Update proxy/upload_api.py

proxy/upload_api.py

@@ -9,11 +9,19 @@ os.makedirs(DATA_DIR, exist_ok=True)
 def upload():
     if "file" not in request.files:
         return "No file", 400
+
     f = request.files["file"]
+
+    if f.filename == "":
+        return "Empty filename", 400
+
     if not f.filename.endswith(".conllu"):
         return "Only .conllu allowed", 400
-    f.save(os.path.join(DATA_DIR, f.filename))
-    return "OK"
+
+    save_path = os.path.join(DATA_DIR, f.filename)
+    f.save(save_path)
+
+    return "OK", 200
 
 @app.route("/api/files", methods=["GET"])
 def list_files():