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// This sample demonstrates handling intents from an Alexa skill using the Alexa Skills Kit SDK (v2).
// Please visit https://alexa.design/cookbook for additional examples on implementing slots, dialog management,
// session persistence, api calls, and more.
const Alexa = require('ask-sdk-core');
const data = [
'A year on Mercury is just 88 days long.',
'Despite being farther from the Sun, Venus experiences higher temperatures than Mercury.',
'On Mars, the Sun appears about half the size as it does on Earth.',
'Jupiter has the shortest day of all the planets.',
'The Sun is an almost perfect sphere.',
];
const GET_FACT_MESSAGE = "Here's your fact: ";
const LaunchRequestHandler = {
canHandle(handlerInput) {
return handlerInput.requestEnvelope.request.type === 'LaunchRequest';
},
handle(handlerInput) {
const speechText = 'Welcome, you can say Hello or Help. Which would you like to try?';
return handlerInput.responseBuilder
.speak(speechText)
.reprompt(speechText)
.getResponse();
}
};
const HelloWorldIntentHandler = {
canHandle(handlerInput) {
return handlerInput.requestEnvelope.request.type === 'IntentRequest'
&& handlerInput.requestEnvelope.request.intent.name === 'HelloWorldIntent';
},
handle(handlerInput) {
const speechText = 'Hello World!';
return handlerInput.responseBuilder
.speak(speechText)
//.reprompt('add a reprompt if you want to keep the session open for the user to respond')
.getResponse();
}
};
const GetNewFactIntentHandler = {
canHandle(handlerInput) {
return handlerInput.requestEnvelope.request.type === 'IntentRequest'
&& handlerInput.requestEnvelope.request.intent.name === 'GetNewFactIntent';
},
handle(handlerInput) {
const factArr = data;
const factIndex = Math.floor(Math.random() * factArr.length);
const randomFact = factArr[factIndex];
const speechOutput = GET_FACT_MESSAGE + randomFact;
const speechText = speechOutput;
return handlerInput.responseBuilder
.speak(speechText)
//.reprompt('add a reprompt if you want to keep the session open for the user to respond')
.getResponse();
}
};
const HelpIntentHandler = {
canHandle(handlerInput) {
return handlerInput.requestEnvelope.request.type === 'IntentRequest'
&& handlerInput.requestEnvelope.request.intent.name === 'AMAZON.HelpIntent';
},
handle(handlerInput) {
const speechText = 'You can say hello to me! How can I help?';
return handlerInput.responseBuilder
.speak(speechText)
.reprompt(speechText)
.getResponse();
}
};
const CancelAndStopIntentHandler = {
canHandle(handlerInput) {
return handlerInput.requestEnvelope.request.type === 'IntentRequest'
&& (handlerInput.requestEnvelope.request.intent.name === 'AMAZON.CancelIntent'
|| handlerInput.requestEnvelope.request.intent.name === 'AMAZON.StopIntent');
},
handle(handlerInput) {
const speechText = 'Goodbye!';
return handlerInput.responseBuilder
.speak(speechText)
.getResponse();
}
};
const SessionEndedRequestHandler = {
canHandle(handlerInput) {
return handlerInput.requestEnvelope.request.type === 'SessionEndedRequest';
},
handle(handlerInput) {
// Any cleanup logic goes here.
return handlerInput.responseBuilder.getResponse();
}
};
// The intent reflector is used for interaction model testing and debugging.
// It will simply repeat the intent the user said. You can create custom handlers
// for your intents by defining them above, then also adding them to the request
// handler chain below.
const IntentReflectorHandler = {
canHandle(handlerInput) {
return handlerInput.requestEnvelope.request.type === 'IntentRequest';
},
handle(handlerInput) {
const intentName = handlerInput.requestEnvelope.request.intent.name;
const speechText = `You just triggered ${intentName}`;
return handlerInput.responseBuilder
.speak(speechText)
//.reprompt('add a reprompt if you want to keep the session open for the user to respond')
.getResponse();
}
};
// Generic error handling to capture any syntax or routing errors. If you receive an error
// stating the request handler chain is not found, you have not implemented a handler for
// the intent being invoked or included it in the skill builder below.
const ErrorHandler = {
canHandle() {
return true;
},
handle(handlerInput, error) {
console.log(`~~~~ Error handled: ${error.message}`);
const speechText = `Sorry, I couldn't understand what you said. Please try again.`;
return handlerInput.responseBuilder
.speak(speechText)
.reprompt(speechText)
.getResponse();
}
};
// This handler acts as the entry point for your skill, routing all request and response
// payloads to the handlers above. Make sure any new handlers or interceptors you've
// defined are included below. The order matters - they're processed top to bottom.
exports.handler = Alexa.SkillBuilders.custom()
.addRequestHandlers(
LaunchRequestHandler,
HelloWorldIntentHandler,
GetNewFactIntentHandler,
HelpIntentHandler,
CancelAndStopIntentHandler,
SessionEndedRequestHandler,
IntentReflectorHandler) // make sure IntentReflectorHandler is last so it doesn't override your custom intent handlers
.addErrorHandlers(
ErrorHandler)
.lambda();
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