Passing parameters to middleware in Laravel

Question

Let's say I have a route pointing to middleware;

Route::get("/user/{id}", ['middleware' => 'auth', function ($id) {

}]);

And my middleware code is as follows:

public function handle($request, Closure $next)
{
    return $next($request);
}

If I want to use $id in the middleware, how do I do that?

Solution 1

You can use one of the following method to access the route parameter in a middleware:

First Method

$request->route()->parameters();

This method will return an array of all the parameters.

Second Method

$request->route('parameter_name');

Here parameter_name refers to what you called the parameter in the route.

Solution 2

In you case you cannot pass $id into the middleware.

Generally you can pass parameters to middleware via using : symbol like this:

Route::get('user/{id}', ['middleware' => 'auth:owner', function ($id) {
    // Your logic here...
}]);

And get the passed parameter into middleware method like this:

<?php

namespace App\Http\Middleware;

use Closure;

class Authentication
{
    public function handle($request, Closure $next, $role)
    {
        if (auth()->check() && auth()->user()->hasRole($role)) {
            return $next($request);
        }

        return redirect('login');
    }
}

Note that the handle() method, which usually only takes a $request and a $next closure, has a third parameter, which is our middleware parameter.

If you passed in multiple parameters like auth:owner,subscription to your middleware call in the route definition, just add more parameters to your handle method which will look like this - handle($request, Closure $next, $role,$subscription)