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MIDDLEWARE IN LARAVEL

Updated 1 month and 1 day ago

You can refer the code here :https://github.com/KtreeOpenSource/Laravel_Middleware

Here we are going to learn how to add a route middleware in laravel.

Middleware act as a firewall between requests and response

Often we need to check if request are meeting certain conditions in our application,if not we need to make them unauthorized.

Step 1:

Execute the artisan command  php artisan make:middleware CheckRequest

This creates a file at the path :app/Http/Middleware/CheckRequest.php.Add the following in the CheckRequest.php

Scenario:

Here let's check if the request is having a header parameter say ‘ip’  of which some values are already configured in the application.

 $myIps = ['10.0.3.59']; //the ips or domains we are allowing

If the parameter ip coming from the request header doesn't match with the existing values in the application we need to throw unauthorized error.

if(in_array($requestIp, $myIps))//checking if the requests are coming from the known ips or domain                      {
           return $next($request);
  }
<?php
namespace App\Http\Middleware;
use Closure;
class CheckRequest
{
   /**
    * Handle an incoming request.
    *
    * @param  \Illuminate\Http\Request  $request
    * @param  \Closure  $next
    * @return mixed
    */
   public function handle($request, Closure $next)
   {
       $myIps = ['10.0.3.59']; //the ips or domains we are allowing
      // info([$request->manager1,$request->manager2]);
       //info($request->header('ip'));
       $requestIp = $request->header('ip');
if(in_array($requestIp, $myIps))//checking if the requests are coming from the known ips or domain                      {
           return $next($request);
       }
       return response()->json(['status' => 401]);//throw unauthorized
      
   }
}

Step 2:

  • Create a route and a middleware

path:routes/web.php

Route::group(['prefix' => 'operations','middleware' => CheckRequest::class], function()
{
   Route::get('/test/{manager1}/{manager2?}', function ($manager1,$manager2 = null) {
       return $manager1.$manager2;
   });
});

 

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