webhook-subscription-2021-flow.seqdiag

Title: Notification Flow in Solid (WebHook)
Subscribing Server -> Solid Metadata Resource: 1. Discovery
Solid Metadata Resource -> Subscribing Server: 2. Receive (cache) server metadata resouce
Subscribing Server -> Notification Sever: 3. Request a new WebHook subscription (with access token)
Notification Sever -> Authorization Server: 4. Verify Authorization
Authorization Server -> Notification Sever: 5. Receive capabilities
Notification Sever -> Subscribing Server: 6. Receive subscription URL and metadata
Note over Notification Sever: 7. Action happens on Notification Sever
Notification Sever -> Subscribing Server: 8. Webhook Request (With signed token)
Note over Subscribing Server: 9. Validate Webhook Token
Subscribing Server -> Unsubscribe Endpoint: 10. Unsubscribe from the WebHook