การตอบกลับการเลือกภาพ (Dialogflow)

@ForIntent("List")
public ActionResponse list(ActionRequest request) {
  ResponseBuilder responseBuilder = getResponseBuilder(request);
  if (!request.hasCapability(Capability.SCREEN_OUTPUT.getValue())) {
    return responseBuilder
        .add("Sorry, try ths on a screen device or select the phone surface in the simulator.")
        .add("Which response would you like to see next?")
        .build();
  }

  responseBuilder
      .add("This is a list example.")
      .add(
          new SelectionList()
              .setTitle("List Title")
              .setItems(
                  Arrays.asList(
                      new ListSelectListItem()
                          .setTitle("Title of First List Item")
                          .setDescription("This is a description of a list item.")
                          .setImage(
                              new Image()
                                  .setUrl(
                                      "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                  .setAccessibilityText("Image alternate text"))
                          .setOptionInfo(
                              new OptionInfo()
                                  .setSynonyms(
                                      Arrays.asList("synonym 1", "synonym 2", "synonym 3"))
                                  .setKey("SELECTION_KEY_ONE")),
                      new ListSelectListItem()
                          .setTitle("Google Home")
                          .setDescription(
                              "Google Home is a voice-activated speaker powered by the Google Assistant.")
                          .setImage(
                              new Image()
                                  .setUrl(
                                      "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                  .setAccessibilityText("Google Home"))
                          .setOptionInfo(
                              new OptionInfo()
                                  .setSynonyms(
                                      Arrays.asList(
                                          "Google Home Assistant",
                                          "Assistant on the Google Home"))
                                  .setKey("SELECTION_KEY_GOOGLE_HOME")),
                      new ListSelectListItem()
                          .setTitle("Google Pixel")
                          .setDescription("Pixel. Phone by Google.")
                          .setImage(
                              new Image()
                                  .setUrl(
                                      "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                  .setAccessibilityText("Google Pixel"))
                          .setOptionInfo(
                              new OptionInfo()
                                  .setSynonyms(
                                      Arrays.asList("Google Pixel XL", "Pixel", "Pixel XL"))
                                  .setKey("SELECTION_KEY_GOOGLE_PIXEL")))));
  return responseBuilder.build();
}
MyActionsApp.java

if (!conv.screen) {
  conv.ask('Sorry, try this on a screen device or select the ' +
    'phone surface in the simulator.');
  return;
}

conv.ask('This is a list example.');
// Create a list
conv.ask(new List({
  title: 'List Title',
  items: {
    // Add the first item to the list
    'SELECTION_KEY_ONE': {
      synonyms: [
        'synonym 1',
        'synonym 2',
        'synonym 3',
      ],
      title: 'Title of First List Item',
      description: 'This is a description of a list item.',
      image: new Image({
        url: 'https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png',
        alt: 'Image alternate text',
      }),
    },
    // Add the second item to the list
    'SELECTION_KEY_GOOGLE_HOME': {
      synonyms: [
        'Google Home Assistant',
        'Assistant on the Google Home',
    ],
      title: 'Google Home',
      description: 'Google Home is a voice-activated speaker powered by ' +
        'the Google Assistant.',
      image: new Image({
        url: 'https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png',
        alt: 'Google Home',
      }),
    },
    // Add the third item to the list
    'SELECTION_KEY_GOOGLE_PIXEL': {
      synonyms: [
        'Google Pixel XL',
        'Pixel',
        'Pixel XL',
      ],
      title: 'Google Pixel',
      description: 'Pixel. Phone by Google.',
      image: new Image({
        url: 'https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png',
        alt: 'Google Pixel',
      }),
    },
  },
}));
index.js

ResponseBuilder responseBuilder = getResponseBuilder(request);
if (!request.hasCapability(Capability.SCREEN_OUTPUT.getValue())) {
  return responseBuilder
      .add("Sorry, try ths on a screen device or select the phone surface in the simulator.")
      .add("Which response would you like to see next?")
      .build();
}

