Does One Time Webhook Registration For Application Applies to All the Users

[A.Shira]

Hi, I have a major doubt about the flow of the Fitbit Webhook:

1. I have registered my application and exposed the webhook.
2. I have verified the webhook endpoint.
3. Now if my application users connect to fitbit, I do not need them to individually subscribe to the webhook again right?

Speculation: On registering my application with the webhook, whenever the Fitbit cloud gets updated with the data, the application will receive the webhook for all the users with unique owner ID. 

Please let me know if this is the right assumption because I could not find much documentation on it.

[GordonFitbit]

Hi @A.Shira 

After you have verified your subscriber, you need to create a subscription for each user and each collection of data that you want the notification.  This is documented in the Developer Guide.  For example, user ABC123 consents to share nutrition and activity data with your application.  You should create the following subscriptions for user ABC123 so we know which notifications to send your application

• POST https://api.fitbit.com/1/user/ABC123/activities/apiSubscriptions/[subscription-id].json
• POST https://api.fitbit.com/1/user/ABC123/foods/apiSubscriptions/[subscription-id].json

Have you created the subscriptions yet?