Integration with OneSignal

This sounds more like an integration of onesignal with Emerald rather then Emerald with onesignal. It is signal that make action based on Emerald data nтщеemerald make action based on signal data.

Or describe more what you wцфтеюmay be I've got you wrong.

Hello Sergey, Thank you for writing back.\n\n Im meaning for example being able to send notificacion thru one signal instead of email. Supouse you want to push a mssaive upgrade to a whole segment, achep memebership to a expensive one. Being able to select all cheap suscribers send notification thru push up One signal to let them know about a super deal to upgrade.

Does one signal extension have an API and ability to addd filters? May it would be good just add fileters to select users of different subscriptions?

Hello Sergey, Yes they do https://documentation.onesignal.com/docs/onesignal-api My idea about this is that email is kind of no longer working on real time the next comming and already here is push up notification in browsers and celphones, I have saw that you have emails notification on your app so a good deal would be use push up notifications for suscribers. The best of this is that onesignal is free. Thank you so much.

I see. I though one signal is Joomla extension. It is 3d party service. It is not only send notifications, it is also subscribe users to notifications is needed.

I am not sure I could do it. I mean it is doable, and if you find a freelancer I think they can do that integration, but I do not have time for a work like this.