Voximplant ASR example #4: voice bot

asr_voice_bot.js

// Enable ASR module
require(Modules.ASR);

var call, asr;

// Answer inbound call
VoxEngine.addEventListener(AppEvents.CallAlerting, function (e) {
	call = e.call;
	call.addEventListener(CallEvents.Connected, onCallConnected);
	call.addEventListener(CallEvents.Disconnected, VoxEngine.terminate);
	call.answer();
});

function onCallConnected(callevent) {
    // create ASR instance
	asr = VoxEngine.createASR(ASRLanguage.ENGLISH_US);
  
    // Recognition result
	asr.addEventListener(ASREvents.Result, function (e) {        
        Net.httpRequestAsync("http://botservice.xyz/input?=" + encodeURIComponent(e.text))
            .then(function (result) {
              // assuming that webservice returns text that bot should say
              if (result.code == 200) {
                call.say(result.text, Language.US_ENGLISH_FEMALE);
                call.addEventListener(CallEvents.PlaybackFinished, function (e) {
                    call.removeEventListener(CallEvents.PlaybackFinished);
                    call.sendMediaTo(asr);
                });
              }
            }) 
            .catch(function (err) {
                Logger.write(err);
            });
	});
  
    // Speech captured - stop sending data to ASR
	asr.addEventListener(ASREvents.SpeechCaptured, function (e) {        
		call.stopMediaTo(asr);
	});

	call.say("Hi sir, how can I help you?", Language.US_ENGLISH_FEMALE);
    
	call.addEventListener(CallEvents.PlaybackFinished, function (e) {
        call.removeEventListener(CallEvents.PlaybackFinished);
		call.sendMediaTo(asr);
	});
}

That looks very interesting. Thank you for quick reply.