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Dispatching PSR-7 Middleware
PSR-7 defines interfaces for HTTP messages, and is now being adopted by many frameworks; Laminas itself offers a parallel microframework targeting PSR-7 with Mezzio. What if you want to dispatch PSR-7 middleware from laminas-mvc?
laminas-mvc currently uses laminas-http for its HTTP transport layer, and the objects it defines are not compatible with PSR-7, meaning the basic MVC layer does not and cannot make use of PSR-7 currently.
The package laminas-mvc-middleware is a laminas-mvc
application module that enables dispatching of middleware, middleware pipes, and
request handlers for route matches that contain a
Built-in Optional Support Deprecation
With version 2.7.0, laminas-mvc began offering the now deprecated
MiddlewareListener is always enabled, but
requires optional dependencies installed to be used.
A new laminas-mvc module, laminas-mvc-middleware, transparently replaces it with
Laminas\Mvc\Middleware\MiddlewareListener when registered with a
Starting with version 3.2.0, the built-in
trigger deprecation level errors on any attempt to handle a route match containing
If your application currently depends on the built-in optional middleware
laminas/laminas-mvc-middleware:~1.0.0 provides a drop-in replacement.
If you use this new module, please note that the module
must be enabled in your laminas-mvc application.