WebSocket请求响应子协议(WebSocket request-response subprotocol)

 WebSocket提供像人类谈话的双向通信。 客户端可以向服务器发送数据，服务器可以随时向客户端发送数据。 但是问题呢？ 请求响应行为？ 客户端可以向服务器询问一些信息，等待响应。 似乎Websocket不提供任何将客户端数据（请求）链接到服务器数据（响应）。 
 
 这可能是子协议的工作，我有一些关于如何做的想法（用请求发送一个id，并等待具有相同ID的响应，直到超时时间）。 
 
 为了不重画轮子并节省一些时间，我在互联网上查看了一个现有的解决方案，但是我没有找到任何相关的东西（也许是坏的关键字）。 
 
 那么有人知道这种工作，还是我错过了什么？ 

WebSocket provide a bi-directional communication like a human being talks. The client can send data to the server and the server can send data to the client at anytime. But what about the question ? the request-response behavior ? The client could ask something to the server and wait for a response. It seems that Websocket doesn't provide anything to link client data (request) to server data (response).
 
It's probably the work of the subprotocol and I have some ideas on how to do it (send a id with the request and wait for a reponse with the same id until a timeout period). 
 
In order to do not remake the wheel and to save some time, I looked over the internet for a existing solution but I haven't found anything related (maybe bad keywords).
 
So is there anyone aware about this kind of work or am I missing something ?

原文：https://stackoverflow.com/questions/10882370