设备注册后能否为Azure Notification Hub添加推送通知标签

Great question! I’ve worked with Azure Notification Hubs quite a bit, so let me break this down clearly for you:

You do NOT need to re-register devices every time you want to add new tags. You can absolutely update tags independently of the initial device registration process. Here’s how to go about it:

Key Ways to Update Tags Without Re-Registration #

1. Use Registration Management APIs (SDK or REST) #

Once a device is registered, it gets a unique registration ID tied to it. You can use this ID to directly modify the tags for that registration without repeating the full registration flow.

• With Official SDKs: Most Azure SDKs (like .NET, Java, Node.js) include methods to fetch an existing registration, tweak its tags, and save the changes. For example, in .NET:

  // Fetch the existing registration using its unique ID
  var registration = await hub.GetRegistrationAsync<GcmRegistration>("target-registration-id");
  
  // Add new tags (you can append to the existing set or replace it entirely)
  registration.Tags.Add("premium-user");
  registration.Tags.Add("beta-tester");
  
  // Push the updated registration back to the hub
  await hub.UpdateRegistrationAsync(registration);
  

• With REST API: If you’re working with a language without an official SDK, you can send a PUT request to the specific registration endpoint, including the updated tag set in the request body.

2. Batch Updates from Your Backend #

If you need to apply a new tag to multiple devices (e.g., all devices linked to a specific user), you can:

• Maintain a mapping in your backend between users and their associated registration IDs.
• When adding a new tag, loop through the relevant registration IDs and update each one’s tag collection using the methods above.

Important Things to Keep in Mind #

• Tag Behavior: Some update operations replace the entire tag collection, while others let you append new tags. Always check your SDK/API docs—if replacing, make sure to fetch the existing tags first, add your new ones, then save the complete set.
• Permissions: Ensure your backend has the right access to modify registrations. You’ll need a Shared Access Signature (SAS) token with Manage rights, or use Azure AD authentication for API access.

To wrap it up: You have full flexibility to add, remove, or modify tags at any time after the initial device registration—no need to re-register the device from scratch.

内容的提问来源于stack exchange，提问作者DomBurf