Membangun aplikasi Google Chat HTTP

Di Konsol API Google, buka halaman Cloud Run:

Buka Cloud Run

Pastikan project untuk aplikasi Chat Anda dipilih.

Klik Write a function.

Di halaman Create service, siapkan fungsi Anda:

1. Di kolom Nama layanan, masukkan quickstartchatapp.
2. Di daftar Region, pilih region.
3. Dalam daftar Runtime, pilih Node.js versi terbaru.
4. Di bagian Authentication, pilih Require authentication.
5. Klik Create, dan tunggu hingga Cloud Run membuat layanan. Konsol akan mengalihkan Anda ke tab Sumber.

Di tab Sumber:

1. Di Entry point, hapus teks default dan masukkan avatarApp.

2. Ganti konten index.js dengan kode berikut:

   node/avatar-app/index.js

   Lihat di GitHub
   const functions = require('@google-cloud/functions-framework');
   
   // Command IDs (configure these in Google Chat API)
   const ABOUT_COMMAND_ID = 1; // ID for the "/about" slash command
   const HELP_COMMAND_ID = 2; // ID for the "Help" quick command
   
   /**
    * Google Cloud Function that handles HTTP requests from Google Chat.
    *
    * @param {Object} req - The HTTP request object sent from Google Chat.
    * @param {Object} res - The HTTP response object.
    */
   functions.http('avatarApp', (req, res) => {
     const event = req.body;
   
     if (event.appCommandMetadata) {
       handleAppCommands(event, res);
     } else {
       handleRegularMessage(event, res);
     }
   });
   
   /**
    * Handles slash and quick commands.
    *
    * @param {Object} event - The Google Chat event.
    * @param {Object} res - The HTTP response object.
    */
   function handleAppCommands(event, res) {
     const {appCommandId, appCommandType} = event.appCommandMetadata;
   
     switch (appCommandId) {
       case ABOUT_COMMAND_ID:
         return res.send({
           privateMessageViewer: event.user,
           text: 'The Avatar app replies to Google Chat messages.'
         });
       case HELP_COMMAND_ID:
         return res.send({
           privateMessageViewer: event.user,
           text: 'The Avatar app replies to Google Chat messages.'
         });
     }
   }
   
   /**
    * Handles regular messages (not commands).
    *
    * @param {Object} event - The Google Chat event.
    * @param {Object} res - The HTTP response object.
    */
   function handleRegularMessage(event, res) {
     const messageData = createMessage(event.user);
     res.send(messageData);
   }
   
   /**
    * Creates a card message with the user's avatar.
    *
    * @param {Object} user - The user who sent the message.
    * @param {string} user.displayName - The user's display name.
    * @param {string} user.avatarUrl - The URL of the user's avatar.
    * @return {Object} - The card message object.
    */
   function createMessage({displayName, avatarUrl}) {
     return {
       text: 'Here\'s your avatar',
       cardsV2: [{
         cardId: 'avatarCard',
         card: {
           name: 'Avatar Card',
           header: {
             title: `Hello ${displayName}!`,
           },
           sections: [{
             widgets: [
               {textParagraph: {text: 'Your avatar picture:'}},
               {image: {imageUrl: avatarUrl}},
             ],
           }],
         },
       }],
     };
   }

3. Klik Simpan dan deploy ulang.

Di Konsol API Google, buka halaman Cloud Run:

Buka Cloud Run

Pastikan project untuk aplikasi Chat Anda dipilih.

Klik Write a function.

Di halaman Create service, siapkan fungsi Anda:

1. Di kolom Nama layanan, masukkan quickstartchatapp.
2. Di daftar Region, pilih region.
3. Dalam daftar Runtime, pilih versi Python terbaru.
4. Di bagian Authentication, pilih Require authentication.
5. Klik Create, dan tunggu hingga Cloud Run membuat layanan. Konsol akan mengalihkan Anda ke tab Sumber.

Di tab Sumber:

1. Di Entry point, hapus teks default dan masukkan avatar_app.

2. Ganti konten main.py dengan kode berikut:

   python/avatar-app/main.py

   Lihat di GitHub
   from typing import Any, Mapping
   
   import flask
   import functions_framework
   
   # Command IDs (configure these in Google Chat API)
   ABOUT_COMMAND_ID = 1  # ID for the "/about" slash command
   HELP_COMMAND_ID = 2  # ID for the "Help" quick command
   
   
   @functions_framework.http
   def avatar_app(req: flask.Request) -> Mapping[str, Any]:
       """Google Cloud Function that handles HTTP requests from Google Chat.
   
