How to: Middlewares
*Libraries for building application using middlewares.*

* [PSR-15 Middlewares](https://github.com/middlewares/psr15-middlewares) - Inspiring collection of handy middlewares.
* [Relay](https://github.com/relayphp/Relay.Relay) - A PHP 5.5 PSR-7 middleware dispatcher.
* [Stack](https://github.com/stackphp) - A library of stackable middleware for Symfony.
* [Laminas Stratigility](https://github.com/laminas/laminas-stratigility) - Middleware for PHP built on top of PSR-7.