Alexaのスキルを実機で試そう

リスト1：コード例1: interface.json

    "interactionModel": {
        "languageModel": {
            "invocationName": "今どこスキル",
            "intents": [
                {
                    "name": "AMAZON.CancelIntent",
                    "samples": []
                },
                {
                    "name": "AMAZON.HelpIntent",
                    "samples": []
                },
                {
                    "name": "AMAZON.StopIntent",
                    "samples": []
                },
                {
                    "name": "WhereAreYouIntent",
                    "slots": [],
                    "samples": [
                        "いまどこにいるか教えて"
                    ]
                }
            ],
            "types": []
        }
    }
}

リスト2：コード例2: index.js

/* eslint-disable  func-names */
/* eslint quote-props: ["error", "consistent"]*/

'use strict';
const Alexa = require('alexa-sdk');
const Https = require('https');

//=============================================================================
// 定数定義
//=============================================================================
const APP_ID = 'amzn1.ask.skill.b884ff75-6598-40b6-93c5-5b378e5a1733';
const SKILL_NAME = '今どこスキル';
const HELP_MESSAGE = '現在のデバイスの場所をお知らせします';
const HELP_REPROMPT = '何をお調べしますか';
const STOP_MESSAGE = '終了します';

//=============================================================================
// 所在地APIを呼び出す関数
//=============================================================================
function getAddress(deviceId, consentToken, apiEndpoint) {
    const hostname = apiEndpoint.replace(/^https?:＼/＼//i, "");
    // 国コードと郵便番号を取得する場合のエンドポイント。
    const path = `/v1/devices/${deviceId}/settings/address/countryAndPostalCode`;
    // 全ての住所情報を取得する場合のエンドポイント
    // const path = `/v1/devices/${deviceId}/settings/address`;
    const requestOptions = {
        'hostname': hostname,
        'path': path,
        'method': 'GET',
        'headers': {
            'Authorization': 'Bearer ' + consentToken
        }
    };

    // APIに非同期でHTTPS接続をする。完了時にresolve, 失敗時にrejectが呼び出される
    return new Promise((resolve, reject) => {
        Https.get(requestOptions, (response) => {
            console.log("StatusCode: " + response.statusCode);
            response.on('data', (data) => {
                console.log(data);
                let responseObject = JSON.parse(data);
                const result = {
                    statusCode: response.statusCode,
                    responseObject: responseObject
                };
                resolve(result);
            });
        }).on('error', (e) => {
            reject();
        });
    });

}

//=============================================================================
// ハンドラー
//=============================================================================

const handlers = {
    'LaunchRequest': function () {
        this.emit('WhereAreYouIntent');
    },
    'WhereAreYouIntent': function () {
        const deviceId = this.event.context.System.device.deviceId;
        const consentToken = this.event.context.System.user.permissions.consentToken;
        const apiEndpoint = this.event.context.System.apiEndpoint;

        console.log("deviceId: " + deviceId);
        console.log("consentToken: " + consentToken);
        console.log("apiEndpoint: " + apiEndpoint);

        getAddress(deviceId, consentToken, apiEndpoint).then((result) => {
            switch (result.statusCode) {
                case 200:
                    // リザルトコードが200の時だけ戻り値の解析を行う

                    // 郵便番号を取得する。
                    const location = result.responseObject['postalCode'];
                    const speechOutput = `郵便番号は${location}です`;
                    console.log("speechOutput: " + speechOutput);
                    this.response.speak(speechOutput);
                    break;
                case 204:
                    this.response.speak('所在地情報がセットされていません');
                    break;
                case 403:
                    this.response.speak('所在地情報の取得は許可されていません');
                    break;
                default:
                    this.response.speak('所在地情報の取得に失敗しました');
            }
            this.emit(':responseReady');
        }).catch(() => {
            this.response.speak('所在地APIとの接続に失敗しました');
            this.emit(':responseReady');
        });
    },
    'AMAZON.HelpIntent': function () {
        const speechOutput = HELP_MESSAGE;
        const reprompt = HELP_REPROMPT;

        this.response.speak(speechOutput).listen(reprompt);
        this.emit(':responseReady');
    },
    'AMAZON.CancelIntent': function () {
        this.response.speak(STOP_MESSAGE);
        this.emit(':responseReady');
    },
    'AMAZON.StopIntent': function () {
        this.response.speak(STOP_MESSAGE);
        this.emit(':responseReady');
    },
    'SessionEndedRequest': function () {
        this.emit(':responseReady');
    },
};

exports.handler = function (event, context, callback) {
    const alexa = Alexa.handler(event, context, callback);
    alexa.APP_ID = APP_ID;
    alexa.registerHandlers(handlers);
    alexa.execute();
};