responseBuilder
    .add("This is a list example.")
    .add(
        new SelectionList()
            .setTitle("List Title")
            .setItems(
                Arrays.asList(
                    new ListSelectListItem()
                        .setTitle("Title of First List Item")
                        .setDescription("This is a description of a list item.")
                        .setImage(
                            new Image()
                                .setUrl(
                                    "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                .setAccessibilityText("Image alternate text"))
                        .setOptionInfo(
                            new OptionInfo()
                                .setSynonyms(
                                    Arrays.asList("synonym 1", "synonym 2", "synonym 3"))
                                .setKey("SELECTION_KEY_ONE")),
                    new ListSelectListItem()
                        .setTitle("Google Home")
                        .setDescription(
                            "Google Home is a voice-activated speaker powered by the Google Assistant.")
                        .setImage(
                            new Image()
                                .setUrl(
                                    "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                .setAccessibilityText("Google Home"))
                        .setOptionInfo(
                            new OptionInfo()
                                .setSynonyms(
                                    Arrays.asList(
                                        "Google Home Assistant",
                                        "Assistant on the Google Home"))
                                .setKey("SELECTION_KEY_GOOGLE_HOME")),
                    new ListSelectListItem()
                        .setTitle("Google Pixel")
                        .setDescription("Pixel. Phone by Google.")
                        .setImage(
                            new Image()
                                .setUrl(
                                    "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                .setAccessibilityText("Google Pixel"))
                        .setOptionInfo(
                            new OptionInfo()
                                .setSynonyms(
                                    Arrays.asList("Google Pixel XL", "Pixel", "Pixel XL"))
                                .setKey("SELECTION_KEY_GOOGLE_PIXEL")))));
return responseBuilder.build();
MyActionsApp.java

{
  "payload": {
    "google": {
      "expectUserResponse": true,
      "systemIntent": {
        "intent": "actions.intent.OPTION",
        "data": {
          "@type": "type.googleapis.com/google.actions.v2.OptionValueSpec",
          "listSelect": {
            "title": "List Title",
            "items": [
              {
                "optionInfo": {
                  "key": "SELECTION_KEY_ONE",
                  "synonyms": [
                    "synonym 1",
                    "synonym 2",
                    "synonym 3"
                  ]
                },
                "description": "This is a description of a list item.",
                "image": {
                  "url": "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png",
                  "accessibilityText": "Image alternate text"
                },
                "title": "Title of First List Item"
              },
              {
                "optionInfo": {
                  "key": "SELECTION_KEY_GOOGLE_HOME",
                  "synonyms": [
                    "Google Home Assistant",
                    "Assistant on the Google Home"
                  ]
                },
                "description": "Google Home is a voice-activated speaker powered by the Google Assistant.",
                "image": {
                  "url": "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png",
                  "accessibilityText": "Google Home"
                },
                "title": "Google Home"
              },
              {
                "optionInfo": {
                  "key": "SELECTION_KEY_GOOGLE_PIXEL",
                  "synonyms": [
                    "Google Pixel XL",
                    "Pixel",
                    "Pixel XL"
                  ]
                },
                "description": "Pixel. Phone by Google.",
                "image": {
                  "url": "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png",
                  "accessibilityText": "Google Pixel"
                },
                "title": "Google Pixel"
              }
            ]
          }
        }
      },
      "richResponse": {
        "items": [
          {
            "simpleResponse": {
              "textToSpeech": "This is a list example."
            }
          }
        ]
      }
    }
  }
}

{
  "expectUserResponse": true,
  "expectedInputs": [
    {
      "possibleIntents": [
        {
          "intent": "actions.intent.OPTION",
          "inputValueData": {
            "@type": "type.googleapis.com/google.actions.v2.OptionValueSpec",
            "listSelect": {
              "title": "List Title",
              "items": [
                {
                  "optionInfo": {
                    "key": "SELECTION_KEY_ONE",
                    "synonyms": [
                      "synonym 1",
                      "synonym 2",
                      "synonym 3"
                    ]
                  },
                  "description": "This is a description of a list item.",
                  "image": {
                    "url": "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png",
                    "accessibilityText": "Image alternate text"
                  },
                  "title": "Title of First List Item"
                },
                {
                  "optionInfo": {
                    "key": "SELECTION_KEY_GOOGLE_HOME",
                    "synonyms": [
                      "Google Home Assistant",
                      "Assistant on the Google Home"
                    ]
                  },
                  "description": "Google Home is a voice-activated speaker powered by the Google Assistant.",
                  "image": {
                    "url": "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png",
                    "accessibilityText": "Google Home"
                  },
                  "title": "Google Home"
                },
                {
                  "optionInfo": {
                    "key": "SELECTION_KEY_GOOGLE_PIXEL",
                    "synonyms": [
                      "Google Pixel XL",
                      "Pixel",
                      "Pixel XL"
                    ]
                  },
                  "description": "Pixel. Phone by Google.",
                  "image": {
                    "url": "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png",
                    "accessibilityText": "Google Pixel"
                  },
                  "title": "Google Pixel"
                }
              ]
            }
          }
        }
      ],
      "inputPrompt": {
        "richInitialPrompt": {
          "items": [
            {
              "simpleResponse": {
                "textToSpeech": "This is a list example."
              }
            }
          ]
        }
      }
    }
  ]
}

