Apply Javascript styleguide

lib/redis.js

@@ -9,17 +9,20 @@ const redisUrl = process.env.REDIS_URL || process.env.REDISTOGO_URL || 'redis://
 
 const connection = new Promise((resolve, reject) => {
   debug('Connecting to Redis');
-  resolve(redis.connect(redisUrl));
+  const client = redis.connect(redisUrl);
+  client.on('error', reject);
+  resolve(client);
 }).catch((err) => {
   debug('Connection error: ' + err);
+  throw err;
 });
 
 const redisSession = new Promise((resolve, reject) => {
   return connection.then((client) => {
-    client = koaRedis({client: client});
+    const sessionClient = koaRedis({client: client});
     resolve(session({
       key: 'hid',
-      store: client
+      store: sessionClient,
     }));
   }).catch((err) => {
     debug('koa-redis error: ' + err);
@@ -29,31 +32,29 @@ const redisSession = new Promise((resolve, reject) => {
 
 const wrapped = new Promise((resolve, reject) => {
   return connection.then((client) => {
-    client = coRedis(client);
-    client.on('error', (err) => {
-      debug('Client error: ' + err);
-      reject(err);
-    });
-    client.on('ready', () => {
+    const asyncClient = coRedis(client);
+    asyncClient.on('error', reject);
+    asyncClient.on('ready', () => {
       debug('Successfully connected to Redis');
-      resolve(client);
+      resolve(asyncClient);
     });
   }).catch((err) => {
     debug('co-redis error: ' + err);
     reject(err);
+    throw err;
   });
 });
 
 export function sessionStore() {
-  return function* (next) {
+  return function* sessionStoreMiddleware(next) {
     const sess = yield redisSession;
     yield sess.bind(this)(next);
-  }
+  };
 }
 
 export function middleware() {
-  return function* (next) {
+  return function* redisMiddleware(next) {
     this.redis = yield wrapped;
     yield next;
-  }
+  };
 }