Introduction There are many constant values that need to be stored in applications and retrieved for later use, like DB username, DB password, email password, and API Keys. These values may change in different circumstances. When a developer writes a piece of code, the code needs to be tested. The tests…

Introduction React.js does not support routing out of the box. React Router is one of the very popular library that is used with React.js to enable routing. Hook Router is a new library for enabling routing in react.js. It is built around react hooks. It is very simple and small. It…

React components can store a set of observable properties called states. React can decide how to render itself based on the state values. Sometimes it is important to share the state between multiple components by passing the state down through the component tree. When the component tree is too deep…

Summary In this post, I will try to explain React — Integration with third-party libraries. Introduction React.js open-source javascript library for building front-end applications. According to [StackOverflow 2020 survey], it is the second most popular web framework after JQuery and the most wanted web framework in the industry. There are many libraries…

In this post, I will show you how to integrate JWT authentication into Express.js applications using jsonwebtoken. Introduction We need to secure user’s data from being changed or displayed without permission. There are many types of authentications. We usually secure web APIs using JWT authentication. This method suits best for web…

Table of Contents Introduction What We Build Upload Images A Complete Example Conclusion Introduction Today, we can find many apps and websites that upload images like photo sharing apps or blog websites. That is why, there are many good reasons to allow users store files on server. Http servers handle file uploading using POST…

Summary In this post, I will show you how to build a blog web API in Node.JS. This tutorial uses Express.JS for handling HTTP requests and Mongodb for storing data. Table of Contents Introduction Setup Packages Database MVC Structure Express Application Complete Example Conclusion Introduction Node.JS is a platform used for building server side applications…

“Test-driven development (TDD) is a way of managing fear during programming” — Kent Beck Introduction TDD which stands for test driven development is a way of building software applications. This approach adds extra complexity to the process. Developer has to write extra code — test cases. TDD makes sure that the…