@ForIntent("List - OPTION")
public ActionResponse listSelected(ActionRequest request) {
  ResponseBuilder responseBuilder = getResponseBuilder(request);
  String selectedItem = request.getSelectedOption();
  String response;

  if (selectedItem.equals("SELECTION_KEY_ONE")) {
    response = "You selected the first item";
  } else if (selectedItem.equals("SELECTION_KEY_GOOGLE_HOME")) {
    response = "You selected the Google Home!";
  } else if (selectedItem.equals("SELECTION_KEY_GOOGLE_PIXEL")) {
    response = "You selected the Google Pixel!";
  } else {
    response = "You did not select a valid item";
  }
  return responseBuilder.add(response).add("Which response would you like to see next?").build();
}
MyActionsApp.java

app.intent('actions.intent.OPTION', (conv, params, option) => {
  const SELECTED_ITEM_RESPONSES = {
    'SELECTION_KEY_ONE': 'You selected the first item',
    'SELECTION_KEY_GOOGLE_HOME': 'You selected the Google Home!',
    'SELECTION_KEY_GOOGLE_PIXEL': 'You selected the Google Pixel!',
  };
  conv.ask(SELECTED_ITEM_RESPONSES[option]);
  conv.ask('Which response would you like to see next?');
});
index.js

  @ForIntent("actions.intent.OPTION")
  public ActionResponse listSelected(ActionRequest request) {
    ResponseBuilder responseBuilder = getResponseBuilder(request);
    String selectedItem = request.getSelectedOption();
    String response;

    if (selectedItem.equals("SELECTION_KEY_ONE")) {
      response = "You selected the first item";
    } else if (selectedItem.equals("SELECTION_KEY_GOOGLE_HOME")) {
      response = "You selected the Google Home!";
    } else if (selectedItem.equals("SELECTION_KEY_GOOGLE_PIXEL")) {
      response = "You selected the Google Pixel!";
    } else {
      response = "You did not select a valid item";
    }
    return responseBuilder.add(response).add("Which response would you like to see next?").build();
  }

  public ActionResponse carousel(ActionRequest request) {
    ResponseBuilder responseBuilder = getResponseBuilder(request);
    if (!request.hasCapability(Capability.SCREEN_OUTPUT.getValue())) {
      return responseBuilder
          .add("Sorry, try ths on a screen device or select the phone surface in the simulator.")
          .add("Which response would you like to see next?")
          .build();
    }

    responseBuilder
        .add("This is a carousel example.")
        .add(
            new SelectionCarousel()
                .setItems(
                    Arrays.asList(
                        new CarouselSelectCarouselItem()
                            .setTitle("Title of First List Item")
                            .setDescription("This is a description of a list item.")
                            .setImage(
                                new Image()
                                    .setUrl(
                                        "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                    .setAccessibilityText("Image alternate text"))
                            .setOptionInfo(
                                new OptionInfo()
                                    .setSynonyms(
                                        Arrays.asList("synonym 1", "synonym 2", "synonym 3"))
                                    .setKey("SELECTION_KEY_ONE")),
                        new CarouselSelectCarouselItem()
                            .setTitle("Google Home")
                            .setDescription(
                                "Google Home is a voice-activated speaker powered by the Google Assistant.")
                            .setImage(
                                new Image()
                                    .setUrl(
                                        "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                    .setAccessibilityText("Google Home"))
                            .setOptionInfo(
                                new OptionInfo()
                                    .setSynonyms(
                                        Arrays.asList(
                                            "Google Home Assistant",
                                            "Assistant on the Google Home"))
                                    .setKey("SELECTION_KEY_GOOGLE_HOME")),
                        new CarouselSelectCarouselItem()
                            .setTitle("Google Pixel")
                            .setDescription("Pixel. Phone by Google.")
                            .setImage(
                                new Image()
                                    .setUrl(
                                        "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                    .setAccessibilityText("Google Pixel"))
                            .setOptionInfo(
                                new OptionInfo()
                                    .setSynonyms(
                                        Arrays.asList("Google Pixel XL", "Pixel", "Pixel XL"))
                                    .setKey("SELECTION_KEY_GOOGLE_PIXEL")))));
    return responseBuilder.build();
  }
}
MyActionsApp.java

