Small fix

aiogram/bot/api.py

@@ -4,6 +4,7 @@ import os
 import aiohttp
 
 from ..exceptions import ValidationError, TelegramAPIError
+from ..utils import json
 
 log = logging.getLogger('aiogram')
 
@@ -40,7 +41,7 @@ async def _check_result(method_name, response):
         raise TelegramAPIError(f"The server returned HTTP {response.status}. Response body:\n[{body}]",
                                method_name, response.status, body)
 
-    result_json = await response.json()
+    result_json = await response.json(loads=json.loads)
 
     if not result_json.get('ok'):
         body = await response.text()

aiogram/bot/base.py

@@ -1,10 +1,10 @@
 import asyncio
 import io
-import json
 
 import aiohttp
 
 from . import api
+from ..utils import json
 from ..utils.payload import generate_payload
 
 

aiogram/bot/bot.py

@@ -1,5 +1,5 @@
 import datetime
-import json
+from ..utils import json
 import time
 
 from .base import BaseBot

aiogram/dispatcher/__init__.py

@@ -12,7 +12,7 @@ log = logging.getLogger(__name__)
 
 class Dispatcher:
     def __init__(self, bot, loop=None):
-        self.bot: Bot = bot
+        self.bot: 'Bot' = bot
         if loop is None:
             loop = self.bot.loop
 

aiogram/types/chat.py

@@ -1,4 +1,4 @@
-from . import ChatPhoto
+from .chat_photo import ChatPhoto
 from .base import Deserializable
 
 

aiogram/utils/json.py

@@ -0,0 +1,12 @@
+try:
+    import ujson as json
+except ImportError:
+    import json
+
+
+def dumps(data):
+    return json.dumps(data)
+
+
+def loads(data):
+    return json.loads(data)

requirements.txt

@@ -1,3 +1,4 @@
+ujson
 aiohttp>=2.1.0
 appdirs>=1.4.3
 async-timeout>=1.2.1