WebSocket
1012 Service Restart
The server is terminating the connection because it is restarting. The client should reconnect after a brief delay.
When You See This Code
The server is performing a planned restart — for example, during a deployment or configuration reload. The connection will be available again shortly.
How to Fix
Implement automatic reconnection with a short delay (1-5 seconds). This code signals that reconnecting is expected and should succeed once the server is back up.