Создаём действие для Google Ассистента. Часть 2

Загрузка агента DialogFlow

Заполнение

Настройка среды локального развития

NPM обычно поставляется с Node.js. Вы можете найти инструкции по установке обоих здесь.

Установка библиотек CLI Firebase

npm -g install firebase-tools

Если установка не работает, возможно, вам придется изменить разрешения NPM. Подробности здесь.

firebase --version

firebase login

Выбор проекта в Firebase

firebase use PROJECT_ID

Установка дополнительных библиотек NPM

npm install --save rss-parser

npm install

firebase deploy --only functions

Реализация Webhook

app.intent('Welcome Intent', (conv) => { conv.ask("Hello World!"); });

Создание и выполнение пользовательских намерений

Созданение намерения

Наполнение намерения

app.intent('play_the_latest_episode', (conv) => { //1 let parser = new Parser() //2 return parser.parseURL( 'https://www.raywenderlich.com/feed/podcast').then((feed) => { //3 let latestCast = feed.items[0]; //4 conv.close(new SimpleResponse({ speech: "Here is the latest episode", text: "Here is the latest episode" })); //5 conv.close(new MediaObject({ name: latestCast.name, url: latestCast['enclosure']['url'], description: latestCast.description, icon: new Image({ url: 'https://koenig-media.raywenderlich.com/uploads/2016/02/Logo.png', alt: 'RW Logo', }), })); }).catch((err) => { // handle errors console.log(err) conv.close("An Error Occurred Parsing the RSS Feed, Try Again Later"); }); });

Исправление ошибок в консоли Firebase

Тестирование намерения

Обнаружение устройств

//1 if (!conv.surface.capabilities .has('actions.capability.SCREEN_OUTPUT')) { if(!conv.surface.capabilities .has('actions.capability.MEDIA_RESPONSE_AUDIO')) { conv.close("So sorry, this device does not support media playback!"); return; } //2 else { conv.ask("Greetings, Learner!"); //3 conv.ask(new Confirmation( "Would you like to play the latest episode?")); } }

Намерение play_latest_episode_confirmation в Dialogflow имеет событие actions_intent_confirmation. Событие - это еще один способ вызвать намерение с помощью предопределенных значений, таких как да или нет.

Обработка события подтверждения

app.intent('play_latest_episode_confirmation', (conv, input, confirmation) => { // 1 if (confirmation) { let parser = new Parser() return parser.parseURL( 'https://www.raywenderlich.com/feed/podcast').then((feed) => { let latestCast = feed.items[0]; conv.close(new SimpleResponse({ speech: "Here is the latest episode", text: "Here is the latest episode" })); conv.close(new MediaObject({ name: latestCast.name, url: latestCast['enclosure']['url'], description: latestCast.description, icon: new Image({ url: 'https://koenig-media.raywenderlich.com/uploads/2016/02/Logo.png', alt: 'RW Logo', }), })); }).catch((err) => { // handle errors console.log(err) conv.close("An Error Occurred Parsing the RSS Feed, Try Again Later"); }); //2 } else { conv.ask("You can say 'play latest episode' or 'play an episode about a subject' such as Kotlin or iOS."); } })

Использование списка опций

else { let parser = new Parser() return parser.parseURL( 'https://www.raywenderlich.com/feed/podcast').then((feed) => { let cast1 = feed.items[0]; let cast2 = feed.items[1]; let cast3 = feed.items[2]; conv.ask("Here are the three latest episodes!"); conv.ask(new List({ title: 'Latest Episodes', items: { [EPISODE_ONE]: { synonyms: ['Podcast 1'], title: cast1.title, description: cast1.description, image: new Image({ url: 'https://koenig-media.raywenderlich.com/uploads/2016/02/Logo.png', alt: 'RW Podcast Logo', }), }, [EPISODE_TWO]: { synonyms: ['Podcast 2'], title: cast2.title, description: cast2.description, image: new Image({ url: 'https://koenig-media.raywenderlich.com/uploads/2016/02/Logo.png', alt: 'RW Podcast Logo', }), }, [EPISODE_THREE]: { synonyms: ['Podcast 3'], title: cast3.title, description: cast3.description, image: new Image({ url: 'https://koenig-media.raywenderlich.com/uploads/2016/02/Logo.png', alt: 'RW Podcast Logo', }), }, }, })); conv.ask(new Suggestions([ 'Latest episode', 'Episode about Kotlin', 'Episode about iOS'])); }).catch((err) => { console.log(err) conv.close("An Error Occurred Parsing the RSS Feed, Try Again Later"); }); }

В Dialogflow обязательно добавьте actions_intent_option в качестве Intent и включите веб-хук.

app.intent('get_episode_option', (conv, input, option) => { let parser = new Parser() return parser.parseURL( 'https://www.raywenderlich.com/feed/podcast').then((feed) => { let cast1 = feed.items[0]; let cast2 = feed.items[1]; let cast3 = feed.items[2]; if(option === EPISODE_THREE){ conv.ask('Here is the third episode from the list'); conv.close(new MediaObject({ name: cast3.title, url: cast3['enclosure']['url'], description: cast3.description, icon: new Image({ url: 'https://koenig-media.raywenderlich.com/uploads/2016/02/Logo.png', alt: 'RW Logo', }), })); } else if(option === EPISODE_TWO){ conv.ask('Here is the 2nd episode from the list'); conv.close(new MediaObject({ name: cast2.title, url: cast2['enclosure']['url'], description: cast2.description, icon: new Image({ url: 'https://koenig-media.raywenderlich.com/uploads/2016/02/Logo.png', alt: 'RW Logo', }), })); } else{ conv.close(new SimpleResponse({ speech: "Here is the first episode from the list", text: "Here is the first episode from the list" })); conv.close(new MediaObject({ name: cast1.title, url: cast1['enclosure']['url'], description: cast1.description, icon: new Image({ url: 'https://koenig-media.raywenderlich.com/uploads/2016/02/Logo.png', alt: 'RW Logo', }), })); } }).catch((err) => { // handle errors console.log(err) conv.close("An Error Occurred Parsing the RSS Feed, Try Again Later"); }); });

Сущности и параметры

Объекты

Действия и параметры

Использование объекта и параметра

app.intent('play_an_episode_about', (conv, {Subject}) => { let parser = new Parser() return parser.parseURL( 'https://www.raywenderlich.com/feed/podcast').then((feed) => { let latestCast = feed.items[0]; console.log('subject ' + Subject); for(let i = 0; i < feed.items.length; i++){ let entry = feed.items[i]; if(entry.title.toUpperCase().indexOf(Subject.toUpperCase()) > -1){ latestCast = entry; break; } } conv.ask(latestCast.title); conv.close(new MediaObject({ name: latestCast.name, url: latestCast['enclosure']['url'], description: latestCast.description, icon: new Image({ url: 'https://koenig-media.raywenderlich.com/uploads/2016/02/Logo.png', alt: 'RW Logo', }), })); }).catch((err) => { console.log(err) conv.close("An Error Occurred Parsing the RSS Feed, Try Again Later"); }); });

Куда пойти отсюда?