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Communication Model

There are three type packet will client and server send to each other:

  • handshake - start establish connection
  • request - client send request to server
  • response - server send response to client
  • push - server push real-time data to client

Handshake​

Flow:

After client sending handshake packet server, the connection has been established. If handshake packet is invalid, server will push a close data to client. If access by TCP, client can send handshake packet and first data packet(auth) for accelerating communication.

Request and Response​

Request <--> Response: Client send a request packet, server will send back a response packet.

Flow:

After client and server sucess handshaking, peers can use Request <--> Response to communicate. Request and Response are paired by request_id.

Client and Server can send heartbeat request to each other.

Push​

Push is one peer send data to another peer, and no need response.

Right now, we only support server push data to client.