       Args:
           flask.Request: the request
   
       Returns:
           Mapping[str, Any]: the response
       """
       event = req.get_json(silent=True)
   
       if event and "appCommandMetadata" in event:
           return handle_app_commands(event)
       else:
           return handle_regular_message(event)
   
   
   def handle_app_commands(event: Mapping[str, Any]) -> Mapping[str, Any]:
       """Handles slash and quick commands.
   
       Args:
           Mapping[str, Any] event: The Google Chat event.
   
       Returns:
           Mapping[str, Any]: the response
       """
       app_command_id = event["appCommandMetadata"]["appCommandId"]
   
       if app_command_id == ABOUT_COMMAND_ID:
           return {
               "privateMessageViewer": event["user"],
               "text": "The Avatar app replies to Google Chat messages.",
           }
       elif app_command_id == HELP_COMMAND_ID:
           return {
               "privateMessageViewer": event["user"],
               "text": "The Avatar app replies to Google Chat messages.",
           }
       return {}
   
   
   
   
   def handle_regular_message(event: Mapping[str, Any]) -> Mapping[str, Any]:
       """Handles regular messages (not commands).
   
       Args:
           Mapping[str, Any] event: The Google Chat event.
   
       Returns:
           Mapping[str, Any]: the response
       """
   
       if not event or "user" not in event:
           return "Invalid request."
   
       message_data = create_message(event["user"])
       return message_data
   
   
   def create_message(user: Mapping[str, Any]) -> Mapping[str, Any]:
       """Creates a card message with the user's avatar.
   
       Args:
           Mapping[str, Any] user: The user who sent the message.
   
       Returns:
           Mapping[str, Any]: a card with the user's avatar.
       """
       display_name = user.get("displayName", "")
       avatar_url = user.get("avatarUrl", "")
   
       return {
           "text": "Here's your avatar",
           "cardsV2": [
               {
                   "cardId": "avatarCard",
                   "card": {
                       "name": "Avatar Card",
                       "header": {"title": f"Hello {display_name}!"},
                       "sections": [
                           {
                               "widgets": [
                                   {"textParagraph": {"text": "Your avatar picture:"}},
                                   {"image": {"imageUrl": avatar_url}},
                               ]
                           }
                       ],
                   },
               }
           ],
       }

3. Klik Simpan dan deploy ulang.

Di Konsol API Google, buka halaman Cloud Run:

Buka Cloud Run

Pastikan project untuk aplikasi Chat Anda dipilih.

Klik Write a function.

Di halaman Create service, siapkan fungsi Anda:

1. Di kolom Nama layanan, masukkan quickstartchatapp.
2. Di daftar Region, pilih region.
3. Dalam daftar Runtime, pilih versi Java terbaru.
4. Di bagian Authentication, pilih Require authentication.
5. Klik Create, dan tunggu hingga Cloud Run membuat layanan. Konsol akan mengalihkan Anda ke tab Sumber.

Di tab Sumber:

1. Di Entry point, hapus teks default dan masukkan App.
2. Mengganti nama src/main/java/com/example/Example.java menjadi src/main/java/AvatarApp.java.

3. Ganti konten AvatarApp.java dengan kode berikut:

   java/avatar-app/src/main/java/AvatarApp.java

   Lihat di GitHub
   import com.google.api.services.chat.v1.model.CardWithId;
   import com.google.api.services.chat.v1.model.GoogleAppsCardV1Card;
   import com.google.api.services.chat.v1.model.GoogleAppsCardV1CardHeader;
   import com.google.api.services.chat.v1.model.GoogleAppsCardV1Image;
   import com.google.api.services.chat.v1.model.GoogleAppsCardV1Section;
   import com.google.api.services.chat.v1.model.GoogleAppsCardV1TextParagraph;
   import com.google.api.services.chat.v1.model.GoogleAppsCardV1Widget;
   import com.google.api.services.chat.v1.model.Message;
   import com.google.api.services.chat.v1.model.User;
   import com.google.cloud.functions.HttpFunction;
   import com.google.cloud.functions.HttpRequest;
   import com.google.cloud.functions.HttpResponse;
   import com.google.gson.Gson;
   import com.google.gson.JsonObject;
   import java.util.List;
   
   public class AvatarApp implements HttpFunction {
     private static final Gson gson = new Gson();
   
