File upload in node.js seems tedious due to its async nature and network programming approach. However, it is one of the easiest file upload mechanisms I have seen yet. LIVE DEMO DOWNLOAD How to perform file upload? I am going to use express framework and middleware called “multer”. This middleware is designed for handling the multipart/form-data. In …
Session handling in any web application is very important and is a must-have feature, without it, we won’t be able to track users and it’s activity. In this article, I am going to teach you how to handle Session in Node.js. We will use express as a framework and various other modules such as body-parser …
Node.js and MySQL are some of the necessary binding needed for any web application. MySQL is one of the most popular open-source databases in the world and efficient as well. Almost every popular programming language like Java and PHP provides drivers to access and perform operations with MySQL. In this Node js and MySQL tutorial, …
Write code, test and deploy This is one of the common development cycles of any developer. Most of the time testing and deployment steps do not change frequently and in order to keep the developer focus on writing code, we do the automation of testing and deployment. This automation is called “continuous integration and deployment” …
Continuous Integration and deployment (CI/CD Pipeline) with Jenkins and Node.js Read More »
Google has announced a new service to prevent spam and attacks on your website. They name it “NO CAPTCHA reCAPTCHA” . Google reCAPTCHA is designed to protect your website from spam and abuse. In this tutorial, I am going to show you how to integrate it into your website. For demo purposes, I made one simple …
Google reCAPTCHA V2 tutorial with Example Demo in PHP Read More »
Real-time web/mobile application is becoming popular day by day. Services like Firebase and Pusher provides API’s and Services to develop effective real-time notification system for your mobile and web apps. We are not going to use these Services in this post; instead, we will develop an application that pops up a notification on a particular …
HTML5 Push Notification System Using Nodejs MySQL Socket.io Read More »
This tutorial is about Connecting Java to MySQL database using JDBC driver. You may find many tutorials on this topic but most of them show you the code and links to download a driver and install it which is what I am also gonna do but in an easy, straightforward way. You need a MySQL …
S.O.L.I.D Stands for first five object-oriented design principle by Robert C.Martin. SOLID principles can be used to design and develop extensible and easy-to-maintain software. By using these principles in object-oriented programming developers can create and maintain the codebase very easily. SOLID stands for: Single-responsibility principle Open-closed principle Liskov substitution principle Interface segregation principle Dependency Inversion …
S.O.L.I.D the First 5 Principles of Object Oriented Design with JavaScript Read More »
Bubble sort is the simplest sorting algorithm in computer science. Bubble sort performs the sorting process by swapping adjacent elements if they’re not in the desired (ascending or descending) order. This process repeats from the beginning of the list of elements until all elements are in order. In order to understand the sorting process, let’s …
In this tutorial, we are going to learn how to read and write JSON to a file in Python using the built-in Python module. We will store our data in the dict object and store it in the file as a serialized JSON string. Let’s do it. Writing JSON in the file Python provides a …