlerResponseInfo hash with the following keys:

• "code": the HTTP return code (see HttpServer::HttpCodes)
• "body": the message body to return in the response; if this key is returned, then the reply is sent immediately; a chunked reply is not made, and send() and sendImpl() are not called
• "close": (optional) set this key to True if the connection should be unconditionally closed when the handler returns
• "hdr": (optional) set this key to a hash of extra header information to be returned with the response

Note

this method is called after the message body has been received

recvImpl()

nothing RestHandler::RestStreamRequest::recvImpl ( hash< auto >  v )

private

callback method for receiving chunked data; this calls RestHandler::AbstractRestStreamRequestHandler::recv() with the argument

Parameters

v

the first time this method is called with a hash of the message headers in the "hdr" key, and then with any message body in the "data"; if a chunked HTTP message is received, then this method is called once for each chunk; when the message has been received, then this method is called with a hash representing any trailer data received in a chunked transfer or NOTHING if the data was received in a normal message body or if there was no trailer data in a chunked transfer. The argument to this callback is always a hash; data calls have the following keys: "data": the string or binary data, or, in the case of a non-chunked request, the already decoded and deserialized request body, in which case the "deserialized" key will be True "chunked": True if the data was received with chunked transfer encoding, False if not "deserialized": present and set to True if a non-chunked request was received, and the body has already been deserialized Header or trailer data is placed in a hash with the following keys: "hdr": this can be assigned to NOTHING for the trailer hash if the data was not sent chunked or no trailers were included in a chunked message "obj": this is the owning object (so socket parameters can be changed based on headers received, such as, for example, socket character encoding)

sendImpl()

auto RestHandler::RestStreamRequest::sendImpl ( )

private

callback method for sending chunked data; this calls RestHandler::AbstractRestStreamRequestHandler::send() and returns the result

Returns

The chunked HTTP data to send; this method must return either a string or a binary value each time it is called to give the chunked data to send; when all data has been sent, then a hash of message trailers can be returned or simply NOTHING which will close the chunked message