Task resource

When you make an asynchronous REST API operation, HTTP status 202 Accepted is returned and the URI of a TaskResource resource model is returned in the Location header of the response.

You can then perform a GET on the TaskResource model URI to poll for the status of the asynchronous operation. The TaskResource model also contains the name and URI of the resource that is affected by the task in the associatedResource attribute.

Creating an appliance backup example
Create an appliance backup. `POST /rest/backups` The URI of a `TaskResource` in the `Location` header is returned in the response. Poll for status of the backup using the `TaskResource` URI returned in step 1. `GET /rest/tasks/{id}` When the task reaches the `Completed` state, use the `associatedResource` URI in the `TaskResource` to download the backup file. `GET {associatedResource URI}`

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