diff --git a/lib/dingtalk/api/base.rb b/lib/dingtalk/api/base.rb
index 6d2b9fe..a997eb6 100644
--- a/lib/dingtalk/api/base.rb
+++ b/lib/dingtalk/api/base.rb
@@ -11,7 +11,7 @@ module Dingtalk
       end
 
       def access_token
-        token = redis.get("#{@corp.corp_id}_#{ACCESS_TOKEN}")
+        token = redis.get("#{redis_prefix}:#{@corp.corp_id}_#{ACCESS_TOKEN}")
         token.to_s.empty? ? set_access_token : token
       end
 
@@ -24,25 +24,26 @@ module Dingtalk
       end
 
       def js_ticket
-        ticket = redis.get("#{@corp.corp_id}_#{JS_TICKET}")
+        ticket = redis.get("#{redis_prefix}:#{@corp.corp_id}_#{JS_TICKET}")
         ticket.to_s.empty? ? set_js_ticket : ticket
       end
 
       def set_corp_access_token
         res = http_get("#{ENDPOINT}/gettoken?corpid=#{@corp.corp_id}&corpsecret=#{@corp.corp_secret}")
-        key = "#{@corp.corp_id}_#{ACCESS_TOKEN}"
-        redis.set(key, res['access_token'])
-        redis.expire(key, 6600)
-        redis.get(key)
+        key = "#{redis_prefix}:#{@corp.corp_id}_#{ACCESS_TOKEN}"
+        redis.set(key, res['access_token'], {ex: 6600})
+        res['access_token']
       end
 
       def set_js_ticket
-        key = "#{@corp.corp_id}_#{JS_TICKET}"
+        key = "#{redis_prefix}:#{@corp.corp_id}_#{JS_TICKET}"
         res = http_get("#{ENDPOINT}/get_jsapi_ticket?access_token=#{access_token}")
-        redis.set(key, res['ticket'])
-        # redis.expire(key, res['expires_in'])
-        redis.expire(key, 6600)
-        redis.get(key)
+        redis.set(key, res['ticket'], {ex: 6600})
+        res['ticket']
+      end
+
+      def redis_prefix
+        Dingtalk.config.redis_prefix || 'dingtalk'
       end
 
       private
diff --git a/lib/dingtalk/api/sns.rb b/lib/dingtalk/api/sns.rb
index 0c4428c..c723206 100644
--- a/lib/dingtalk/api/sns.rb
+++ b/lib/dingtalk/api/sns.rb
@@ -9,15 +9,14 @@ module Dingtalk
       end
 
       def access_token
-        token = redis.get(ACCESS_TOKEN)
+        token = redis.get("#{redis_prefix}:#{ACCESS_TOKEN}")
         token.to_s.empty? ? set_access_token : token
       end
 
       def set_access_token
         res = http_get("gettoken?appid=#{@app_id}&appsecret=#{@app_secret}")
-        redis.set(ACCESS_TOKEN, res['access_token'])
-        redis.expire(ACCESS_TOKEN, 6600)
-        redis.get(ACCESS_TOKEN)
+        redis.set("#{redis_prefix}:#{ACCESS_TOKEN}", res['access_token'], {ex: 6600})
+        res['access_token']
       end
 
       def get_persistent_code(code)
diff --git a/lib/dingtalk/api/suite.rb b/lib/dingtalk/api/suite.rb
index a44d2e2..c263adb 100644
--- a/lib/dingtalk/api/suite.rb
+++ b/lib/dingtalk/api/suite.rb
@@ -18,7 +18,7 @@ module Dingtalk
       end
 
       def suite_access_token
-        token = redis.get(SUITE_ACCESS_TOKEN)
+        token = redis.get("#{redis_prefix}:#{SUITE_ACCESS_TOKEN}")
         token.to_s.empty? ? set_suite_access_token : token
       end
 
@@ -30,9 +30,8 @@ module Dingtalk
         }
         res = http_post('get_suite_token', params)
         # TODO globally check response values
-        redis.set(SUITE_ACCESS_TOKEN, res['suite_access_token'])
-        redis.expire(SUITE_ACCESS_TOKEN, EXPIRATION)
-        redis.get(SUITE_ACCESS_TOKEN)
+        redis.set("#{redis_prefix}:#{SUITE_ACCESS_TOKEN}", res['suite_access_token'], {ex: EXPIRATION})
+        res['suite_access_token']
       end
 
       def set_corp_access_token(corp_id, permanent_code)
@@ -41,9 +40,8 @@ module Dingtalk
           auth_corpid: corp_id
         }
         res = http_post("get_corp_token?suite_access_token=#{suite_access_token}", params)
-        redis.set("#{corp_id}_#{ACCESS_TOKEN}", res['access_token'])
-        redis.expire("#{corp_id}_#{ACCESS_TOKEN}", EXPIRATION)
-        redis.get("#{corp_id}_#{ACCESS_TOKEN}")
+        redis.set("#{redis_prefix}:#{corp_id}_#{ACCESS_TOKEN}", res['access_token'], {ex: EXPIRATION})
+        res['access_token']
       end
 
       def activate_suite(corp_id, permanent_code)
@@ -66,7 +64,7 @@ module Dingtalk
       end
 
       def suite_ticket
-        redis.get(SUITE_TICKET)
+        redis.get("#{redis_prefix}:#{SUITE_TICKET}")
       end
 
       private
diff --git a/lib/dingtalk/config.rb b/lib/dingtalk/config.rb
index 6f90d3f..efdbb51 100644
--- a/lib/dingtalk/config.rb
+++ b/lib/dingtalk/config.rb
@@ -3,7 +3,7 @@ module Dingtalk
     attr_accessor :config
 
     def configure
-    yield self.config ||= Config.new
+      yield self.config ||= Config.new
     end
 
     def dingtalk_redis
@@ -37,6 +37,6 @@ module Dingtalk
   end
 
   class Config
-    attr_accessor :redis, :redis_options, :suite_key, :suite_secret, :suite_aes_key, :suite_token, :sns_app_id, :sns_app_secret
+    attr_accessor :redis, :redis_prefix, :redis_options, :suite_key, :suite_secret, :suite_aes_key, :suite_token, :sns_app_id, :sns_app_secret
   end
 end
--
libgit2 0.21.0