Node.js

Learn how to interface a Node.js application with the Google Analytics API by using the official googleapis package. In this blog, we will use a JSON Web Token for authentication and provide examples of API interaction. Note: uBlock Origin blocks the images on this post because they have the word “analytics” in the path. To view the images, please disable uBlock Origin for this page. In this blog post, we will show some examples of how to use the Google Analytics API with Node....

Johnny Five is a fantastic library that allows developers to communicate with electronic devices using JavaScript. While devices like Arduino are typically programmed in the Arduino Language, Johnny Five enables us to interface with Arduino using JavaScript, particularly in Node.js. Setting up your Arduino to work with Johnny Five To get started, follow these steps: Download the Arduino IDE from http://arduino.cc/en/main/software. Connect your Arduino board to a USB port on your computer....

The env command is a versatile tool used in Linux, macOS, WSL, and UNIX environments to run commands while manipulating and interacting with environment variables. Passing Environment Variables One of the main use cases for the env command is to pass environment variables to a command, without permanently setting them in the current shell. For example, if you want to run a Node.js app and set the USER variable to it, you can use the env command as follows:...

When working with Node.js, you may often need to retrieve a list of files contained within a folder. Fortunately, it’s quite simple to accomplish this task using the built-in fs module. In this blog post, we will walk you through the process of obtaining an array of file names from a folder in Node.js. To begin, make sure you’ve imported the fs module: import fs from 'fs'; Next, you can use the readdirSync() function from the fs module to read the contents of a folder synchronously....

Axios is a highly popular JavaScript library that allows you to perform HTTP requests in both browser and Node.js platforms. It supports all modern browsers, including IE8 and higher. The library is promise-based, which means you can use async/await syntax to make XHR requests effortlessly. In this blog post, we will cover the basics of Axios and how to use it effectively. Installation To use Axios in a Node.js environment, you can simply install it via npm:...

Learn how to handle and store files uploaded via forms in Express. This is an example of an HTML form that allows users to upload files: <form method="POST" action="/submit-form" enctype="multipart/form-data"> <input type="file" name="document" /> <input type="submit" /> </form> Don’t forget to include enctype="multipart/form-data" in the form, otherwise files won’t be uploaded. When the user presses the submit button, the browser will send a POST request to the /submit-form URL on the same origin of the page....

In my previous tutorial on Netlify, I discussed how to use it to host websites, including this blog. Netlify is a great platform for running sites, especially those built with Hugo, as it enables us to have a 100% JAMstack (JavaScript, APIs, and Markup) implementation. What makes JAMstack even more exciting is its ability to handle dynamic functionality. And a major player in enabling dynamic capabilities in JAMstack sites is Netlify Lambda Functions....

What is a buffer? In the world of programming, a buffer refers to an area of memory that is used to hold data temporarily. While JavaScript developers may not be familiar with this concept, it is commonly used by developers working with system programming languages like C, C++, or Go. Buffers are essentially fixed-size chunks of memory that store binary data. In Node.js, buffers are implemented using the Buffer class, which allows JavaScript developers to interact with binary data....

Streams are a fundamental concept in Node.js that allow for efficient handling of data. They provide a way to handle reading and writing files, network communications, and any type of end-to-end information exchange. What are streams? Streams are not unique to Node.js and have been around for decades, with origins in the Unix operating system. In traditional data handling methods, when you read a file, the entire file is loaded into memory before it can be processed....

Axios is a convenient JavaScript library that allows you to perform HTTP requests in Node.js. In this blog, we will explore how to use Axios to make HTTP requests in your Node.js applications. Installation To start using Axios, you need to install it using npm or yarn. Open your terminal and run the following command: npm install axios If you prefer using yarn, run this command instead: yarn add axios Alternatively, you can include Axios directly in your HTML page by adding this script tag:...