app.py

import requests
import gradio as gr

# API Configuration
api_key = "sk-6Ng7YDAkl0D5z20vAh7tPkmWn5hCTcZGIcl_wRiQ5NQ"  # replace with your actual key
url = "http://localhost:7860/api/v1/run/30d9ce86-194f-44ba-a15a-f822c3ac4f57"  # LangFlow endpoint

def query_langflow(user_input):
    payload = {
        "output_type": "chat",
        "input_type": "chat",
        "input_value": user_input
    }

    headers = {
        "Content-Type": "application/json",
        "x-api-key": api_key
    }

    try:
        response = requests.post(url, json=payload, headers=headers)
        response.raise_for_status()
        data = response.json()

        # Adjust based on actual LangFlow response structure
        if isinstance(data, dict):
            return data.get("outputs", data)  
        return str(data)

    except requests.exceptions.RequestException as e:
        return f"❌ API request failed: {e}"
    except ValueError as e:
        return f"⚠️ Error parsing response: {e}"

# Gradio UI
with gr.Blocks() as demo:
    gr.Markdown("## 🚀 LangFlow Chat with Gradio")

    chatbot = gr.Chatbot()
    msg = gr.Textbox(placeholder="Ask something...")

    def chat(user_input, history):
        response = query_langflow(user_input)
        history.append((user_input, response))
        return history, ""

    msg.submit(chat, [msg, chatbot], [chatbot, msg])

# 🚀 This will show BOTH: local URL + public .gradio.live URL
demo.launch(server_name="http://127.0.0.1:4040", server_port=7861, share=True)