feat: Webhook chat (#1217)

* feat: add webhook chat app

* improve indentation

---------

Co-authored-by: pierrick <[email protected]>

Author: PierrickVoulet

solutions/webhook-chat-app/README.md

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+# Google Chat App Webhook
+
+Please see related guide on how to
+[send messages to Google Chat with incoming webhooks](https://developers.google.com/workspace/chat/quickstart/webhooks).

solutions/webhook-chat-app/index.js

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+/**
+ * Copyright 2022 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_webhook]
+/**
+ * Sends asynchronous message to Google Chat
+ * @return {Object} response
+ */
+async function webhook() {
+  const url = "https://chat.googleapis.com/v1/spaces/SPACE_ID/messages?key=KEY&token=TOKEN"
+  const res = await fetch(url, {
+    method: "POST",
+    headers: {"Content-Type": "application/json; charset=UTF-8"},
+    body: JSON.stringify({
+      text: "Hello from a Node script!"
+    })
+  });
+  return await res.json();
+}
+
+webhook().then(res => console.log(res));
+// [END chat_webhook]

solutions/webhook-chat-app/package-lock.json

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+{
+  "name": "webhook-chat-app",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "dependencies": {
+    "node-fetch": "^2.6.0"
+  },
+  "license": "Apache-2.0"
+}

solutions/webhook-chat-app/package.json

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+/**
+ * Copyright 2023 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_webhook_thread]
+/**
+ * Sends asynchronous message to Google Chat
+ * @return {Object} response
+ */
+async function webhook() {
+  const url = "https://chat.googleapis.com/v1/spaces/SPACE_ID/messages?key=KEY&token=TOKEN&messageReplyOption=REPLY_MESSAGE_FALLBACK_TO_NEW_THREAD"
+  const res = await fetch(url, {
+    method: "POST",
+    headers: {"Content-Type": "application/json; charset=UTF-8"},
+    body: JSON.stringify({
+      text: "Hello from a Node script!",
+      thread: {
+        threadKey: "THREAD_KEY_VALUE"
+      }
+    })
+  });
+  return await res.json();
+}
+
+webhook().then(res => console.log(res));
+// [END chat_webhook_thread]