What are laravel middlewares

Laravel middleware is divided into five types: global, routing, group, termination and custom. Global middleware applies to all requests, route middleware only applies to specific routes, group middleware applies to a set of routes, termination middleware executes after all other middleware and handlers execute, custom middleware is created by the developer and Extends the BaseMiddleware class.

Types of Laravel middleware

Laravel middleware is a type of HTTP request that is routed and processed before it reaches the application. code to be executed afterwards. It allows common tasks such as authentication, authorization, logging, and CSRF protection to be performed at the application level.

Laravel provides the following types of middleware:

1. Global middleware

These middlewares apply to all incoming requests, regardless of route . Global middleware can be registered in the app/Http/Kernel.php file.

2. Routing middleware

These middleware only apply to a specific route or a group of routes. Route-level middleware can be registered in the route definition through the middleware method.

3. Group Middleware

These middleware allow multiple middleware to be applied to a group of routes. Group-level middleware can be created using the middlewareGroup method in the routes/api.php or routes/web.php file.

4. Termination Middleware

These middlewares are executed after all other middlewares and route handlers are executed. This is useful for performing final tasks such as request end logging or error handling.

5. Custom middleware

Developers can also create their own custom middleware. This can be achieved by extending the Illuminate\Http\Middleware\BaseMiddleware class.

Using middleware in Laravel

Using middleware in Laravel is very simple, just follow the following steps:

1. Create a middleware Class (for custom middleware)
2. Register the middleware in the Kernel.php file (for global middleware)
3. Register the middleware in the route definition (for Route-level middleware)
4. Add middleware to group-level middleware (for group-level middleware)

By using middleware, developers can easily maintain the application's Security, performance and other aspects.

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