Update app.py

app.py

@@ -1,5 +1,6 @@
-from fastapi import FastAPI, HTTPException
+from fastapi import FastAPI, HTTPException, Response
 from fastapi.middleware.cors import CORSMiddleware
+from fastapi.middleware.base import BaseHTTPMiddleware
 from fastapi.responses import JSONResponse
 import os
 from dotenv import load_dotenv
@@ -13,6 +14,15 @@ load_dotenv()
 
 app = FastAPI()
 
+class ContentTypeMiddleware(BaseHTTPMiddleware):
+    async def dispatch(self, request, call_next):
+        response = await call_next(request)
+        if isinstance(response, JSONResponse):
+            response.headers["Content-Type"] = "application/json; charset=utf-8"
+        return response
+
+app.add_middleware(ContentTypeMiddleware)
+
 app.add_middleware(
     CORSMiddleware,
     allow_origins=["*"],