init: build minimum viable version

channel/channel_factory.py

@@ -0,0 +1,15 @@
+"""
+channel factory
+"""
+
+from channel.wechat.wechat_channel import WechatChannel
+
+def create_channel(channel_type):
+    """
+    create a channel instance
+    :param channel_type: channel type code
+    :return: channel instance
+    """
+    if channel_type == 'wx':
+        return WechatChannel()
+    raise RuntimeError