app: remove empty password

index.js

@@ -71,7 +71,7 @@ if (config.cacheType === 'memory') {
                 logger.error('Redis error: ', e);
             },
             onconnect: () => {
-                logger.info('Redis connect.');
+                logger.info('Redis connected.');
             },
         })
     );

middleware/redis-cache.js

@@ -26,6 +26,9 @@ module.exports = function(options = {}) {
     /**
      * redisClient
      */
+    if (!redisOptions.password) {
+        delete redisOptions.password;
+    }
     const redisClient = wrapper(Redis.createClient(redisUrl, redisOptions));
     redisClient.on('error', (error) => {
         redisAvailable = false;