Market Heartbeat

WebSocket API supports two-way heartbeat. Both Server and Client can send ping message, which the opposite side can return with pong message.

• WebSocket Server sends heartbeat：

{"ping": 18212558000}

• WebSocket Client should respond:：

{"pong": 18212558000}

Note: Once the WebSocket Client and WebSocket Server get connected, the server will send a heartbeat every 5 seconds (the frequency might change). The connection will get disconnected automatically if the WebSocket Client ignores the heartbeat message for 5 times. The server will remain connection if the WebSocket Client responds one “ping” value within the latest 2 heartbeat messages.