https redirect

Author: maxchistt

README.md

@@ -8,7 +8,7 @@ Open [mern-notesapp.herokuapp.com](https://mern-notesapp.herokuapp.com/) or [rea
 
 ## Development
 
-First of all, set up your project by creating .env file with next content:
+First of all, set up your project by creating `.env` file with next content:
 
 ```env
 mongoUri = "<YOUR MONGO URI>"
@@ -57,7 +57,8 @@ module.exports = {
       "max-memory-restart": "150MB",
       env: {
         NODE_ENV: "production",
-        mongoUri: "<YOUR MONGO URI>",
+        mongoUri: "<YOUR MONGO URI>" /*replace this*/,
+        httpsRedirect: false /*true if enable*/,
       },
     },
   ],
@@ -69,5 +70,8 @@ module.exports = {
 - Create Heroku app
 - Connect to GitHub repo
 - Add Node.js buildpack in settings
-- Add config vars
+- Add config vars:
+  - NODE_ENV: production
+  - mongoUri: YOUR MONGO URI
+  - httpsRedirect: true
 - Click "Deploy branch" button

app.js

@@ -8,6 +8,7 @@ require('dotenv').config()
 const devMode = process.env.NODE_ENV === "dev"
 const PORT = process.env.PORT || 5000
 const mongoUri = process.env.mongoUri
+const httpsRedirect = process.env.httpsRedirect || false
 
 //temporary backend url
 const phpBaseUrl = 'http://php-server-notes.std-1033.ist.mospolytech.ru/'
@@ -24,6 +25,7 @@ app.post('/server', function (req, res) {
 })
 
 if (!devMode) {
+    if (httpsRedirect) app.use(httpToHttps)
     app.use('/', express.static(path.join(__dirname, 'client', 'build')))
     app.get('*', (req, res) => {
         res.sendFile(path.resolve(__dirname, 'client', 'build', 'index.html'))
@@ -61,4 +63,12 @@ function logServerStart(PORT) {
         console.log(`${bef} Local${af}            http://localhost:${PORT}`)
         console.log(`${bef} On Your Network${af}  http://${address}:${PORT}`)
     })
+}
+
+function httpToHttps(req, res, next) {
+    if (req.header('x-forwarded-proto') !== 'https') {
+        res.redirect(`https://${req.header('host')}${req.url}`)
+    } else {
+        next()
+    }
 }