How can I enable backup on azurerm_app_service

Terraform Providers Azure
1

Hi all,
I am trying to enable backup in a webapp(azurerm_app_service)
how can I generate storage_account_url ?
this is my error:

Error: Error updating Backup Settings for App Service “isc-prod-euw-iscwiki-svc” (Resource Group “isc-prod-euw-wiki-rg”): web.AppsClient#UpdateBackupConfiguration: Failure responding to request: StatusCode=400 – Original Error: autorest/azure: Service returned an error. Status=400 Code=“BadRequest” Message=“The provided URI is not a SAS URL for a container (it needs to be https and it has to have 2 segments).” Details=[{“Message”:“The provided URI is not a SAS URL for a container (it needs to be https and it has to have 2 segments).”},{“Code”:“BadRequest”},{“ErrorEntity”:{“Code”:“BadRequest”,“ExtendedCode”:“04205”,“Message”:“The provided URI is not a SAS URL for a container (it needs to be https and it has to have 2 segments).”,“MessageTemplate”:“The provided URI is not a SAS URL for a container (it needs to be https and it has to have 2 segments).”,“Parameters”:}}]

2

The test configurations are a good source of examples - e.g. terraform-provider-azurerm/app_service_resource_test.go at beec85b5e7b0bdf675f090235b67c66191e058a0 · terraform-providers/terraform-provider-azurerm · GitHub