Spaces:
Runtime error
Runtime error
Added code from Kristopher Overholt
Browse files- .gitignore +162 -0
- Procfile +1 -0
- README.md +55 -1
- app.py +52 -4
- images/chatbot.png +0 -0
.gitignore
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# Byte-compiled / optimized / DLL files
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Procfile
ADDED
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web: python app.py
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README.md
CHANGED
@@ -9,5 +9,59 @@ app_file: app.py
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pinned: false
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license: mit
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---
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pinned: false
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license: mit
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---
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# palm-vertex-ai-chatbot
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An example chatbot app with Gradio that uses the PaLM API from Vertex AI in
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Google Cloud
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![Chatbot app powered by the PaLM API in Google Cloud](images/chatbot.png)
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## Usage
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1. Clone this repository.
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2. Install the required dependencies:
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```bash
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pip install -r requirements.txt
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```
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3. In the GCP Console, navigate to `Artificial Intelligence > Vertex AI > Dashboard`, and enable the
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[Vertex AI API](https://console.cloud.google.com/apis/enableflow?apiid=aiplatform.googleapis.com).
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4. Optionally, if you want to run the Streamlit app on Railway, navigate to `APIs & Services > Enabled APIs & services`, and select Vertex AI API from the list. From the `Credentials tab`, click `Create Credentials > Service account`
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(https://console.cloud.google.com/iam-admin/serviceaccounts/create)
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, and create a service account with the Vertex AI User role. Finally, add and download a new key for this service account i.e. JSON credentials file.
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5. Set the `GOOGLE_APPLICATION_CREDENTIALS` environment variable, e.g.
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```bash
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export GOOGLE_APPLICATION_CREDENTIALS='/tmp/vertex-ai-user.json'
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```
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4. Run the app:
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```bash
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python app.py
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```
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5. Navigate to `http://127.0.0.1:8080/` in your browser.
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6. Start chatting with your PaLM-powered chatbot!
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## Deploy to Cloud Run
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The above steps allow you to test and use the chatbot app on your local machine.
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You can use a fully managed service such as Cloud Run to publish your app.
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1. Run the following command using the
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[gcloud CLI](https://cloud.google.com/sdk/gcloud):
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```bash
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gcloud run deploy chatbot-app --source . --allow-unauthenticated --region us-central1
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```
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2. After a couple of minutes, your chatbot app will be deployed on Cloud Run,
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and you can access the app via a URL similar to:
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[`https://chatbot-app-r5gdynozbq-uc.a.run.app/`](https://chatbot-app-r5gdynozbq-uc.a.run.app/)
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app.py
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import gradio as gr
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def greet(name):
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return "Hello " + name + "!!"
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import gradio as gr
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from vertexai.preview.language_models import ChatModel, InputOutputTextPair, ChatSession
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def create_session():
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chat_model = ChatModel.from_pretrained("chat-bison@001")
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parameters = {
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"temperature": 0.2,
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"max_output_tokens": 256,
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"top_k": 40,
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"top_p": 0.80,
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"context": "You are an astronomer, knowledgeable about the solar system.",
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"examples": [
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InputOutputTextPair(
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input_text="How many moons does Mars have?",
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output_text="The planet Mars has two moons, Phobos and Deimos.",
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),
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],
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}
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chat = ChatSession(model=chat_model, **parameters)
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return chat
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def response(chat, message):
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res = chat.send_message(
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message=message, max_output_tokens=256, temperature=0.2, top_k=40, top_p=0.8
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)
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return res.text
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with gr.Blocks() as demo:
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chatbot = gr.Chatbot(
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[
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(
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"Hello! I'm an astronomer chatbot.\nAsk me anything about the solar system!",
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None,
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)
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],
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label="PaLM-based Chatbot powered by Google Cloud",
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).style(height=400)
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msg = gr.Textbox(placeholder="Type your response here", label="Response")
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clear = gr.Button("Clear")
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chat_model = create_session()
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def respond(message, chat_history):
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texts = [message]
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bot_message = response(chat_model, message)
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chat_history.append((message, bot_message))
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return "", chat_history
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msg.submit(respond, [msg, chatbot], [msg, chatbot])
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clear.click(lambda: None, None, chatbot, queue=False)
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if __name__ == "__main__":
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demo.launch(server_port=8080)
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images/chatbot.png
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