How to create login and registration API in node.js using MVC.

Node.js modules used in this

   "bcrypt-nodejs": "0.0.3", //A native JS bcrypt library for NodeJS.used for encrypt and decry-pt password.
   "body-parser": "^1.13.3", //parse body from all incoming requests
   "cookie-parser": "^1.3.5", //Parse Cookie header and populate req.cookies with an object keyed by the    cookie names
   "express": "^4.13.3", //Fast, unopinionated, minimalist web framework
   "express-validation": "^0.4.4",  //express-validation is a middleware that validates the body, params, query, headers and cookies of a request and returns a response with errors; if any of the configured validation rules fail.
   "joi": "^6.6.1", //Object schema description language and validator for JavaScript objects.

   "jsonwebtoken": "^5.0.5", //An implementation of JSON Web Tokens.to provide a token based access for end points.
   "mongoose": "^4.1.5", //Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment.
   "morgan": "^1.6.1",  //HTTP request logger middleware for node.js
   "nodemon": "^1.5.1"  //very usefull module, auto restart node sever after file changes.

Install

1. clone the branch
2. go to project directory
3. run command to install all required module npm install(make sure node is installed on your machine/server)
4. run nodemon app.js will start your node server.
5. access http://localhost:8000

File Structure

1. app.js is main file when node starts, it do all checks here and load required module.

2. below are the code lines in app.js where redirect t route file var routes = require('./app/routes'); //under app folder routes the file where all routes are defined. app.use('/', routes); //all routes are defined under routes.

3. /app/routes.js is file where all routes/end points are define. and each route is calling corresponding /app/controllers.

4. /app/models has all required models and can be loaded through same as any modules loads in node.

5. /app/utils/validations.js is file which have defined all validations for incoming routes by using JOI. if they do not pass it a error message sent back as response by using middleware in app.js //error handler, if request parameters do not fullfil validations a error message would be sent back as response.

   (app.use(function (err, req, res, next) { // specific for validation errors if (err instanceof validate.ValidationError) { return res.json({status: err.status, errorMessage: err}); } }); )

6. /app/config/index.js has all defined configuration parameters, you can also us them by encrypting.