Added option to enable/disable redis session store; fixed the checks for username, password, and database number when setting up the Redis connection

config/default.json

@@ -7,6 +7,7 @@
     "driver": "sqlite",
     "connection_string": "data/overseer.db"
   },
+  "use_redis": false,
   "redis": {
     "host": "192.168.1.10",
     "port": 6379,

index.js

@@ -1,7 +1,7 @@
 const express = require('express');
 const session = require('express-session');
 const RedisStore = require('connect-redis')(session);
-// const flash = require('express-flasher');
+// const flash = require('@bitgoblin/express-flasher');
 
 // instantiate new express.js app
 const app = express();
@@ -15,18 +15,27 @@ const config = require('config');
   });
 })();
 
-// initialize Redis store for session data
-const redisClient = require('./src/redis');
+if (config.get('use_redis')) {
+  // initialize Redis store for session data
+  const redisClient = require('./src/redis');
 
-// initialize express.js session w/ Redis datastore
-app.use(session({
-  store: new RedisStore({
-    client: redisClient,
-  }), // use Redis datastore
-  resave: false, // don't save session if unmodified
-  saveUninitialized: false, // don't create session until something stored
-  secret: 'lord of the rings',
-}));
+  // initialize express.js session w/ Redis datastore
+  app.use(session({
+    store: new RedisStore({
+      client: redisClient,
+    }), // use Redis datastore
+    resave: false, // don't save session if unmodified
+    saveUninitialized: false, // don't create session until something stored
+    secret: 'lord of the rings',
+  }));
+} else {
+  // initialize express.js session w/ Redis datastore
+  app.use(session({
+    resave: false, // don't save session if unmodified
+    saveUninitialized: false, // don't create session until something stored
+    secret: 'lord of the rings',
+  }));
+}
 
 // setup flash messaging
 // app.use(flash.flash());

src/redis.js

@@ -4,11 +4,11 @@ exports.default = function() {
   let redisUrl = 'redis://';
 
   // add the redis username if defined
-  if (typeof redisConfig.get('username') !== 'undefined') {
+  if (redisConfig.has('username')) {
     redisUrl += redisConfig.get('username');
   }
   // add the user password if defined
-  if (typeof redisConfig.get('password') !== 'undefined') {
+  if (redisConfig.has('password')) {
     redisUrl += ':' + redisConfig.get('password') + '@';
   }
   // add redis host URL
@@ -16,7 +16,7 @@ exports.default = function() {
   // add redis host port
   redisUrl += ':' + redisConfig.get('port');
   // add redis database number if defined
-  if (typeof redisConfig.get('number') !== 'undefined') {
+  if (redisConfig.has('number')) {
     redisUrl += redisConfig.get('number');
   }