app.py

import gradio as gr
import time
import random

get_window_url_params = """
    function() {
        const params = new URLSearchParams(window.location.search);
        const url_params = Object.fromEntries(params);
        return url_params;
        }
    """

with gr.Blocks() as demo:
    url_params = gr.JSON({}, visible=True, label="URL Params")
    chatbot = gr.Chatbot()
    msg = gr.Textbox()
    clear = gr.Button("Clear")

    def user(user_message, url_params, history):
        return "", history + [[user_message, None]]

    def bot(history):
        bot_message = random.choice(["Yes", "No"])
        history[-1][1] = bot_message
        time.sleep(1)
        return history

    msg.submit(user, inputs=[msg, url_params, chatbot], outputs=[msg, chatbot], queue=False).then(
        bot, chatbot, chatbot
    )
    clear.click(lambda: None, None, chatbot, queue=False)
    demo.load(
        fn=lambda x:x,
        inputs=[url_params],
        outputs=[url_params],
        _js=get_window_url_params,
        queue=False
    )   

demo.launch()