{
  "responseId": "5d7732d1-d22d-4a0e-ad34-8bc0a7fde20c-21947381",
  "queryResult": {
    "queryText": "actions_intent_OPTION",
    "action": "List.List-custom",
    "parameters": {},
    "allRequiredParamsPresent": true,
    "fulfillmentText": "Webhook failed for intent: List - OPTION",
    "fulfillmentMessages": [
      {
        "text": {
          "text": [
            "Webhook failed for intent: List - OPTION"
          ]
        }
      }
    ],
    "outputContexts": [
      {
        "name": "projects/df-responses-kohler/agent/sessions/ABwppHHsebncupHK11oKhsCTgyH96GRNYH-xpeeMTqb-cvOxbd67QenbRlZM4bGAIB8_KXdTfI7-7lYVKN1ovAhCaA/contexts/actions_capability_screen_output"
      },
      {
        "name": "projects/df-responses-kohler/agent/sessions/ABwppHHsebncupHK11oKhsCTgyH96GRNYH-xpeeMTqb-cvOxbd67QenbRlZM4bGAIB8_KXdTfI7-7lYVKN1ovAhCaA/contexts/actions_capability_account_linking"
      },
      {
        "name": "projects/df-responses-kohler/agent/sessions/ABwppHHsebncupHK11oKhsCTgyH96GRNYH-xpeeMTqb-cvOxbd67QenbRlZM4bGAIB8_KXdTfI7-7lYVKN1ovAhCaA/contexts/actions_capability_media_response_audio"
      },
      {
        "name": "projects/df-responses-kohler/agent/sessions/ABwppHHsebncupHK11oKhsCTgyH96GRNYH-xpeeMTqb-cvOxbd67QenbRlZM4bGAIB8_KXdTfI7-7lYVKN1ovAhCaA/contexts/actions_capability_audio_output"
      },
      {
        "name": "projects/df-responses-kohler/agent/sessions/ABwppHHsebncupHK11oKhsCTgyH96GRNYH-xpeeMTqb-cvOxbd67QenbRlZM4bGAIB8_KXdTfI7-7lYVKN1ovAhCaA/contexts/actions_capability_web_browser"
      },
      {
        "name": "projects/df-responses-kohler/agent/sessions/ABwppHHsebncupHK11oKhsCTgyH96GRNYH-xpeeMTqb-cvOxbd67QenbRlZM4bGAIB8_KXdTfI7-7lYVKN1ovAhCaA/contexts/google_assistant_input_type_touch"
      },
      {
        "name": "projects/df-responses-kohler/agent/sessions/ABwppHHsebncupHK11oKhsCTgyH96GRNYH-xpeeMTqb-cvOxbd67QenbRlZM4bGAIB8_KXdTfI7-7lYVKN1ovAhCaA/contexts/list-followup",
        "lifespanCount": 1
      },
      {
        "name": "projects/df-responses-kohler/agent/sessions/ABwppHHsebncupHK11oKhsCTgyH96GRNYH-xpeeMTqb-cvOxbd67QenbRlZM4bGAIB8_KXdTfI7-7lYVKN1ovAhCaA/contexts/actions_intent_option",
        "parameters": {
          "OPTION": "SELECTION_KEY_GOOGLE_PIXEL",
          "text": "Google Pixel"
        }
      }
    ],
    "intent": {
      "name": "projects/df-responses-kohler/agent/intents/88904350-193e-4472-a2de-977eb5d9e26e",
      "displayName": "List - OPTION"
    },
    "intentDetectionConfidence": 1,
    "languageCode": "en"
  },
  "originalDetectIntentRequest": {
    "source": "google",
    "version": "2",
    "payload": {
      "user": {
        "locale": "en-US",
        "lastSeen": "2019-08-04T23:56:32Z",
        "userVerificationStatus": "VERIFIED"
      },
      "conversation": {
        "conversationId": "ABwppHHsebncupHK11oKhsCTgyH96GRNYH-xpeeMTqb-cvOxbd67QenbRlZM4bGAIB8_KXdTfI7-7lYVKN1ovAhCaA",
        "type": "ACTIVE",
        "conversationToken": "[\"list-followup\"]"
      },
      "inputs": [
        {
          "intent": "actions.intent.OPTION",
          "rawInputs": [
            {
              "inputType": "TOUCH",
              "query": "Google Pixel"
            }
          ],
          "arguments": [
            {
              "name": "OPTION",
              "textValue": "SELECTION_KEY_GOOGLE_PIXEL"
            },
            {
              "name": "text",
              "rawText": "Google Pixel",
              "textValue": "Google Pixel"
            }
          ]
        }
      ],
      "surface": {
        "capabilities": [
          {
            "name": "actions.capability.SCREEN_OUTPUT"
          },
          {
            "name": "actions.capability.ACCOUNT_LINKING"
          },
          {
            "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
          },
          {
            "name": "actions.capability.AUDIO_OUTPUT"
          },
          {
            "name": "actions.capability.WEB_BROWSER"
          }
        ]
      },
      "isInSandbox": true,
      "availableSurfaces": [
        {
          "capabilities": [
            {
              "name": "actions.capability.WEB_BROWSER"
            },
            {
              "name": "actions.capability.SCREEN_OUTPUT"
            },
            {
              "name": "actions.capability.AUDIO_OUTPUT"
            }
          ]
        }
      ],
      "requestType": "SIMULATOR"
    }
  },
  "session": "projects/df-responses-kohler/agent/sessions/ABwppHHsebncupHK11oKhsCTgyH96GRNYH-xpeeMTqb-cvOxbd67QenbRlZM4bGAIB8_KXdTfI7-7lYVKN1ovAhCaA"
}

