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This article introduces the relevant knowledge of "laravel middleware has such a role". In the operation process of actual cases, many people will encounter such difficulties. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

In laravel, the role of middleware is to filter HTTP requests and perform different logical operations according to different requests; middleware can intercept and verify the requested data, and determine whether to allow the next middleware after logical processing.

Operating environment: Windows 10 system, Laravel version 6, Dell G3 computer.

What is Laravel's middleware for?

Middleware, as its name implies, intercepts request data, verifies data, and judges whether to allow entry into the next middleware after logical processing between request and response; middleware is divided into prefix middleware and post-middleware; it can be used for authorization authentication, logging, etc.

Simply put, the role of middleware in laravel is to filter HTTP requests and perform different logical operations according to different requests.

We can implement the following functions through middleware:

Specify certain routes

Set HTTP response headers

recording request

Parameters for filtering requests

Decide whether to enable site maintenance mode

Do the necessary actions before and after responding

custom middleware

Command line Execution of the following simple command, you can easily create a new middleware

php artisan make:middleware //MiddlewareName is the name of the middleware you want to create

By executing the above command, Laravel will automatically create a middleware that contains only handle methods in the app/Http/Middleware directory.

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