Feature Request: Support multiple notification distributors

Just building on this question: https://github.com/aspnetboilerplate/aspnetboilerplate/issues/2743

It would be nice if a developer could implement and register multiple implementations of INotificationDistributer so that one could support SMS, email, and real-time notifications. It could be designed such that each subscription could define which “channels” the user would like to receive notifications on, i.e. if a user wanted to get friend request notifications with SMS, he/she could subscribe to the FriendRequest notification on the SMS channel.

[willseward]

I tried a lot to format my code but couldn’t do it. Sorry for crappy formatting.

Use three ` characters to start the code.

[saurabhpati]

@danijel-peric @willseward , I really like the collection of IRealTimeNotifiers idea. I created channels basically as markers to persist the channel information into the AbpTenantNotifications Table to persist notifications with their respective channel. So, I used the Table per Hierarchy in EF Core to implement the same. One improvement that I could have done agreeing to you is that I could have used channels in this way.

_iocManager.IocContainer.ResolveAll<NotificationChannelBase>();

Advantages:

• Removes the Channel-Notifier coupling that I had above.
• Much better standardized DI resolution way than Reflection.

Thank you guyz for your suggestion.