README

PHP中中间件模式的通用实现

安装

composer require ericabouaf/middl

用法

中间件配置

要配置中间件，您需要创建一个继承自AbstractFlow并实现configureMiddlewares方法的类。

use YourNamespace\AbstractFlow;
use YourNamespace\Middleware\DummyMiddleware;

class SampleFlow extends AbstractFlow
{
    protected function configureMiddlewares(): array
    {
        return [
            new DummyMiddleware('example'),
            // Add other middlewares here
        ];
    }
}

创建中间件

根据需要，您可以扩展AbstractMiddleware或BeforeAfterMiddleware来创建中间件。

使用AbstractMiddleware的示例

use YourNamespace\AbstractMiddleware;
use YourNamespace\Request;
use YourNamespace\Response;

class SampleCustomMiddleware extends AbstractMiddleware
{
    public function __invoke(Request $request, callable $next): Response
    {
        // Middleware logic before calling the next middleware
        $response = $next($request);
        // Middleware logic after calling the next middleware
        return $response;
    }
}

使用BeforeAfterMiddleware的示例

use YourNamespace\Middleware\BeforeAfterMiddleware;
use YourNamespace\Request;
use YourNamespace\Response;

class SampleBeforeAfterMiddleware extends BeforeAfterMiddleware
{
    public function before(Request $request): void
    {
        // Logic before calling the next middleware
    }

    public function after(Request $request, Response $response): Response
    {
        // Logic after calling the next middleware
        return $response;
    }
}

在没有流的情况下执行中间件

要执行中间件，请使用MiddlewareRunner类的run方法。

use YourNamespace\MiddlewareRunner;
use YourNamespace\Request;
use YourNamespace\Response;
use Psr\Log\NullLogger;

$request = new Request(['param1' => 'value1']);
$middlewares = [
    new SampleCustomMiddleware(),
    new SampleBeforeAfterMiddleware(),
    // Add other middlewares here
];

$response = MiddlewareRunner::run($middlewares, $request, new NullLogger());