Use Pusher, React, Node, and Express to create a realtime web applicationThis tutorial was written by Chris Nwamba and originally appeared on the Pusher Blog.A realtime application is a program that functions within a time frame that the user senses as immediate or current. Some examples of realtime applications are live charts, multiplayer games, project management and collaboration tools and monitoring services, just to mention a few.Today, we'll be creating a realtime paint application. Using our application, users can easily collaborate while using the application and receive changes in realtime. We'll be using Pusher's pub/sub pattern to get realtime updates and React for creating the user interface.To follow this tutorial a basic understanding of React and Node.js is required. Please also ensure that you have at least Node version 6 installed before you begin.We'll be using these four tools to build our application:ExpressNodePusherReactHere's a screenshot of the final product:INITIALIZING THE APPLICATION AND INSTALLING DEPENDENCIESTo get started, we will use create-react-app to bootstrap our application.


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