diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,20 @@
+Copyright (c) 2014 Hirotomo Moriwaki
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/apiary-redis.cabal b/apiary-redis.cabal
new file mode 100644
--- /dev/null
+++ b/apiary-redis.cabal
@@ -0,0 +1,32 @@
+name:                apiary-redis
+version:             1.5.0
+synopsis:            redis support for apiary web framework.
+description:
+  example: <https://github.com/philopon/apiary/blob/master/examples/redis.hs>
+license:             MIT
+license-file:        LICENSE
+author:              Winter Han<drkoster@qq.com>
+maintainer:          Winter Han<drkoster@qq.com>
+Homepage:            https://github.com/philopon/apiary
+Bug-reports:         https://github.com/philopon/apiary/issues
+copyright:           (c) 2017 Winter Han
+category:            Web
+build-type:          Simple
+stability:           stable
+-- extra-source-files:  
+cabal-version:       >=1.10
+
+library
+  exposed-modules:     Web.Apiary.Database.Redis
+  build-depends:       base               >=4.7   && <5.0
+                     , hedis              >= 0.9.0   && <1.0
+                     , apiary             >=2.1   && <3.0
+                     , transformers       >=0.2   && <0.6
+
+  hs-source-dirs:      src
+  ghc-options:         -O2 -Wall
+  default-language:    Haskell2010
+
+source-repository head
+  type:     git
+  location: git://github.com/philopon/apiary.git
diff --git a/src/Web/Apiary/Database/Redis.hs b/src/Web/Apiary/Database/Redis.hs
new file mode 100644
--- /dev/null
+++ b/src/Web/Apiary/Database/Redis.hs
@@ -0,0 +1,48 @@
+{-# LANGUAGE UndecidableInstances #-}
+{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE TypeOperators #-}
+{-# LANGUAGE Rank2Types #-}
+{-# LANGUAGE LambdaCase #-}
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE GADTs #-}
+
+module Web.Apiary.Database.Redis
+    ( -- * initializer
+      initRedis
+    -- * query
+    , runRedis
+    , runRedisTx
+    ) where
+
+import Control.Monad.IO.Class(MonadIO(..))
+import qualified Database.Redis as Redis
+import Data.Proxy(Proxy(..))
+import Data.Apiary.Extension
+    (Has, Initializer, initializer', Extension, MonadExts, getExt)
+
+newtype RedisConn = RedisConn Redis.Connection
+
+instance Extension RedisConn
+
+-- | construct persist extension initializer with no connection pool.
+--
+-- example:
+--
+-- @
+-- initPersist (withSqliteConn "db.sqlite") migrateAll
+-- @
+initRedis :: (Monad m)
+             => Redis.Connection -> Initializer m exts (RedisConn ': exts)
+initRedis conn = initializer' $ return (RedisConn conn)
+
+runRedis :: (MonadExts es m, Has RedisConn es, MonadIO m) => Redis.Redis a -> m a
+runRedis r = do
+    getExt (Proxy :: Proxy RedisConn) >>= \ (RedisConn c) ->
+        liftIO $ Redis.runRedis c r
+
+runRedisTx :: (MonadExts es m, Has RedisConn es, MonadIO m)
+           => Redis.RedisTx (Redis.Queued a) -> m (Redis.TxResult a)
+runRedisTx r = do
+    getExt (Proxy :: Proxy RedisConn) >>= \ (RedisConn c) ->
+        liftIO . Redis.runRedis c $ Redis.multiExec r