Middlewares

Anonymous Callbacks

<?php

// Include autoload
require('./vendor/autoload.php');

use \Calf\HTTP\Router as Router;
use \Calf\HTTP\Route as Route;
use \Calf\HTTP\RouteGroup as RouteGroup;
use \Calf\HTTP\Request as Request;
use \Calf\HTTP\Response as Response;

// Create a new instance of Calf Router
$router = new Router();

// Then create a new Route
$home = new Route('/', function(Request $req, Response $res, array $args) {
    return $res->set('Hello World');
});

// For some reason, you might need to use middlewares...
$home->addMiddleware(function(Request $req, Response $res, callable $next) {
    // Before route is called,
    // Some codes might go here...

    // Call the next middleware
    $next($req, $res);

    // After route is executed.
    $res->set($res->get() . '!');

    return $res;
});

// Finally after creating a route you'll be
// needing to register it on our router
$router->add($home);

// Then let the Router do its work.
$response = $router->dispatch();
// Render response
$response->render();

Hello World!

Class

Implementing a class as Middleware requires __invoke function to be declared and it's suggested to implement \Calf\HTTP\Interfaces\Middleware

<?php

class TestMiddleware implements \Calf\HTTP\Interfaces\Middleware
{
    function __invoke(Request $req, Response $res, callable $next) {
        $next($req, $res);
        $res->set($res->get() . '!');
    
        return $res;
    }
}

<?php

// Include autoload
require('./vendor/autoload.php');

use \Calf\HTTP\Router as Router;
use \Calf\HTTP\Route as Route;
use \Calf\HTTP\RouteGroup as RouteGroup;
use \Calf\HTTP\Request as Request;
use \Calf\HTTP\Response as Response;

// Create a new instance of Calf Router
$router = new Router();

// Then create a new Route
$home = new Route('/', function(Request $req, Response $res, array $args) {
    return $res->set('Hello World');
});

// For some reason, you might need to use middlewares...
$home->addMiddleware(new TestMiddleware());

// Finally after creating a route you'll be
// needing to register it on our router
$router->add($home);

// Then let the Router do its work.
$response = $router->dispatch();
// Render response
$response->render();

Hello World!