# test_client.py import requests # Test the FastAPI endpoint response = requests.post( "http://localhost:7860/visualize/natural", files={"file": open("data.xlsx", "rb")}, # Replace "data.xlsx" with your file data={"prompt": "Show sales over time", "return_type": "base64"} ) # Print the JSON response (contains Base64 image) print(response.json()) # To save the image (optional): if "image" in response.json(): import base64 image_data = response.json()["image"].split(",")[1] # Remove header with open("plot.png", "wb") as f: f.write(base64.b64decode(image_data))