{
  "user": {
    "locale": "en-US",
    "lastSeen": "2019-08-06T07:37:53Z",
    "userVerificationStatus": "VERIFIED"
  },
  "conversation": {
    "conversationId": "ABwppHGcqunXh1M6IE0lu2sVqXdpJfdpC5FWMkMSXQskK1nzb4IkSUSRqQzoEr0Ly0z_G3mwyZlk5rFtd1w",
    "type": "NEW"
  },
  "inputs": [
    {
      "intent": "actions.intent.OPTION",
      "rawInputs": [
        {
          "inputType": "TOUCH",
          "query": "Google Home"
        }
      ],
      "arguments": [
        {
          "name": "OPTION",
          "textValue": "SELECTION_KEY_GOOGLE_HOME"
        },
        {
          "name": "text",
          "rawText": "Google Home",
          "textValue": "Google Home"
        }
      ]
    }
  ],
  "surface": {
    "capabilities": [
      {
        "name": "actions.capability.AUDIO_OUTPUT"
      },
      {
        "name": "actions.capability.MEDIA_RESPONSE_AUDIO"
      },
      {
        "name": "actions.capability.ACCOUNT_LINKING"
      },
      {
        "name": "actions.capability.SCREEN_OUTPUT"
      },
      {
        "name": "actions.capability.WEB_BROWSER"
      }
    ]
  },
  "isInSandbox": true,
  "availableSurfaces": [
    {
      "capabilities": [
        {
          "name": "actions.capability.WEB_BROWSER"
        },
        {
          "name": "actions.capability.AUDIO_OUTPUT"
        },
        {
          "name": "actions.capability.SCREEN_OUTPUT"
        }
      ]
    }
  ],
  "requestType": "SIMULATOR"
}

@ForIntent("Carousel")
public ActionResponse carousel(ActionRequest request) {
  ResponseBuilder responseBuilder = getResponseBuilder(request);
  if (!request.hasCapability(Capability.SCREEN_OUTPUT.getValue())) {
    return responseBuilder
        .add("Sorry, try ths on a screen device or select the phone surface in the simulator.")
        .add("Which response would you like to see next?")
        .build();
  }

