app.js

//jshint esversion:6
require('dotenv').config();
const express = require("express");
const bodyParser = require("body-parser");
const ejs = require("ejs");
const mongoose = require("mongoose");
const encrypt = require("mongoose-encryption");

const app = express();
app.use(express.static("public"));
app.set('view engine', 'ejs');
app.use(bodyParser.urlencoded({extended:true}));

mongoose.connect("mongodb://localhost:27017/userDB",{useNewUrlParser:true});

const userSchema = new mongoose.Schema ({
  email:String,
  password:String
});

//secret key  --> stored in .env file
userSchema.plugin(encrypt, { secret: process.env.SECRET, encryptedFields:['password'] });

const User = new mongoose.model("User",userSchema);


app.get("/",function(req,res){
  res.render("home");
});

app.get("/login",function(req,res){
  res.render("login");
});

app.get("/register",function(req,res){
  res.render("register");
});

app.post("/register",function(req,res){

  const newUser = new User({
    email:req.body.username,
    password:req.body.password
  });

  newUser.save(function(err){
    if(!err){
      res.render("secrets");
    }else{
      console.log(err);
    }
  });
});

app.post("/login",function(req,res){

  const username = req.body.username;
  const password = req.body.password;

  User.findOne({email:username},function(err,foundUser){
    if(err){
      console.log(err);
    }else{
      if(foundUser){
        if(foundUser.password === password){
          res.render("secrets");
        }
      }
    }
  })
});

app.listen(3000,function(){
  console.log("server started on port 3000");
});