.env added and .env example.

.env.example

@@ -0,0 +1,2 @@
+JWT_SECRET=<add secret key here>
+DATABASE_CONNECTION=<add mongodb connection string here>

app.js

@@ -17,13 +17,17 @@ const mongoose = require('mongoose');
 /*******************************************************************************/
 
 mongoose.Promise = global.Promise;
-try {
-  mongoose.connect(process.env.DATABASE_CONNECTION);
-  console.log('Connected to Mongodb :- DataBase listening on Port 27017');
-} catch(e){
-  console.log('ERROR :- Could not connect to your MongoDb DataBase');
-}
-
+
+
+/**
+ * Mongoose Database connection
+ * @params connection {string}
+ * @returns {promise} 
+ */
+mongoose.connect(process.env.DATABASE_CONNECTION, { userNewUrlParser: true }).then(
+	() => { console.log("\x1b[32m%s\x1b[0m", 'Connected to Mongodb :- DataBase listening on Port 27017'); },
+	err => { console.log("\x1b[31m%s\x1b[0m", 'ERROR :- Could not connect to your MongoDb DataBase', err); }
+);
 
 
 const app = express();
@@ -44,20 +48,20 @@ app.use('/users', users);
 
 // catch 404 and forward to error handler
 app.use(function (req, res, next) {
-  let err = new Error('Not Found');
-  err.status = 404;
-  next(err);
+	let err = new Error('Not Found');
+	err.status = 404;
+	next(err);
 });
 
 // error handler
 app.use(function (err, req, res, next) {
-  // set locals, only providing error in development
-  res.locals.message = err.message;
-  res.locals.error = req.app.get('env') === 'development' ? err : {};
+	// set locals, only providing error in development
+	res.locals.message = err.message;
+	res.locals.error = req.app.get('env') === 'development' ? err : {};
 
-  // render the error page
-  res.status(err.status || 500);
-  res.render('error');
+	// render the error page
+	res.status(err.status || 500);
+	res.render('error');
 });
 
 module.exports = app;

controllers/authentication.js

@@ -5,51 +5,51 @@ const jwt = require('jwt-simple');
 
 //create jwt-token and set subject, timestamp and secret
 function createJwtToken(user) {
-    const timestamp = new Date().getDate();
-    return jwt.encode({ sub: user.id, iat: timestamp }, process.env.JWT_SECRET)
+	const timestamp = new Date().getDate();
+	return jwt.encode({ sub: user.id, iat: timestamp }, process.env.JWT_SECRET)
 };
 
 
 //authorized just need to issue a jwt_token
 exports.signin = (req, res, next) => {
-    res.send({ jwt_web_token: createJwtToken(req.user) })
+	res.send({ jwt_web_token: createJwtToken(req.user) })
 }
 
 exports.signup = (req, res, next) => {
-    const email = req.body.email;
-    const password = req.body.password;
-
-    if (!email || !password) {
-        return res.status(422).send({ error: 'Email and Password are required' })
-        
-    }
-
-    /****************add email validation********************/
-
-
-    //does user with email exist?
-    User.findOne({ email }, (err, existingUser) => {
-        if (err) {
-            return next(err);
-        }
-
-        //if email already exists return error message
-        if (existingUser) {
-            return res.send(422, { error: 'Email already exists' })
-        }
-        //if new user create new User and return JWT_TOKEN 
-        const user = new User({
-            email: email,
-            password: password
-        });
-        user.save((err) => {
-            if (err) {
-                return next(err);
-            }
-            res.send({ jwt_web_token: createJwtToken(user) });
-        });
-
-    });
+	const email = req.body.email;
+	const password = req.body.password;
+
+	if (!email || !password) {
+		return res.status(422).send({ error: 'Email and Password are required' })
+
+	}
+
+	/****************add email validation********************/
+
+
+	//does user with email exist?
+	User.findOne({ email }, (err, existingUser) => {
+		if (err) {
+			return next(err);
+		}
+
+		//if email already exists return error message
+		if (existingUser) {
+			return res.send(422, { error: 'Email already exists' })
+		}
+		//if new user create new User and return JWT_TOKEN 
+		const user = new User({
+			email: email,
+			password: password
+		});
+		user.save((err) => {
+			if (err) {
+				return next(err);
+			}
+			res.send({ jwt_web_token: createJwtToken(user) });
+		});
+
+	});
 
 };