how to send Asynchronous response in Alexa smart home skill. I am writing lambda function in nodejs 6.10. My device takes more time 20seconds to complete the operation. So, I am sending deferred response first and the I want to HTTP POST asynchrounous response to event gateway once operation is complete. But I am not understanding how to implement this deferred response and later sending async response to event gateway. Please help me with some sample nodejs implementation of deferred response and also sending async response to event gateway. QUick help is much appreciated.