Add support for app authentication in the demo app

apps-script/incident-response/ChatApi.gs

@@ -0,0 +1,32 @@
+/**
+ * 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
+ *
+ * http://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.
+ */
+/**
+ * Creates a space in Google Chat with the provided title and members, and posts an
+ * initial message to it.
+ *
+ * @param {Object} formData the data submitted by the user. It should contain the fields
+ *                          title, description, and users.
+ * @return {string} the resource name of the new space.
+ */
+function handleIncident(formData) {
+  console.log(formData)
+  const appCredentialsMode = formData.appCredentials; // Get the appCredentials element
+  if(appCredentialsMode){
+    return handleIncidentWithAppCredentials(formData)
+  } else{
+    return handleIncidentWithHumanCredentials(formData)
+  }
+}

apps-script/incident-response/ChatApiAppCredentials.gs

@@ -0,0 +1,121 @@
+/**
+ * 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
+ *
+ * http://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.
+ */
+
+function handleIncidentWithAppCredentials(formData) {
+  const users = formData.users.trim().length > 0 ? formData.users.split(',') : [];
+  const spaceName = createChatSpaceWithAppCredentials(formData.title);
+  createHumanMembershipWithAppCredentials(spaceName, getUserEmail());
+  for (const user of users ){
+    createHumanMembershipWithAppCredentials(spaceName, user);
+  }
+  createMessageWithAppCredentials(spaceName, formData.description);
+  return spaceName;
+}
+
+
+
+function createChatSpaceWithAppCredentials(spaceName) {
+  try {
+    const service = getService_();
+    if (!service.hasAccess()) {
+      console.error(service.getLastError());
+      return;
+    }
+    // for private apps, the alias can be used
+    const my_customer_alias = "customers/my_customer"
+    // Specify the space to create.
+    const space = {
+        displayName: spaceName,
+        spaceType: 'SPACE',                
+        customer: my_customer_alias
+    };
+    // Call Chat API with a service account to create a message.
+    const createdSpace = Chat.Spaces.create(
+        space,
+        {},
+        // Authenticate with the service account token.
+        {'Authorization': 'Bearer ' + service.getAccessToken()});
+    // Log details about the created message.
+    console.log(createdSpace);
+    return createdSpace.name;
+  } catch (err) {
+    // TODO (developer) - Handle exception.
+    console.log('Failed to create space with error %s', err.message);
+  }
+}
+
+function createMessageWithAppCredentials(spaceName, message) {
+  try {
+    const service = getService_();
+    if (!service.hasAccess()) {
+      console.error(service.getLastError());
+      return;
+    }
+
+    // Call Chat API with a service account to create a message.
+    const result = Chat.Spaces.Messages.create(
+        {'text': message},
+        spaceName,
+        {},
+        // Authenticate with the service account token.
+        {'Authorization': 'Bearer ' + service.getAccessToken()});
+
+    // Log details about the created message.
+    console.log(result);
+  } catch (err) {
+    // TODO (developer) - Handle exception.
+    console.log('Failed to create message with error %s', err.message);
+  }
+}
+
+function createHumanMembershipWithAppCredentials(spaceName, email){
+  try{
+    const service = getService_();
+      if (!service.hasAccess()) {
+        console.error(service.getLastError());
+        return;
+      }
+    const membership = {
+      member: {
+        // TODO(developer): Replace USER_NAME here
+        name: 'users/'+email,
+        // User type for the membership
+        type: 'HUMAN'
+      }
+    };
+    const result = Chat.Spaces.Members.create(
+      membership,
+      spaceName,
+      {},
+      {'Authorization': 'Bearer ' + service.getAccessToken()}
+    );
+    console.log(result)
+  } catch (err){
+    console.log('Failed to create membership with error %s', err.message)
+  }
+
+}
+
+
+function getService_() {
+  return OAuth2.createService(APP_CREDENTIALS.client_email)
+      .setTokenUrl('https://oauth2.googleapis.com/token')
+      .setPrivateKey(APP_CREDENTIALS.private_key)
+      .setIssuer(APP_CREDENTIALS.client_email)
+      .setSubject(APP_CREDENTIALS.client_email)
+      .setScope(APP_CREDENTIALS_SCOPES)
+      .setPropertyStore(PropertiesService.getScriptProperties());
+}

apps-script/incident-response/ChatSpaceCreator.gs → apps-script/incident-response/ChatApiHumanCredentials.gs

@@ -1,5 +1,5 @@
 /**
- * Copyright 2023 Google LLC
+ * 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.
@@ -23,11 +23,11 @@
  *                          title, description, and users.
  * @return {string} the resource name of the new space.
  */
-function createChatSpace(formData) {
+function handleIncidentWithHumanCredentials(formData) {
   const users = formData.users.trim().length > 0 ? formData.users.split(',') : [];
-  const spaceName = setUpSpace_(formData.title, users);
-  addAppToSpace_(spaceName);
-  createMessage_(spaceName, formData.description);
+  const spaceName = setUpSpaceWithHumanCredentials(formData.title, users);
+  addAppToSpaceWithHumanCredentials(spaceName);
+  createMessageWithHumanCredentials(spaceName, formData.description);
   return spaceName;
 }
 
