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Building Scalable Apps with Redis and Node.js by Joshua Johanan

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Using Express in Node

With everything installed, we can create our project directory. It does not matter where you create it (I created a projects directory under my user folder), but all the files we created will be referenced from the root of this folder. To do this, create an app.js file. Note that the aim here is to build our very own, simple Express application. To get started, open app.js and add the following code to it:

var express = require('express');
var app = express();

app.get('*',function(req, res){
  res.send('Express Response');
});

app.listen(3000);
console.log("App server running on port 3000");

To start the Express server, we will run the following commands:

node app.js
npm start

The first tells Node to run using this file. The ...

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