title: How to get ARN (Amazon Resource Name)?
body: <p>I am trying to use AWS Resource Tagging API (.Net) to add tags to AWS Resources. The problem I've is that Tagging API uses <code>ARNs</code> as identifiers for resources, however when I download resources, the only Id I've is an InstanceId. Is there a way, based on <code>InstanceId</code>, to get <code>ARN</code> or do I need to construct it manually ?</p>