#Below commands used to genearte SAS for 24  hours

$storageacntname = "<StorageAccountName"
 
$ResourceGroup = (Get-AzResource -Name $storageacntname).ResourceGroupName
 
$Key = Get-AzStorageAccountKey -ResourceGroupName $ResourceGroup -Name $storageacntname
 
$value = $Key[0].value
$context = New-AzStorageContext -StorageAccountName $storageacntname -StorageAccountKey $value
$StartTime = Get-Date
$EndTime = $startTime.AddHours(24.0)
$blobSAS = New-AzStorageAccountSASToken -Service Blob, File, Table, Queue -ResourceType Service, Container, Object -Permission "racwdlup" -Context $context -StartTime $StartTime -ExpiryTime $EndTime