public static async Task <string> GetContainerSasTokenAsync(string storageAccountName, string containerName, string access_token)
{
TokenCredential tokenCredential = new Microsoft.Azure.Storage.Auth.TokenCredential(access_token);
StorageCredentials storageCredentials = new StorageCredentials(tokenCredential);
CloudBlobClient client = new CloudBlobClient(new Uri($"https://{storageAccountName}.blob.core.windows.net"), storageCredentials);
CloudBlobContainer container = client.GetContainerReference(containerName);
var delegationKey = await client.GetUserDelegationKeyAsync(DateTimeOffset.UtcNow.AddMinutes(-1), DateTimeOffset.UtcNow.AddMinutes(15));
var sas = container.GetUserDelegationSharedAccessSignature(delegationKey, new SharedAccessBlobPolicy()
{
SharedAccessStartTime = DateTime.UtcNow.AddHours(-1),
SharedAccessExpiryTime = DateTime.UtcNow.AddHours(16),
Permissions = SharedAccessBlobPermissions.Write | SharedAccessBlobPermissions.List
});
return(sas);
}