Update

src/nucleus/cli/server.py

@@ -39,11 +39,12 @@ async def server_run():
         host,
         port
     )
-    async with server:
-        await server.serve_forever()
 
     print(f"======= Serving on http://{host}:{port}/ ======")
 
+    async with server:
+        await server.serve_forever()
+
 
 def handler_server(args):
     loop.add_signal_handler(

src/nucleus/domains/http/models/preset.py

@@ -0,0 +1,12 @@
+__author__ = 'RemiZOffAlex'
+__email__ = 'remizoffalex@mail.ru'
+
+from .response import Response
+
+
+def abort(code, message=''):
+    return Response(
+        message,
+        mimetype='text/plain',
+        code=404
+    )

src/nucleus/domains/http/models/response.py

@@ -7,7 +7,12 @@ class Response:
         self.code = 200
         self.phrase = 'Success'
         self.version = 'HTTP/1.1'
+        self.headers = {}
+        self.content_type = "text/plain"
         self.__data = data
+        for key in kwargs:
+            if key in self.__dict__:
+                setattr(self, key, kwargs[key])
 
     def __call__(self):
         status = ' '.join([self.version, str(self.code), self.phrase])