javascript

Executing Shell Commands with Node.js

System administrators and developers frequently turn to automation to reduce their workload and improve their processes. When working with servers, automated tasks are frequently scripted with shell scripts. However, a developer might prefer to use a more general higher-level language for complex tasks. Many applications also need to interact with...

Handling Authentication in Express.js

In this article, we are going to make a simple app to demonstrate how you can handle authentication in Express.js. Since we will be using some basic ES6 syntaxes and the Bootstrap framework for UI design, it might help if you have some basic knowledge about those technologies. Even...

Publishing and Subscribing to AWS SNS Messages with Node.js

A lot of technology that we see relies on a very immediate request/response cycle - when you make a request to a website, you get a response containing the website you requested, ideally immediately. This all relies on the user making the active decision to request that data. Sometimes,...

Getting Started with Postman

Testing an application means more than just clicking around until something breaks or trying different inputs until something isn't working right. While this is a good way to find anything that might break on the user facing side of the application, due to misuse - what is being neglected is...

Sorting Arrays in JavaScript

Like many other popular languages, JavaScript conveniently comes with a built-in method for sorting arrays. While the end result is the same, the various JavaScript engines implement this method using different sort algorithms: V8: Quicksort or Insertion Sort (for smaller arrays) Firefox: Merge sort Safari: Quicksort, Merge Sort, or Selection...

Message Queueing in Node.js with AWS SQS

With the increased complexity of modern software systems, came along the need to break up systems that had outgrown their initial size. This increase in the complexity of systems made it harder to maintain, update, and upgrade them. This paved the way for microservices that allowed massive monolithic systems to...

Introduction to JavaScript Proxies in ES6

In this article, we are going to talk about JavaScript proxies which were introduced with JavaScript version ECMAScript 6 (ES6). We will use some of the existing ES6 syntax, including the spread operator in this article. So it will be helpful if you have some basic knowledge about ES6. What...

Deploying a Node.js App to a DigitalOcean Droplet with Docker

Get HTTP POST Body in Express.js

In this brief article we'll be going over how to extract information from a POST body in Express.js. The HTTP protocol provides a number of ways to pass information from a client to a server, with POST bodies being the most flexible and most commonly used method to send...