Allow to use RapidJSON. Allow to disable uvloop, ujson or rapidjson by env. variables.

aiogram/__init__.py

@@ -1,4 +1,5 @@
 import asyncio
+import os
 
 from .bot import Bot
 from .dispatcher import Dispatcher
@@ -8,7 +9,8 @@ try:
 except ImportError:
     uvloop = None
 else:
-    asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
+    if 'DISABLE_UVLOOP' not in os.environ:
+        asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
 
 __version__ = '2.0.dev1'
 __api_version__ = '3.6'

aiogram/utils/json.py

@@ -1,27 +1,52 @@
-import json
+import os
+
+JSON = 'json'
+RAPIDJSON = 'rapidjson'
+UJSON = 'ujson'
 
 try:
-    import ujson
+    if 'DISABLE_UJSON' not in os.environ:
+        import ujson as json
 
-    _UJSON_IS_AVAILABLE = True
+        mode = UJSON
+
+
+        def dumps(data):
+            return json.dumps(data, ensure_ascii=False)
+
+    else:
+        mode = JSON
 except ImportError:
-    _UJSON_IS_AVAILABLE = False
+    mode = JSON
 
-_use_ujson = _UJSON_IS_AVAILABLE
+try:
+    if 'DISABLE_RAPIDJSON' not in os.environ:
+        import rapidjson as json
+
+        mode = RAPIDJSON
 
 
-def disable_ujson():
+        def dumps(data):
-    global _use_ujson
+            return json.dumps(data, ensure_ascii=False, number_mode=json.NM_NATIVE,
-    _use_ujson = False
+                              datetime_mode=json.DM_ISO8601 | json.DM_NAIVE_IS_UTC)
 
 
-def dumps(data):
+        def loads(data):
-    if _use_ujson:
+            return json.loads(data, number_mode=json.NM_NATIVE,
-        return ujson.dumps(data)
+                              datetime_mode=json.DM_ISO8601 | json.DM_NAIVE_IS_UTC)
-    return json.dumps(data)
+
+    else:
+        mode = JSON
+except ImportError:
+    mode = JSON
+
+if mode == JSON:
+    import json
 
 
-def loads(data):
+    def dumps(data):
-    if _use_ujson:
+        return json.dumps(data, ensure_ascii=False)
-        return ujson.loads(data)
+
-    return json.loads(data)
+
+    def loads(data):
+        return json.loads(data)

dev_requirements.txt

@@ -1,6 +1,7 @@
 -r requirements.txt
 
 ujson>=1.35
+python-rapidjson>=0.6.3
 emoji>=0.5.0
 pytest>=3.5.0
 pytest-asyncio>=0.8.0