  responseBuilder
      .add("This is a carousel example.")
      .add(
          new SelectionCarousel()
              .setItems(
                  Arrays.asList(
                      new CarouselSelectCarouselItem()
                          .setTitle("Title of First List Item")
                          .setDescription("This is a description of a list item.")
                          .setImage(
                              new Image()
                                  .setUrl(
                                      "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                  .setAccessibilityText("Image alternate text"))
                          .setOptionInfo(
                              new OptionInfo()
                                  .setSynonyms(
                                      Arrays.asList("synonym 1", "synonym 2", "synonym 3"))
                                  .setKey("SELECTION_KEY_ONE")),
                      new CarouselSelectCarouselItem()
                          .setTitle("Google Home")
                          .setDescription(
                              "Google Home is a voice-activated speaker powered by the Google Assistant.")
                          .setImage(
                              new Image()
                                  .setUrl(
                                      "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                  .setAccessibilityText("Google Home"))
                          .setOptionInfo(
                              new OptionInfo()
                                  .setSynonyms(
                                      Arrays.asList(
                                          "Google Home Assistant",
                                          "Assistant on the Google Home"))
                                  .setKey("SELECTION_KEY_GOOGLE_HOME")),
                      new CarouselSelectCarouselItem()
                          .setTitle("Google Pixel")
                          .setDescription("Pixel. Phone by Google.")
                          .setImage(
                              new Image()
                                  .setUrl(
                                      "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                  .setAccessibilityText("Google Pixel"))
                          .setOptionInfo(
                              new OptionInfo()
                                  .setSynonyms(
                                      Arrays.asList("Google Pixel XL", "Pixel", "Pixel XL"))
                                  .setKey("SELECTION_KEY_GOOGLE_PIXEL")))));
  return responseBuilder.build();
}
MyActionsApp.java

if (!conv.screen) {
  conv.ask('Sorry, try this on a screen device or select the ' +
    'phone surface in the simulator.');
  return;
}

conv.ask('This is a carousel example.');
// Create a carousel
conv.ask(new Carousel({
  title: 'Carousel Title',
  items: {
    // Add the first item to the carousel
    'SELECTION_KEY_ONE': {
      synonyms: [
        'synonym 1',
        'synonym 2',
        'synonym 3',
      ],
      title: 'Title of First Carousel Item',
      description: 'This is a description of a carousel item.',
      image: new Image({
        url: 'https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png',
        alt: 'Image alternate text',
      }),
    },
    // Add the second item to the carousel
    'SELECTION_KEY_GOOGLE_HOME': {
      synonyms: [
        'Google Home Assistant',
        'Assistant on the Google Home',
    ],
      title: 'Google Home',
      description: 'Google Home is a voice-activated speaker powered by ' +
        'the Google Assistant.',
      image: new Image({
        url: 'https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png',
        alt: 'Google Home',
      }),
    },
    // Add the third item to the carousel
    'SELECTION_KEY_GOOGLE_PIXEL': {
      synonyms: [
        'Google Pixel XL',
        'Pixel',
        'Pixel XL',
      ],
      title: 'Google Pixel',
      description: 'Pixel. Phone by Google.',
      image: new Image({
        url: 'https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png',
        alt: 'Google Pixel',
      }),
    },
  },
}));
index.js

ResponseBuilder responseBuilder = getResponseBuilder(request);
if (!request.hasCapability(Capability.SCREEN_OUTPUT.getValue())) {
  return responseBuilder
      .add("Sorry, try ths on a screen device or select the phone surface in the simulator.")
      .add("Which response would you like to see next?")
      .build();
}

responseBuilder
    .add("This is a carousel example.")
    .add(
        new SelectionCarousel()
            .setItems(
                Arrays.asList(
                    new CarouselSelectCarouselItem()
                        .setTitle("Title of First List Item")
                        .setDescription("This is a description of a list item.")
                        .setImage(
                            new Image()
                                .setUrl(
                                    "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                .setAccessibilityText("Image alternate text"))
                        .setOptionInfo(
                            new OptionInfo()
                                .setSynonyms(
                                    Arrays.asList("synonym 1", "synonym 2", "synonym 3"))
                                .setKey("SELECTION_KEY_ONE")),
                    new CarouselSelectCarouselItem()
                        .setTitle("Google Home")
                        .setDescription(
                            "Google Home is a voice-activated speaker powered by the Google Assistant.")
                        .setImage(
                            new Image()
                                .setUrl(
                                    "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                .setAccessibilityText("Google Home"))
                        .setOptionInfo(
                            new OptionInfo()
                                .setSynonyms(
                                    Arrays.asList(
                                        "Google Home Assistant",
                                        "Assistant on the Google Home"))
                                .setKey("SELECTION_KEY_GOOGLE_HOME")),
                    new CarouselSelectCarouselItem()
                        .setTitle("Google Pixel")
                        .setDescription("Pixel. Phone by Google.")
                        .setImage(
                            new Image()
                                .setUrl(
                                    "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png")
                                .setAccessibilityText("Google Pixel"))
                        .setOptionInfo(
                            new OptionInfo()
                                .setSynonyms(
                                    Arrays.asList("Google Pixel XL", "Pixel", "Pixel XL"))
                                .setKey("SELECTION_KEY_GOOGLE_PIXEL")))));
return responseBuilder.build();
MyActionsApp.java

