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feat: [Avatar app] Quick command samples (#355)
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| Original file line number | Diff line number | Diff line change |
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| /** | ||
| * Copyright 2025 Google LLC | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * https://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| // [START chat_avatar_app] | ||
| 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); | ||
| } | ||
| } | ||
|
|
||
| // [START chat_avatar_slash_command] | ||
| /** | ||
| * 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; | ||
| } | ||
| } | ||
| // [END chat_avatar_slash_command] | ||
|
|
||
| /** | ||
| * 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))))))))); | ||
| } | ||
| } | ||
| // [END chat_avatar_app] |
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