Update app.py

app.py

@@ -1,27 +1,26 @@
 import os
-import gradio as gr
 import uvicorn
 from fastapi import FastAPI
+import gradio as gr
 
-# --- FastAPI app ---
 api = FastAPI()
 
 @api.get("/ping")
 async def ping():
     return {"message": "pong"}
 
-# --- Gradio app ---
 with gr.Blocks() as demo:
-    gr.Markdown("# Hello from Gradio + FastAPI")
-    txt = gr.Textbox(label="Type something")
-    out = gr.Textbox(label="Echo")
-    txt.change(lambda x: x, txt, out)
+    gr.Markdown("## Gradio + FastAPI running in HF Spaces")
+    msg = gr.Textbox()
+    out = gr.Textbox()
+    msg.change(lambda x: f"You typed: {x}", msg, out)
 
-# Mount Gradio inside FastAPI
+# Mount gradio at root
 api = gr.mount_gradio_app(api, demo, path="/")
 
 if __name__ == "__main__":
-    port = int(os.environ.get("PORT", 7860))  # HF Spaces injects $PORT
+    port = int(os.environ.get("PORT", 7860))  # 👈 use HF Spaces port
     uvicorn.run(api, host="0.0.0.0", port=port)
 
 
+