node

Author: daviskamau

node_passport_login/README.md

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+# Node.js & Passport Login
+
+This is a user login and registration app using Node.js, Express, Passport, Mongoose, EJS and some other packages.
+
+### Version: 2.0.0
+
+### Usage
+
+```sh
+$ npm install
+```
+
+```sh
+$ npm start
+# Or run with Nodemon
+$ npm run dev
+
+# Visit http://localhost:5000
+```
+
+### MongoDB
+
+Open "config/keys.js" and add your MongoDB URI, local or Atlas

node_passport_login/app.js

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+const express = require('express');
+const expressLayouts = require('express-ejs-layouts');
+const mongoose = require('mongoose');
+const passport = require('passport');
+const flash = require('connect-flash');
+const session = require('express-session');
+
+const app = express();
+
+// Passport Config
+require('./config/passport')(passport);
+
+// DB Config
+const db = require('./config/keys').mongoURI;
+
+// Connect to MongoDB
+mongoose
+  .connect(
+    db,
+    { useNewUrlParser: true ,useUnifiedTopology: true}
+  )
+  .then(() => console.log('MongoDB Connected'))
+  .catch(err => console.log(err));
+
+// EJS
+app.use(expressLayouts);
+app.set('view engine', 'ejs');
+
+// Express body parser
+app.use(express.urlencoded({ extended: true }));
+
+// Express session
+app.use(
+  session({
+    secret: 'secret',
+    resave: true,
+    saveUninitialized: true
+  })
+);
+
+// Passport middleware
+app.use(passport.initialize());
+app.use(passport.session());
+
+// Connect flash
+app.use(flash());
+
+// Global variables
+app.use(function(req, res, next) {
+  res.locals.success_msg = req.flash('success_msg');
+  res.locals.error_msg = req.flash('error_msg');
+  res.locals.error = req.flash('error');
+  next();
+});
+
+// Routes
+app.use('/', require('./routes/index.js'));
+app.use('/users', require('./routes/users.js'));
+
+const PORT = process.env.PORT || 5000;
+
+app.listen(PORT, console.log(`Server running on  ${PORT}`));

node_passport_login/config/auth.js

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+module.exports = {
+  ensureAuthenticated: function(req, res, next) {
+    if (req.isAuthenticated()) {
+      return next();
+    }
+    req.flash('error_msg', 'Please log in to view that resource');
+    res.redirect('/users/login');
+  },
+  forwardAuthenticated: function(req, res, next) {
+    if (!req.isAuthenticated()) {
+      return next();
+    }
+    res.redirect('/dashboard');      
+  }
+};

node_passport_login/config/keys.js

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+dbPassword = 'mongodb+srv://YOUR_USERNAME_HERE:'+ encodeURIComponent('YOUR_PASSWORD_HERE') + '@CLUSTER_NAME_HERE.mongodb.net/test?retryWrites=true';
+
+module.exports = {
+    mongoURI: dbPassword
+};

node_passport_login/config/passport.js

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+const LocalStrategy = require('passport-local').Strategy;
+const bcrypt = require('bcryptjs');
+
+// Load User model
+const User = require('../models/User');
+
+module.exports = function(passport) {
+  passport.use(
+    new LocalStrategy({ usernameField: 'email' }, (email, password, done) => {
+      // Match user
+      User.findOne({
+        email: email
+      }).then(user => {
+        if (!user) {
+          return done(null, false, { message: 'That email is not registered' });
+        }
+
+        // Match password
+        bcrypt.compare(password, user.password, (err, isMatch) => {
+          if (err) throw err;
+          if (isMatch) {
+            return done(null, user);
+          } else {
+            return done(null, false, { message: 'Password incorrect' });
+          }
+        });
+      });
+    })
+  );
+
+  passport.serializeUser(function(user, done) {
+    done(null, user.id);
+  });
+
+  passport.deserializeUser(function(id, done) {
+    User.findById(id, function(err, user) {
+      done(err, user);
+    });
+  });
+};

node_passport_login/models/User.js

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+const mongoose = require('mongoose');
+
+const UserSchema = new mongoose.Schema({
+  name: {
+    type: String,
+    required: true
+  },
+  email: {
+    type: String,
+    required: true
+  },
+  password: {
+    type: String,
+    required: true
+  },
+  date: {
+    type: Date,
+    default: Date.now
+  }
+});
+
+const User = mongoose.model('User', UserSchema);
+
+module.exports = User;