Node.js
- Getting started with Node.js
- Awesome Book
- Awesome Community
- Awesome Course
- Awesome Tutorial
- Awesome YouTube
- Arduino communication with nodeJs
- async.js
- Async/Await
- Asynchronous programming
- Autoreload on changes
- Avoid callback hell
- Bluebird Promises
- Callback to Promise
- Cassandra Integration
- CLI
- Client-server communication
- Cluster Module
- Connect to Mongodb
- Creating a Node.js Library that Supports Both Promises and Error-First Callbacks
- Creating API's with Node.js
- csv parser in node js
- Database (MongoDB with Mongoose)
- Debugging Node.js application
- Deliver HTML or any other sort of file
- Dependency Injection
- Deploying Node.js application without downtime.
- Deploying Node.js applications in production
- ECMAScript 2015 (ES6) with Node.js
- Environment
- Event Emitters
- Eventloop
- Exception handling
- Executing files or commands with Child Processes
- Exporting and Consuming Modules
- Exporting and Importing Module in node.js
- File upload
- Filesystem I/O
- Getting started with Nodes profiling
- Good coding style
- Graceful Shutdown
- grunt
- Hack
- Handling POST request in Node.js
- How modules are loaded
- http
- Installing Node.js
- Interacting with Console
- Keep a node application constantly running
- Koa Framework v2
- Lodash
- Loopback - REST Based connector
- metalsmith
- Mongodb integration
- MongoDB Integration for Node.js/Express.js
- Mongoose Library
- MSSQL Intergration
- Multithreading
- Mysql Connection Pool
- MySQL integration
- N-API
- Node JS Localization
- Node server without framework
- Node.js (express.js) with angular.js Sample code
- Node.JS and MongoDB.
- Node.js Architecture & Inner Workings
- Node.js code for STDIN and STDOUT without using any library
- Node.js Design Fundamental
- Node.js Error Management
- Node.js Performance
- Node.js v6 New Features and Improvement
- Node.js with CORS
- Node.JS with ES6
- Node.js with Oracle
- NodeJS Beginner Guide
- NodeJS Frameworks
- Nodejs History
- NodeJs Routing
- NodeJS with Redis
- npm
- nvm - Node Version Manager
- OAuth 2.0
- package.json
- Parsing command line arguments
- Passport integration
- passport.js
- Performance challenges
- PostgreSQL integration
- Project Structure
- Push notifications
- Readline
- Remote Debugging in Node.JS
- Require()
- Restful API Design: Best Practices
- Route-Controller-Service structure for ExpressJS
- Routing ajax requests with Express.JS
- Running node.js as a service
- Securing Node.js applications
- Send Web Notification
- Sending a file stream to client
- Sequelize.js
- Simple REST based CRUD API
- Socket.io communication
- Synchronous vs Asynchronous programming in nodejs
- TCP Sockets
- Template frameworks
- Uninstalling Node.js
- Unit testing frameworks
- Use Cases of Node.js
- Using Browserfiy to resolve 'required' error with browsers
- Using IISNode to host Node.js Web Apps in IIS
- Using Streams
- Using WebSocket's with Node.JS
- Web Apps With Express
- Getting Started
- Adding Middleware
- Basic routing
- Custom middleware in Express
- Error handling
- Error Handling
- Error handling in Express
- Getting info from the request
- Handling POST Requests
- Hello World
- Hook: How to execute code before any req and after any res
- JSON API with ExpressJS
- Modular express application
- Named routes in Django-style
- Serving static files
- Setting cookies with cookie-parser
- Using a Template Engine
- Using middleware and the next callback
- Windows authentication under node.js
- Yarn Package Manager
Node.js Web Apps With Express Adding Middleware
Example
Middleware functions are functions that have access to the request object (req), the response object (res), and the next middleware function in the application’s request-response cycle.
Middleware functions can execute any code, make changes to res and req objects, end response cycle and call next middleware.
Very common example of middleware is cors module. To add CORS support, simply install it, require it and put this line:
app.use(cors());
before any routers or routing functions.
