chatGPTをアレクサスキルで使う（ただし開発者向け）2023/2/26現在

/* *
 * 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 {Configuration, OpenAIApi} = require('openai');
const keys = require('./Keys');

const config = new Configuration({
    organization: "org-*************abc",
    apiKey: keys.OPEN_AI_KEY
});

const openai = new OpenAIApi(config);

const LaunchRequestHandler = {
    canHandle(handlerInput) {
        return Alexa.getRequestType(handlerInput.requestEnvelope) === 'LaunchRequest';
    },
    handle(handlerInput) {
        const speakOutput = 'チャットGPT3です。あなたの質問にお答えいたします。質問をどうぞ。';

        return handlerInput.responseBuilder
            .speak(speakOutput)
            .reprompt(speakOutput)
            .getResponse();
    }
};

const AskOpenAIIntentHandler = {
  canHandle(handlerInput) {
    return Alexa.getRequestType(handlerInput.requestEnvelope) === 'IntentRequest'
      && Alexa.getIntentName(handlerInput.requestEnvelope) === 'AskOpenAIIntent';
  },
  async handle(handlerInput) {
    const question = '以下の問に対し、口語の日本語で素早く丁寧に回答してください。'+
            Alexa.getSlotValue(handlerInput.requestEnvelope, 'question')+'。';

    const response = await openai.createCompletion({
        model: 'text-davinci-003',
        prompt: question,
        temperature: 0.2,
        max_tokens: 1500,
        top_p: 1,
        frequency_penalty: 0.0,
        presence_penalty: 0.0
    });

    const speakOutput = response.data.choices[0].text + 
        '次の質問をどうぞ。';

    return handlerInput.responseBuilder
      .speak(speakOutput)
      .reprompt("他に何かお手伝いできることはありますか？まもなく終了します。")
      .getResponse();
  }
};

const HelloWorldIntentHandler = {
    canHandle(handlerInput) {
        return Alexa.getRequestType(handlerInput.requestEnvelope) === 'IntentRequest'
            && Alexa.getIntentName(handlerInput.requestEnvelope) === 'HelloWorldIntent';
    },
    handle(handlerInput) {
        const speakOutput = 'Hello World!';

        return handlerInput.responseBuilder
            .speak(speakOutput)
            //.reprompt('add a reprompt if you want to keep the session open for the user to respond')
            .getResponse();
    }
};

const HelpIntentHandler = {
    canHandle(handlerInput) {
        return Alexa.getRequestType(handlerInput.requestEnvelope) === 'IntentRequest'
            && Alexa.getIntentName(handlerInput.requestEnvelope) === 'AMAZON.HelpIntent';
    },
    handle(handlerInput) {
        const speakOutput = 'なんでも質問してみてください。';

        return handlerInput.responseBuilder
            .speak(speakOutput)
            .reprompt(speakOutput)
            .getResponse();
    }
};

const CancelAndStopIntentHandler = {
    canHandle(handlerInput) {
        return Alexa.getRequestType(handlerInput.requestEnvelope) === 'IntentRequest'
            && (Alexa.getIntentName(handlerInput.requestEnvelope) === 'AMAZON.CancelIntent'
                || Alexa.getIntentName(handlerInput.requestEnvelope) === 'AMAZON.StopIntent');
    },
    handle(handlerInput) {
        const speakOutput = 'Goodbye!';

        return handlerInput.responseBuilder
            .speak(speakOutput)
            .getResponse();
    }
};
/* *
 * FallbackIntent triggers when a customer says something that doesn’t map to any intents in your skill
 * It must also be defined in the language model (if the locale supports it)
 * This handler can be safely added but will be ingnored in locales that do not support it yet 
 * */
const FallbackIntentHandler = {
    canHandle(handlerInput) {
        return Alexa.getRequestType(handlerInput.requestEnvelope) === 'IntentRequest'
            && Alexa.getIntentName(handlerInput.requestEnvelope) === 'AMAZON.FallbackIntent';
    },
    handle(handlerInput) {
        const speakOutput = '申し訳ありません。もう一度お試しください。何か他にお手伝いできることがありますか？';

        return handlerInput.responseBuilder
            .speak(speakOutput)
            .reprompt(speakOutput)
            .getResponse();
    }
};
/* *
 * SessionEndedRequest notifies that a session was ended. This handler will be triggered when a currently open 
 * session is closed for one of the following reasons: 1) The user says "exit" or "quit". 2) The user does not 
 * respond or says something that does not match an intent defined in your voice model. 3) An error occurs 
 * */
const SessionEndedRequestHandler = {
    canHandle(handlerInput) {
        return Alexa.getRequestType(handlerInput.requestEnvelope) === 'SessionEndedRequest';
    },
    handle(handlerInput) {
        console.log(`~~~~ Session ended: ${JSON.stringify(handlerInput.requestEnvelope)}`);
        // Any cleanup logic goes here.
        return handlerInput.responseBuilder.getResponse(); // notice we send an empty response
    }
};
/* *
 * 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 Alexa.getRequestType(handlerInput.requestEnvelope) === 'IntentRequest';
    },
    handle(handlerInput) {
        const intentName = Alexa.getIntentName(handlerInput.requestEnvelope);
        const speakOutput = `You just triggered ${intentName}`;

        return handlerInput.responseBuilder
            .speak(speakOutput)
            //.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) {
        const speakOutput = '申し訳ありません、おっしゃったことを実行するのに問題が発生しました。もう一度お試しいただけますか？何か他にお手伝いできることがありますか？';
        console.log(`~~~~ Error handled: ${JSON.stringify(error)}`);

        return handlerInput.responseBuilder
            .speak(speakOutput)
            .reprompt(speakOutput)
            .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,
        AskOpenAIIntentHandler,
        HelloWorldIntentHandler,
        HelpIntentHandler,
        CancelAndStopIntentHandler,
        FallbackIntentHandler,
        SessionEndedRequestHandler,
        IntentReflectorHandler)
    .addErrorHandlers(
        ErrorHandler)
    .withCustomUserAgent('sample/hello-world/v1.2')
    .lambda();