Danet

Middlewares

There is no difference between the HTTP middlewares layer and the corresponding web sockets layer. But at least you know they exist !

Here is an example, where we use middleware to tell the client how it's going. But your usecase will probably be better than ours !

@Injectable()
class SimpleMiddleware implements DanetMiddleware {
	constructor(private simpleInjectable: SimpleInjectable) {
	}

	async action(ctx: ExecutionContext, next: NextFunction) {
		ctx.websocket!.send(
			JSON.stringify({
				topic: 'status',
				data: {
          				middleware: 'SimpleMiddleware'
        			},
			}),
		);
		await next();
	}
}


@Middleware(SimpleMiddleware)
@WebSocketController('ws')
class ControllerWithMiddleware {
	@OnWebSocketMessage('trigger')
	getWithoutMiddleware() {
	}
}

Middlewares ​

Middlewares