Getting notifications of newly stored bags

When the storage service successfully stores a bag, it sends a notification to an SNS topic. You can subscribe to this topic to react to updates, e.g. if you want to trigger some downstream processing.

This will be a topic whose name ends registered_bag_notifications.

This topic will receive JSON messages that look similar to the following:

{
  "space": "digitised",
  "externalIdentifier": "b20278512",
  "version": "v1",
  "type": "RegisteredBagNotification"
}

Any bag described in this topic should be retrievable through the bags API.