{
  "payload": {
    "google": {
      "expectUserResponse": true,
      "systemIntent": {
        "intent": "actions.intent.OPTION",
        "data": {
          "@type": "type.googleapis.com/google.actions.v2.OptionValueSpec",
          "carouselSelect": {
            "items": [
              {
                "optionInfo": {
                  "key": "SELECTION_KEY_ONE",
                  "synonyms": [
                    "synonym 1",
                    "synonym 2",
                    "synonym 3"
                  ]
                },
                "description": "This is a description of a carousel item.",
                "image": {
                  "url": "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png",
                  "accessibilityText": "Image alternate text"
                },
                "title": "Title of First Carousel Item"
              },
              {
                "optionInfo": {
                  "key": "SELECTION_KEY_GOOGLE_HOME",
                  "synonyms": [
                    "Google Home Assistant",
                    "Assistant on the Google Home"
                  ]
                },
                "description": "Google Home is a voice-activated speaker powered by the Google Assistant.",
                "image": {
                  "url": "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png",
                  "accessibilityText": "Google Home"
                },
                "title": "Google Home"
              },
              {
                "optionInfo": {
                  "key": "SELECTION_KEY_GOOGLE_PIXEL",
                  "synonyms": [
                    "Google Pixel XL",
                    "Pixel",
                    "Pixel XL"
                  ]
                },
                "description": "Pixel. Phone by Google.",
                "image": {
                  "url": "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png",
                  "accessibilityText": "Google Pixel"
                },
                "title": "Google Pixel"
              }
            ]
          }
        }
      },
      "richResponse": {
        "items": [
          {
            "simpleResponse": {
              "textToSpeech": "This is a carousel example."
            }
          }
        ]
      }
    }
  }
}

{
  "expectUserResponse": true,
  "expectedInputs": [
    {
      "possibleIntents": [
        {
          "intent": "actions.intent.OPTION",
          "inputValueData": {
            "@type": "type.googleapis.com/google.actions.v2.OptionValueSpec",
            "carouselSelect": {
              "items": [
                {
                  "optionInfo": {
                    "key": "SELECTION_KEY_ONE",
                    "synonyms": [
                      "synonym 1",
                      "synonym 2",
                      "synonym 3"
                    ]
                  },
                  "description": "This is a description of a carousel item.",
                  "image": {
                    "url": "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png",
                    "accessibilityText": "Image alternate text"
                  },
                  "title": "Title of First Carousel Item"
                },
                {
                  "optionInfo": {
                    "key": "SELECTION_KEY_GOOGLE_HOME",
                    "synonyms": [
                      "Google Home Assistant",
                      "Assistant on the Google Home"
                    ]
                  },
                  "description": "Google Home is a voice-activated speaker powered by the Google Assistant.",
                  "image": {
                    "url": "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png",
                    "accessibilityText": "Google Home"
                  },
                  "title": "Google Home"
                },
                {
                  "optionInfo": {
                    "key": "SELECTION_KEY_GOOGLE_PIXEL",
                    "synonyms": [
                      "Google Pixel XL",
                      "Pixel",
                      "Pixel XL"
                    ]
                  },
                  "description": "Pixel. Phone by Google.",
                  "image": {
                    "url": "https://storage.googleapis.com/actionsresources/logo_assistant_2x_64dp.png",
                    "accessibilityText": "Google Pixel"
                  },
                  "title": "Google Pixel"
                }
              ]
            }
          }
        }
      ],
      "inputPrompt": {
        "richInitialPrompt": {
          "items": [
            {
              "simpleResponse": {
                "textToSpeech": "This is a carousel example."
              }
            }
          ]
        }
      }
    }
  ]
}