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Showing posts with the label Middleware

Understanding Laravel Application Lifecycle

Laravel Lifecycle explains how a Laravel application processes a user request from the moment it enters the framework until a response is returned. Understanding the Laravel lifecycle helps developers write better controllers, middleware, service providers, and optimize application performance. What is Laravel Application Lifecycle? The Laravel lifecycle is the complete flow of a request inside a Laravel application. It starts when the web server receives a request and ends when Laravel sends a response back to the browser. The major stages of Laravel lifecycle are: Request received by the server Application bootstrapping Service container initialization Service providers registration and booting Request routing Middleware execution Controller execution Response generation Step 1: Request Enters Laravel Application Every Laravel request starts from the public/index.php file. This is the entry point of every Laravel application. p...

How to Use Middleware in Node.js (Express)

How to Use Middleware in Node.js (Express) with Real-Time Example Middleware is one of the most powerful concepts in Express.js, allowing you to intercept and modify requests and responses. In this guide, we’ll explore middleware usage in Express — with a real-world use case: Authentication Middleware . 📌 What is Middleware? In Express.js, middleware is a function that sits between the request and response in the HTTP lifecycle. It has access to: req – the HTTP request object res – the HTTP response object next() – a function that passes control to the next middleware Think of middleware as the logic that can: Log request details Check if a user is authenticated Parse request bodies (JSON, form data, etc.) Serve static files Handle errors Middleware runs before the final route handler and can either: Terminate the request (by sending a response) Call next() to pass control to t...