PSR7 middleware for handling push notifications. Detects push notifications and triggers a push notification event.

The middleware checks to see if it recognizes the incoming HTTP request as a push notification. If the request is recognized an appropriate event is dispatched. If the request is not recognized the next middleware is called.

By default when a push notification request is handled the middleware chain is terminated. That is, even if the request is pointed to a valid route like /do/something/route or even /, that route functionality will not be executed.

request -> push notification middleware
    if request is recognized push notification 
        -> dispatch notification event 
        -> return 200 response
    else 
        -> return $next_middleware(request, response)

Ideally, you will add notification event subscribers to the event dispatcher you factory the middleware with. These listeners will do interesting things when a push notification arrives.

The default

The library provides support for some common services that provide push notifications.

http://docs.aws.amazon.com/sns/latest/dg/SendMessageToHttp.html

https://developer.github.com/webhooks/#events

https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/web_hooks/web_hooks.md

https://api.slack.com/outgoing-webhooks

https://wiki.jenkins-ci.org/display/JENKINS/Notification+Plugin

Write a matcher that implements MatcherInterface and you can support any notification.