fix

src/server/main.py

@@ -697,19 +697,20 @@ async def translate(
 @app.post("/v1/visual_query", 
           response_model=VisualQueryResponse,
           summary="Visual Query with Image",
-          description="Process a visual query with an encrypted text query, encrypted image, and encrypted language codes provided in a JSON body. Rate limited to 100 requests per minute per user. Requires authentication and X-Session-Key header.",
+          description="Process a visual query with an encrypted text query, encrypted image, and encrypted language codes provided in a JSON body named 'data'. Rate limited to 100 requests per minute per user. Requires authentication and X-Session-Key header.",
           tags=["Chat"],
           responses={
               200: {"description": "Query response", "model": VisualQueryResponse},
               400: {"description": "Invalid query, encrypted data, or language codes"},
               401: {"description": "Unauthorized - Token required"},
+              422: {"description": "Validation error in request body"},
               429: {"description": "Rate limit exceeded"},
               504: {"description": "Visual query service timeout"}
           })
 @limiter.limit(settings.chat_rate_limit)
 async def visual_query(
     request: Request,
-    visual_query_request: VisualQueryRequest,
+    data: str = Form(..., description="JSON string containing encrypted query, src_lang, and tgt_lang"),
     file: UploadFile = File(..., description="Encrypted image file to analyze"),
     credentials: HTTPAuthorizationCredentials = Depends(bearer_scheme),
     x_session_key: str = Header(..., alias="X-Session-Key")
@@ -717,6 +718,15 @@ async def visual_query(
     user_id = await get_current_user(credentials)
     session_key = base64.b64decode(x_session_key)
     
+    # Parse and validate JSON data
+    try:
+        import json
+        visual_query_request = VisualQueryRequest.parse_raw(data)
+        logger.info(f"Received visual query JSON: {data}")
+    except Exception as e:
+        logger.error(f"Failed to parse JSON data: {str(e)}")
+        raise HTTPException(status_code=422, detail=f"Invalid JSON data: {str(e)}")
+    
     # Decrypt query
     try:
         encrypted_query = base64.b64decode(visual_query_request.query)