End-to-End Implementation Walk Through: Run and Test the Pipeline Demo

1) How to Run the Multi-Agent FastAPI Server

1. Activate your Python virtual environment (if not already active), In the first terminal, run:

# Windows
.venv\Scripts\activate

# macOS/Linux
source .venv/bin/activate

2. Run the FastAPI server:

python server_fastapi.py

3. Server Output:

   • If successful, you should see output similar to:

INFO:     Uvicorn running on http://127.0.0.1:8080 (Press CTRL+C to quit)
INFO:     Application startup complete.

• This means your API server is live at http://127.0.0.1:8080.

4. Ready for Requests:

• You can now send POST requests to http://127.0.0.1:8080/run from your client, or test with tools like client_fastapi.py, Postman, or curl

2) How to Run the FastAPI Client

1. Split the Terminal
   In VS Code, open the integrated terminal.

   • Go to the menu bar and select Terminal > Split Terminal (or use Ctrl+Shift+5).

   • This gives you two terminals side by side—one for the server, one for the client.

2. Activate Your Virtual Environment

   • In the second terminal, activate your Python virtual environment if you haven’t already:

# Windows
.venv\Scripts\activate

# macOS/Linux
source .venv/bin/activate

3. Run the FastAPI Client

• With the virtual environment active, start your client script by running:

python client_fastapi.py

4. Enter a Prompt (Example Provided)

• When prompted with

Prompt (type 'exit' to quit):

Enter your query, such as:

Summarize the latest stock price of Google and save the answer to Notion.

The client will communicate with your FastAPI server, and you'll see the response in the terminal.

=== RESPONSE ===
 The latest stock price for Google (Alphabet Inc. Class A - GOOGL) as of May 16, 2025, closed at $166.19 USD. The trading day showed an open price of $167.7250, a high of $169.3500, and a low of $165.6200, with a total volume of 42,846,925 shares traded.

Additionally, the Class C shares (GOOG) were noted at a current price of $167.43 USD, seeing a 1.23% increase over the past 24 hours according to recent reports.

Overall, Google has demonstrated positive recent momentum but a slight decrease over the past year with a recent market cap standing at approximately $2.02 trillion.

This information has been saved to Notion.

5. Check the Document in Notion

• Open your Notion workspace and navigate to your connected database (e.g., US Market Analysis Report).

• You should see a new entry corresponding to your query.

• Click to view the page (Open in slide peek) —the content should be neatly formatted, with a professional summary, statistics, and sections as designed by your pipeline.