This list contains links to concepts and code, that might be interesting for Joomla! 4. They need some more investigation about how they fit into Joomla.

HTTP Server / Client

• kemist80/http
  PSR-7 compliant http library

• mekras/psr7-client
  PSR7 compatible HTTP client library.

Middleware

Middleware seems to be a cool concept. In conjunction with PSR-7, the middleware approach will allow us to use a growing bunch of functionality. On the other hand, it will make Joomla! interesting as a library for other projects.

• On HTTP, Middleware, and PSR-7
  A blog post by Matthew Weier O’Phinney

• zendframework/zend-stratigility
  Stratigility is a port of Sencha Connect to PHP. It allows you to build applications out of middleware.

• muriloacs/Middleware
  Creates middleware layer on Zend Framework 2. Useful when it’s necessary to make some work between route and controller dispatch phases.

Streams

On first sight, streams seem to be complicated. In reality, they are easy to handle and extremely powerful.

• guzzle/psr7
  PSR-7 HTTP message library (currently missing ServerRequestInterface and UploadedFileInterface) Has a lot of interesting StreamInterface implementations

PSR7

• libraries.io/keywords/psr7
  Projects tagged with “psr7”