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Question

I am trying to send a broadcast push notification to all registered devices.

I see that there are the following 2 methods in the NotificationHubClient :

• public Task<NotificationOutcome> SendNotificationAsync(Notification notification, string tagExpression);

• public Task<NotificationOutcome> SendNotificationAsync(Notification notification, IEnumerable<string> tags);

In the latter, it states that the tags parameter needs to be non-empty and will through an exception if it is empty.

In the former, it accepts a single tag or tag expression.

They mention in the documentation multiple times that you can send broadcast messages to all devices but I cant find an example of this.

Answer 1

There are the following 3 methods in the NotificationHubClient.

You need just this code for broadcasting.

public Task<NotificationOutcome> SendNotificationAsync(Notification notification);

You don't need string tagExpression or IEnumerable<string> tags