vapor4_sesion_use.swift

// MARK: - HTTP -

func routes(_ app: Application) throws {
	...
	
    ///
    app.post("login") { req -> HTTPStatus  in
        let login = try req.content.decode(LoginRequest.self)

		...
		
		// almacenamos valores en la sesion
		req.session.data["nickname"] = login.nickname
		req.session.data["room"] = login.roomName
        

        ...
    }
}

// MARK: - WebSockets -

func webSockets(_ app: Application) throws 
{
    app.webSocket("chat") { request, ws in 
        ...
		
		// Recuperamos valores de la sesion.
        let userName = request.session.data["nickname"] ?? "Usuario desconocido"
        let room = request.session.data["room"] ?? "The Empty"
						   
		...
	}
}