psr/http-server-middleware 1.0.2

The PHP package psr/http-server-middleware provides a common interface for server-side HTTP middleware, according to PSR-15 (HTTP Server Request Handlers). This package itself is not a middleware implementation, but rather it describes what an HTTP server middleware should look like.

Utilizing the psr/http-server-middleware requires understanding of PSR-15 standards and PHP programming. As an interface, it may be used to define the structure for your middleware classes. While the package's readme doesn't provide a specific example, a general usage may look like this:

class YourMiddleware implements Psr\Http\Server\MiddlewareInterface
{
    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        // Your middleware logic here

        return $handler->handle($request);
    }
}

In the above code, YourMiddleware class is implementing the MiddlewareInterface, abiding by the rules defined by PSR-15. The process(...) function is where the logic of your middleware would reside.

Detailed documents and the description of the psr/http-server-middleware package can be found at the PSR official website here. Packagist also lists this package here and the related implementations here, where further reading and relevant information can be obtained.