index.php

<?php
require_once __DIR__ . '/vendor/autoload.php';

$dispatcher = FastRoute\simpleDispatcher(function (FastRoute\RouteCollector $r) {
    $r->addRoute('POST', '/rabbit/sendEmail', 'App\Http\Controllers\EmailsController@sendRabbitMQEmailAction');
    $r->addRoute('POST', '/sendEmail', 'App\Http\Controllers\EmailsController@sendEmailAction');
});

// Fetch method and URI from somewhere
$httpMethod = $_SERVER['REQUEST_METHOD'];
$uri = $_SERVER['REQUEST_URI'];

// Strip query string (?foo=bar) and decode URI
if (false !== $pos = strpos($uri, '?')) {
    $uri = substr($uri, 0, $pos);
}
$uri = rawurldecode($uri);

$routeInfo = $dispatcher->dispatch($httpMethod, $uri);
switch ($routeInfo[0]) {
    case FastRoute\Dispatcher::NOT_FOUND:
        http_response_code(404);
        break;
    case FastRoute\Dispatcher::METHOD_NOT_ALLOWED:
        $allowedMethods = $routeInfo[1];
        http_response_code(405);
        break;
    case FastRoute\Dispatcher::FOUND:
        $handler = $routeInfo[1];
        $vars = $routeInfo[2];
        list($class, $method) = explode("@", $handler, 2);
        return call_user_func_array(array(new $class, $method), $vars);
        break;
}