index.js

/* eslint-disable  func-names */
/* eslint-disable  no-console */

const Alexa = require('ask-sdk');

const LaunchRequestHandler = {
  canHandle(handlerInput) {
    const request = handlerInput.requestEnvelope.request;
    return request.type === 'LaunchRequest';
  },
  handle(handlerInput) {
 
    const speechOutput = 'Welcome to Magic Word! Lets get started. Do you want sweets?';

    return handlerInput.responseBuilder
      .speak(speechOutput)
      .reprompt('I did not hear that. ' + speechOutput)
      .getResponse();
  },
};

const AnswerIntentHandler = {
  canHandle(handlerInput) {
    const request = handlerInput.requestEnvelope.request;
    return request.type === 'IntentRequest'
      && request.intent.name === 'AnswerIntent';
  },
  handle(handlerInput) {
    
    const request = handlerInput.requestEnvelope.request;
    const sessionAttributes = handlerInput.attributesManager.getSessionAttributes();
    
    
    if(!sessionAttributes.counter) {
      sessionAttributes.counter = 0;
    }
    
    let speechOutput = '';
    const courtesyWord = request.intent.slots.courtesyWord.value;
    
    if(courtesyWord) {
      sessionAttributes.counter += 1;
      speechOutput = `<audio src='soundbank://soundlibrary/musical/amzn_sfx_trumpet_bugle_03'/><voice name="Emma"><lang xml:lang="en-GB">Great, you used ${courtesyWord}. You are <emphasis level="strong">well</emphasis> on your way in becoming polite.</lang></voice>`
    } else {
      speechOutput = `<audio src='soundbank://soundlibrary/ui/gameshow/amzn_ui_sfx_gameshow_negative_response_01'/> What's the magic word?`
    }
    
    handlerInput.attributesManager.setSessionAttributes(sessionAttributes);
    
    return handlerInput.responseBuilder
      .speak(speechOutput)
      .reprompt(speechOutput)
      .getResponse();
  },
};

const HelpHandler = {
  canHandle(handlerInput) {
    const request = handlerInput.requestEnvelope.request;
    return request.type === 'IntentRequest'
      && request.intent.name === 'AMAZON.HelpIntent';
  },
  handle(handlerInput) {
    return handlerInput.responseBuilder
      .speak(HELP_MESSAGE)
      .reprompt(HELP_REPROMPT)
      .getResponse();
  },
};

const ExitHandler = {
  canHandle(handlerInput) {
    const request = handlerInput.requestEnvelope.request;
    return request.type === 'IntentRequest'
      && (request.intent.name === 'AMAZON.CancelIntent'
        || request.intent.name === 'AMAZON.StopIntent');
  },
  handle(handlerInput) {
    const speechOutput= 'Goodbye';
    return handlerInput.responseBuilder
      .speak(speechOutput)
      .getResponse();
  },
};

const SessionEndedRequestHandler = {
  canHandle(handlerInput) {
    const request = handlerInput.requestEnvelope.request;
    return request.type === 'SessionEndedRequest';
  },
  handle(handlerInput) {
    console.log(`Session ended with reason: ${handlerInput.requestEnvelope.request.reason}`);

    return handlerInput.responseBuilder.getResponse();
  },
};

const ErrorHandler = {
  canHandle() {
    return true;
  },
  handle(handlerInput, error) {
    console.log(`Error handled: ${error.message}`);

    return handlerInput.responseBuilder
      .speak('Sorry, an error occurred.')
      .reprompt('Sorry, an error occurred.')
      .getResponse();
  },
};

const skillBuilder = Alexa.SkillBuilders.standard();

exports.handler = skillBuilder
  .addRequestHandlers(
    LaunchRequestHandler,
    AnswerIntentHandler,
    HelpHandler,
    ExitHandler,
    SessionEndedRequestHandler
  )
  .addErrorHandlers(ErrorHandler)
  .lambda();

interaction-model.json

{
    "interactionModel": {
        "languageModel": {
            "invocationName": "magic word",
            "intents": [
                {
                    "name": "AMAZON.FallbackIntent",
                    "samples": []
                },
                {
                    "name": "AMAZON.CancelIntent",
                    "samples": []
                },
                {
                    "name": "AMAZON.HelpIntent",
                    "samples": []
                },
                {
                    "name": "AMAZON.StopIntent",
                    "samples": []
                },
                {
                    "name": "AMAZON.NavigateHomeIntent",
                    "samples": []
                },
                {
                    "name": "AnswerIntent",
                    "slots": [
                        {
                            "name": "courtesyWord",
                            "type": "COURTESY_WORDS"
                        }
                    ],
                    "samples": [
                        "yeah now",
                        "yeah now {courtesyWord}",
                        "forget it {courtesyWord}",
                        "forget it",
                        "you suck",
                        "yuck",
                        "no way",
                        "thats very kind of you {courtesyWord}",
                        "maybe {courtesyWord}",
                        "yes",
                        "no",
                        "maybe",
                        "{courtesyWord} no",
                        "{courtesyWord} yes",
                        "great {courtesyWord}",
                        "no {courtesyWord}",
                        "yes {courtesyWord}"
                    ]
                }
            ],
            "types": [
                {
                    "name": "COURTESY_WORDS",
                    "values": [
                        {
                            "name": {
                                "value": "many thanks"
                            }
                        },
                        {
                            "name": {
                                "value": "ta"
                            }
                        },
                        {
                            "name": {
                                "value": "cheers"
                            }
                        },
                        {
                            "name": {
                                "value": "thank you",
                                "synonyms": [
                                    "thankee",
                                    "thank ya",
                                    "thanks"
                                ]
                            }
                        },
                        {
                            "name": {
                                "value": "please"
                            }
                        }
                    ]
                }
            ]
        }
    }
}