Refactor: Use top-level Starlette app in main_asgi

modal_whisper_app.py

@@ -1,5 +1,7 @@
 import modal
 from fastapi import FastAPI, UploadFile, File, Body, Query
+from starlette.applications import Starlette
+from starlette.routing import Mount
 import os
 import tempfile
 import io # Used by Whisper for BytesIO
@@ -826,9 +828,17 @@ def video_analyzer_gradio_ui():
 # === Main ASGI App (FastAPI + Gradio) ===
 @modal.asgi_app()
 def main_asgi():
-    # fastapi_app is defined globally
-    # video_analyzer_gradio_ui returns an ASGI-compatible Gradio app
     gradio_asgi_app = video_analyzer_gradio_ui()
-    fastapi_app.mount("/gradio", gradio_asgi_app, name="gradio_ui")
-    print("FastAPI app with Gradio UI mounted on /gradio is ready.")
-    return fastapi_app
+    
+    # fastapi_app is already defined globally and has its routes (@fastapi_app.post, @fastapi_app.get)
+    # We should not mount Gradio inside fastapi_app if we are mounting fastapi_app itself into a Starlette app.
+    # Ensure fastapi_app is 'clean' of the /gradio mount if it was done elsewhere, 
+    # or ensure it's not mounted if we are doing it at the Starlette level.
+    # For this change, we assume fastapi_app does NOT have /gradio mounted internally.
+
+    # Create a new top-level Starlette app
+    top_level_app = Starlette(routes=[
+        Mount("/api", app=fastapi_app),      # Mount FastAPI app under /api
+        Mount("/gradio", app=gradio_asgi_app) # Mount Gradio app under /gradio
+    ])
+    return top_level_app