Hi,

as discussed on the previous thread, there will be a new endpoint to 'track' the "App opened/launched due to received push notification".

Internally, on the UPS, the Push Message has an ID, which get's append to the payload of the notification, like here:

https://github.com/matzew/aerogear-unifiedpush-server/blob/analytics/push/sender/src/main/java/org/jboss/aerogear/unifiedpush/message/sender/APNsPushNotificationSender.java#L107-L108

On the client SDKs this will be read and a HTTP call made to the soon introduced MetricsEndpoint. Currently this info is send to the RegistrationEndpoint, including the deviceToken/registrationId. However, I think that the deviceToken/registrationId is currently not needed for metrics, since we are just interested in anonymous "app launched/opened due to push", and not a specific "DEVICE X did open, while DEVICE Y did not yet open".

So all we really need is the ID of the push notification, to be processed by our Metrics Service

https://github.com/matzew/aerogear-unifiedpush-server/blob/analytics/jaxrs/src/main/java/org/jboss/aerogear/unifiedpush/rest/registry/installations/InstallationRegistrationEndpoint.java#L128-L133

Therefore my proposal is have an endpoint:

PUT /metrics/pushmessage/{pushMessageID}

I think PUT is good/best, because there is nothing really created on the server, it's more updating the 'counter' on the existing PushMessageInformation object.

Thoughts?

-Matthias