static string GetBlobSasUri(CloudBlobContainer container)
{
//Get a reference to a blob within the container.
//CloudBlockBlob blob = container.GetBlockBlobReference("sasblobzwj.txt");
CloudAppendBlob blob = container.GetAppendBlobReference("sasblobzwj.txt");
//Upload text to the blob. If the blob does not yet exist, it will be created.
//If the blob does exist, its existing content will be overwritten.
//string blobContent = "This blob will be accessible to clients via a shared access signature (SAS).";
//blob.UploadText(blobContent);
//Set the expiry time and permissions for the blob.
//In this case, the start time is specified as a few minutes in the past, to mitigate clock skew.
//The shared access signature will be valid immediately.
SharedAccessBlobPolicy sasConstraints = new SharedAccessBlobPolicy();
sasConstraints.SharedAccessStartTime = DateTimeOffset.UtcNow.AddMinutes(-5);
sasConstraints.SharedAccessExpiryTime = DateTimeOffset.UtcNow.AddHours(24);
sasConstraints.Permissions = SharedAccessBlobPermissions.Read | SharedAccessBlobPermissions.Write;
//Generate the shared access signature on the blob, setting the constraints directly on the signature.
string sasBlobToken = blob.GetSharedAccessSignature(sasConstraints);
//Return the URI string for the container, including the SAS token.
return(blob.Uri + sasBlobToken);
}