     // Command IDs (configure these in Google Chat API)
     private static final int ABOUT_COMMAND_ID = 1; // ID for the "/about" slash command
     private static final int HELP_COMMAND_ID = 2; // ID for the "Help" quick command
   
     @Override
     public void service(HttpRequest request, HttpResponse response) throws Exception {
       JsonObject event = gson.fromJson(request.getReader(), JsonObject.class);
   
       if (event.has("appCommandMetadata")) {
         handleAppCommands(event, response);
       } else {
         handleRegularMessage(event, response);
       }
     }
   
     /**
      * Handles slash and quick commands.
      *
      * @param event    The Google Chat event.
      * @param response The HTTP response object.
      */
     private void handleAppCommands(JsonObject event, HttpResponse response) throws Exception {
       int appCommandId = event.getAsJsonObject("appCommandMetadata").get("appCommandId").getAsInt();
   
       switch (appCommandId) {
         case ABOUT_COMMAND_ID:
           Message aboutMessage = new Message();
           aboutMessage.setText("The Avatar app replies to Google Chat messages.");
           aboutMessage.setPrivateMessageViewer(new User()
               .setName(event.getAsJsonObject("user").get("name").getAsString()));
           response.getWriter().write(gson.toJson(aboutMessage));
           return;
         case HELP_COMMAND_ID:
           Message helpMessage = new Message();
           helpMessage.setText("The Avatar app replies to Google Chat messages.");
           helpMessage.setPrivateMessageViewer(new User()
               .setName(event.getAsJsonObject("user").get("name").getAsString()));
           response.getWriter().write(gson.toJson(helpMessage));
           return;
       }
     }
   
     /**
      * Handles regular messages (not commands).
      *
      * @param event    The Google Chat event.
      * @param response The HTTP response object.
      */
     private void handleRegularMessage(JsonObject event, HttpResponse response) throws Exception {
   
       if (!event.has("user")) {
         response.getWriter().write("Invalid request.");
         return;
       }
   
       JsonObject user = event.getAsJsonObject("user");
       String displayName = user.has("displayName") ? user.get("displayName").getAsString() : "";
       String avatarUrl = user.has("avatarUrl") ? user.get("avatarUrl").getAsString() : "";
       Message message = createMessage(displayName, avatarUrl);
       response.getWriter().write(gson.toJson(message));
     }
   
     /**
      * Creates a card message with the user's avatar.
      *
      * @param displayName The user's display name.
      * @param avatarUrl   The URL of the user's avatar.
      * @return The card message object.
      */
     private Message createMessage(String displayName, String avatarUrl) {
       return new Message()
           .setText("Here's your avatar")
           .setCardsV2(List.of(new CardWithId()
               .setCardId("avatarCard")
               .setCard(new GoogleAppsCardV1Card()
                   .setName("Avatar Card")
                   .setHeader(new GoogleAppsCardV1CardHeader()
                       .setTitle(String.format("Hello %s!", displayName)))
                   .setSections(List.of(new GoogleAppsCardV1Section().setWidgets(List.of(
                       new GoogleAppsCardV1Widget()
                           .setTextParagraph(new GoogleAppsCardV1TextParagraph()
                               .setText("Your avatar picture:")),
                       new GoogleAppsCardV1Widget()
                           .setImage(new GoogleAppsCardV1Image().setImageUrl(avatarUrl)))))))));
     }
   }

4. Ganti konten pom.xml dengan kode berikut:

   java/avatar-app/pom.xml

   Lihat di GitHub
   <project xmlns="http://maven.apache.org/POM/4.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
   
     <groupId>gcfv2</groupId>
     <artifactId>avatar-app</artifactId>
     <version>0.0.1</version>
     <name>Avatar App</name>
   
     <properties>
       <maven.compiler.release>21</maven.compiler.release>
     </properties>
   
     <dependencies>
       <dependency>
         <groupId>com.google.cloud.functions</groupId>
         <artifactId>functions-framework-api</artifactId>
         <version>1.1.4</version>
       </dependency>
   
       <!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
       <dependency>
         <groupId>com.google.code.gson</groupId>
         <artifactId>gson</artifactId>
         <version>2.12.1</version>
       </dependency>
   
       <!-- https://mvnrepository.com/artifact/com.google.apis/google-api-services-chat -->
       <dependency>
         <groupId>com.google.apis</groupId>
         <artifactId>google-api-services-chat</artifactId>
         <version>v1-rev20250116-2.0.0</version>
       </dependency>
   
     </dependencies>
   
   </project>

5. Klik Simpan dan deploy ulang.