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Home > @loopback/socketio > SocketIoServer > controller
SocketIoServer.controller() method
Register a socket.io controller
Signature:
controller(controllerClass: Constructor<unknown>): Binding<unknown>;
Parameters
| Parameter | Type | Description | 
|---|---|---|
| controllerClass | [Constructor](/doc/en/lb4/apidocs.context.constructor.html)<unknown> | 
Returns:
Binding<unknown>