diff --git a/solutions/webhook-chat-app/README.md b/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).
diff --git a/solutions/webhook-chat-app/quickstart.py b/solutions/webhook-chat-app/quickstart.py
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+# Copyright 2020 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.
+# A sample script for using an incoming webhook for Google Chat rooms.
+
+
+# [START chat_webhook]
+from json import dumps
+from httplib2 import Http
+
+# Copy the webhook URL from the Chat space where the webhook is registered.
+# The values for SPACE_ID, KEY, and TOKEN are set by Chat, and are included
+# when you copy the webhook URL.
+
+def main():
+    """Google Chat incoming webhook quickstart."""
+    url = "https://chat.googleapis.com/v1/spaces/SPACE_ID/messages?key=KEY&token=TOKEN"
+    app_message = {
+        "text": "Hello from a Python script!"
+    }
+    message_headers = {"Content-Type": "application/json; charset=UTF-8"}
+    http_obj = Http()
+    response = http_obj.request(
+        uri=url,
+        method="POST",
+        headers=message_headers,
+        body=dumps(app_message),
+    )
+    print(response)
+
+
+if __name__ == "__main__":
+    main()
+# [END chat_webhook]
diff --git a/solutions/webhook-chat-app/requirements.txt b/solutions/webhook-chat-app/requirements.txt
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+httplib2>=0.17.0
diff --git a/solutions/webhook-chat-app/thread-reply.py b/solutions/webhook-chat-app/thread-reply.py
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+++ b/solutions/webhook-chat-app/thread-reply.py
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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]
+from json import dumps
+from httplib2 import Http
+
+# Copy the webhook URL from the Chat space where the webhook is registered.
+# The values for SPACE_ID, KEY, and TOKEN are set by Chat, and are included
+# when you copy the webhook URL.
+#
+# Then, append messageReplyOption=REPLY_MESSAGE_FALLBACK_TO_NEW_THREAD to the
+# webhook URL.
+
+
+def main():
+    """Google Chat incoming webhook that starts or replies to a message thread."""
+    url = "https://chat.googleapis.com/v1/spaces/SPACE_ID/messages?key=KEY&token=TOKEN&messageReplyOption=REPLY_MESSAGE_FALLBACK_TO_NEW_THREAD"
+    app_message = {
+        "text": "Hello from a Python script!",
+        # To start a thread, set threadKey to an arbitratry string.
+        # To reply to a thread, specify that thread's threadKey value.
+        "thread": {
+            "threadKey": "THREAD_KEY_VALUE"
+        },
+    }
+    message_headers = {"Content-Type": "application/json; charset=UTF-8"}
+    http_obj = Http()
+    response = http_obj.request(
+        uri=url,
+        method="POST",
+        headers=message_headers,
+        body=dumps(app_message),
+    )
+    print(response)
+
+
+if __name__ == "__main__":
+    main()
+# [END chat_webhook_thread]