changed settings access

apistar_redis/redis_backend.py

@@ -1,3 +1,43 @@
 import redis
 
-from apistar import Command, Component, Settings
+from apistar import Component, Settings
+
+
+class RedisBackend:
+    def __init__(self, settings: Settings) -> None:
+        """
+        Configure a new redis backend
+
+        Args:
+            settings: The application settings dictionary
+
+        """
+
+        redis_config = settings['REDIS']
+        self.host = redis_config.get('HOST')
+        self.port = redis_config.get('PORT')
+        self.password = redis_config.get('PASSWORD')
+
+        # TODO add connection pooling
+
+
+class Client:
+    def __init__(self, backend: RedisBackend):
+        self.backend = backend
+
+
+def get_redis_client(backend: RedisBackend):
+    """
+    Create a new redis session
+
+    """
+    client = redis.Redis(host=backend.host,
+                         port=backend.port,
+                         password=backend.password)
+    return client
+
+
+components = [
+    Component(RedisBackend),
+    Component(Client, init=get_redis_client)
+]