Update main.py

main.py

@@ -1,10 +1,13 @@
-from fastapi import UploadFile, Form
+from fastapi import FastAPI, UploadFile, Form
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import JSONResponse
 import shutil
 import os
 
-# Enable CORS so frontend can talk to backend
+# ✅ Create FastAPI app
+app = FastAPI()
+
+# ✅ Enable CORS so frontend can talk to backend
 app.add_middleware(
     CORSMiddleware,
     allow_origins=["*"],
@@ -13,14 +16,16 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
+# ✅ Prediction endpoint
 @app.post("/predict")
 async def predict(question: str = Form(...), file: UploadFile = Form(...)):
     try:
-        # Save uploaded file
+        # Save uploaded file temporarily
         temp_path = f"temp_{file.filename}"
         with open(temp_path, "wb") as f:
             shutil.copyfileobj(file.file, f)
 
+        # ✅ Decide handler based on file type
         if file.content_type.startswith("image/"):
             from appImage import answer_question_from_image
             from PIL import Image