@@ -36,7 +36,7 @@ function createChatSpace(formData) {
  *
  * @return {string} the resource name of the new space.
  */
-function setUpSpace_(displayName, users) {
+function setUpSpaceWithHumanCredentials(displayName, users) {
   const memberships = users.map(email => ({
     member: {
       name: `users/${email}`,
@@ -61,7 +61,7 @@ function setUpSpace_(displayName, users) {
  *
  * @return {string} the resource name of the new membership.
  */
-function addAppToSpace_(spaceName) {
+function addAppToSpaceWithHumanCredentials(spaceName) {
   const request = {
     member: {
       name: "users/app",
@@ -78,7 +78,7 @@ function addAppToSpace_(spaceName) {
  *
  * @return {string} the resource name of the new message.
  */
-function createMessage_(spaceName, text) {
+function createMessageWithHumanCredentials(spaceName, text) {
   const request = {
     text: text
   };
@@ -87,4 +87,4 @@ function createMessage_(spaceName, text) {
   return message.name;
 }
 
-// [END chat_incident_response_space_creator]
+// [END chat_incident_response_space_creator]

apps-script/incident-response/ChatApp.gs

@@ -1,5 +1,5 @@
 /**
- * Copyright 2023 Google LLC
+ * 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.

apps-script/incident-response/Consts.gs

@@ -1,5 +1,5 @@
 /**
- * Copyright 2023 Google LLC
+ * 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.
@@ -15,8 +15,11 @@
  */
 // [START chat_incident_response_consts]
 
-const PROJECT_ID = 'replace-with-your-project-id';
-const VERTEX_AI_LOCATION_ID = 'us-central1';
-const CLOSE_INCIDENT_COMMAND_ID = 1;
+const PROJECT_ID = PROJECT_ID';
+const CLOSE_INCIDENT_COMMAND_ID = 3;
+const APP_CREDENTIALS = APP_CREDENTIALS;
+const APP_CREDENTIALS_SCOPES = 'https://www.googleapis.com/auth/chat.bot https://www.googleapis.com/auth/chat.app.memberships https://www.googleapis.com/auth/chat.app.spaces.create';
+const GEMINI_API_KEY = GEMINI_API_KEY;
 
-// [END chat_incident_response_consts]
+
+// [END chat_incident_response_consts]

apps-script/incident-response/DocsApi.gs

@@ -1,5 +1,5 @@
 /**
- * Copyright 2023 Google LLC
+ * 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.

apps-script/incident-response/GeminiApi.gs

@@ -0,0 +1,66 @@
+/**
+ * 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
+ *
+ * http://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_incident_response_gemini]
+
+/**
+ * Summarizes a Chat conversation using the Vertex AI text prediction API.
+ *
+ * @param {string} chatHistory The Chat history that will be summarized.
+ * @return {string} The content from the text prediction response.
+ */
+function summarizeChatHistory_(chatHistory) {
+  const prompt =
+    "Summarize the following conversation between Engineers resolving an incident"
+      + " in a few sentences. Use only the information from the conversation.\n\n"
+      + chatHistory;
+
+  const payload = {
+    "contents": [{
+      "parts": [{
+        "text": prompt
+      }]
+    }]
+  };
+
+  const fetchOptions = {
+    method: 'POST',
+    contentType: 'application/json',
+    payload: JSON.stringify(payload)
+  }
+  const gemini_endpoint = `https://generativelanguage.googleapis.com/v1beta/models/gemini-pro:generateContent?key=${GEMINI_API_KEY}`;
+
+  try {
+    var response = UrlFetchApp.fetch(gemini_endpoint, fetchOptions);
+    var responseCode = response.getResponseCode();
+    var responseBody = response.getContentText();
+
+    if (responseCode === 200) {
+      var json = JSON.parse(responseBody);
+      if (json.candidates && json.candidates.length > 0 && json.candidates[0].content && json.candidates[0].content.parts && json.candidates[0].content.parts.length > 0) {
+        return json.candidates[0].content.parts[0].text;
+      } else {
+        return "Gemini API: Unexpected response structure.";
+      }
+    } else {
+      return "Gemini API Error: " + responseCode + " - " + responseBody;
+    }
+  } catch (e) {
+    console.log("Error during API call: " + e.toString())
+    return 'Gemini API error, please check logs.'
+  }
+}
+
+// [END chat_incident_response_gemini]

apps-script/incident-response/Index.html

@@ -1,5 +1,5 @@
 <!--
-Copyright 2023 Google LLC
+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.
@@ -45,6 +45,10 @@ <h1>Incident Manager</h1>
               <small>This message will be posted after the space is created.</small><br/>
               <textarea name="description" id="description"></textarea>
             </p>
+            <p>
+              <label for="appCredentials">Use app credentials</label>
+              <input type="checkbox" id="appCredentials" name="appCredentials" value="true">
+            </p>
             <p class="text-center">
               <input type="submit" value="CREATE CHAT SPACE" />
             </p>
@@ -59,4 +63,4 @@ <h1>Incident Manager</h1>
     <?!= include('JavaScript'); ?>
   </body>
 </html>
-<!-- [END chat_incident_response_index] -->
+<!-- [END chat_incident_response_index] -->