public async Task <ConcurrentObject> TryUpdateRepresentationAsync(string representationId, string etag)
{
if (string.IsNullOrWhiteSpace(representationId))
{
throw new ArgumentNullException(nameof(representationId));
}
if (string.IsNullOrWhiteSpace(etag))
{
throw new ArgumentNullException(nameof(etag));
}
var concurrentObject = new ConcurrentObject
{
Etag = "\"" + etag + "\"",
DateTime = DateTime.UtcNow
};
await _storage.SetAsync(representationId, concurrentObject).ConfigureAwait(false);
return(concurrentObject);
}
private void SetHeaders(Controller controller, ConcurrentObject concurrentObject)
{
controller.SetEtag(concurrentObject.Etag);
controller.SetLastModifiedDate(concurrentObject.DateTime.ToUniversalTime().ToString("R"));
}
