Routing

Express middleware plays a crucial role in the routing process. By creating custom functions, we can insert them at different points in the chain to perform specific operations. Typically, middleware functions are used to modify the request or response objects or terminate the request before it reaches the route handler. These functions are added to the execution stack using the app.use() method, similar to defining a route. For example: app.use((req, res, next) => { /* middleware function */ }) In the above code snippet, we define a middleware function that takes three parameters: req (request object), res (response object), and next....

React Router is a powerful tool that allows you to connect the URL of your React app with its corresponding components. It is considered the go-to routing library for React and is widely used in many projects. Installation To install React Router using npm, run the following command: npm install react-router-dom Components The main components you will work with in React Router are: BrowserRouter: This component serves as the wrapper for all the Route components in your app....

If you’ve ever encountered a scenario where the useLocation and useHistory hooks from React Router returned undefined, you’re not alone. This can be a confusing issue that may leave you scratching your head. But fear not, there’s a simple explanation and solution. The first step is to understand how the useLocation and useHistory hooks work. These hooks allow you to access the current location and history objects provided by React Router....