Исправление мелких ошибок, добавление http error code к ответу (400 если проблема с параметрами)

api/api_utils.py

@@ -1,4 +1,6 @@
-from django.http import HttpResponse
+import json
+
+from django.http import *
 from .api_params import *
 
 
@@ -24,6 +26,13 @@ def api_make_response(response):
 # )
 
 
+def default_serializer(obj):
+    try:
+        return obj.to_json()
+    except Exception:
+        return str(obj)
+
+
 def api_method(func_name, doc="", params: list or None = None, returns=""):
     """
     Декоратор для методов API, автоматически валидирует и передает параметры методам
@@ -56,9 +65,12 @@ def api_method(func_name, doc="", params: list or None = None, returns=""):
             # print(f"errors: {errors}, args: {func_args}")
             if len(errors) > 0:
                 if len(errors) == 1:
-                    return make_error_object(errors[0])
+                    obj = make_error_object(errors[0])
                 else:
-                    return make_error_object(errors)
+                    obj = make_error_object(errors)
+                response = HttpResponseBadRequest(json.dumps(obj, default=default_serializer, ensure_ascii=False, indent=4))
+                response.headers["Content-type"] = "application/json; charset=utf-8"
+                return response
             else:
                 try:
                     if asyncio.iscoroutinefunction(func):
@@ -69,10 +81,16 @@ def api_method(func_name, doc="", params: list or None = None, returns=""):
                     return make_error_object(ex)
 
                 if out is None:
-                    return make_error_object(Exception(API_ERROR_INTERNAL_ERROR, "method returned null object"))
+                    obj = make_error_object(Exception(API_ERROR_INTERNAL_ERROR, "method returned null object"))
+                    response = HttpResponseServerError(json.dumps(obj, default=default_serializer, ensure_ascii=False, indent=4))
+                    response.headers["Content-type"] = "application/json; charset=utf-8"
+                    return response
 
                 if not isinstance(out, dict) and not isinstance(out, HttpResponse):
-                    return make_error_object(Exception(API_ERROR_INTERNAL_ERROR, "method returned invalid object type"))
+                    obj = make_error_object(Exception(API_ERROR_INTERNAL_ERROR, "method returned invalid object type"))
+                    response = HttpResponseServerError(json.dumps(obj, default=default_serializer, ensure_ascii=False, indent=4))
+                    response.headers["Content-type"] = "application/json; charset=utf-8"
+                    return response
 
                 return out