Tworzenie aplikacji HTTP Google Chat

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}},
          ],
        }],
      },
    }],
  };
}

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}},
                            ]
                        }
                    ],
                },
            }
        ],
    }

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)))))))));
  }
}

<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>