comet and clients protocols

comet supports two protocols to communicate with client: WebSocket, TCP

websocket

Request URL

ws://DOMAIN/sub

HTTP Request Method

WebSocket (JSON Frame). Response is same as the request.

Response Result

{
    "ver": 102,
    "op": 10,
    "seq": 10,
    "body": {"data": "xxx"}
}

Request and Response Parameters

parameter	is required	type	comment
ver	true	int	Protocol version
op	true	int	Operation
seq	true	int	Sequence number (Server returned number maps to client sent)
body	json	The JSON message pushed

tcp

Request URL

tcp://DOMAIN

Protocol

Binary. Response is same as the request.

Request and Response Parameters

parameter	is required	type	comment
package length	true	int32 bigendian	package length
header Length	true	int16 bigendian	header length
ver	true	int16 bigendian	Protocol version
operation	true	int32 bigendian	Operation
seq	true	int32 bigendian	jsonp callback
body	false	binary	$(package lenth) -$(header length)

Operations

operation	comment
2	Client send heartbeat
3	Server reply heartbeat
7	authentication request
8	authentication response