How to Enable CORS in Laravel 5.1
Integrating CORS (Cross-Origin Resource Sharing) into Laravel allows servers to grant permission for cross-origin API calls. This article guides you through specific ways to enable CORS in Laravel version 5.1.
CORS Middleware for Laravel
// app/Http/Middleware/CORS.php
namespace App\Http\Middleware;
use Closure;
class CORS
{
/**
* Handle an incoming request.
*
* @param \Illuminate\Http\Request $request
* @param \Closure $next
* @return mixed
*/
public function handle($request, Closure $next)
{
header("Access-Control-Allow-Origin: *");
// ALLOW OPTIONS METHOD
$headers = [
'Access-Control-Allow-Methods' => 'POST, GET, OPTIONS, PUT, DELETE',
'Access-Control-Allow-Headers' => 'Content-Type, X-Auth-Token, Origin'
];
if($request->getMethod() == "OPTIONS") {
// The client-side application can set only headers allowed in Access-Control-Allow-Headers
return Response::make('OK', 200, $headers);
}
$response = $next($request);
foreach($headers as $key => $value)
$response->header($key, $value);
return $response;
}
}
Register the CORS Middleware
After creating the middleware, register it in the app/Http/Kernel.php file:
// app/Http/Kernel.php
protected $routeMiddleware = [
//other middlewares
'cors' => 'App\Http\Middleware\CORS',
];
Apply CORS in Routes
Finally, use the cors middleware in the routes where you want to allow cross-origin API calls:
Route::get('example', array('middleware' => 'cors', 'uses' => 'ExampleController@dummy'));
Note for Laravel ^8.0
In Laravel versions 8.0 and above, it's important to use the following syntax to register the CORS middleware due to namespace changes:
// app/Http/Kernel.php
protected $routeMiddleware = [
//other middlewares
'cors' => 'App\Http\Middleware\CORS',
];
// routes/web.php or routes/api.php
use App\Http\Controllers\ExampleController;
Route::get('example', [ExampleController::class, 'dummy'])->middleware('cors');The above is the detailed content of How to Enable CORS in Laravel 5.1?. For more information, please follow other related articles on the PHP Chinese website!
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