public async Task <Resource> GetAsync(ResourceKey key, CancellationToken cancellationToken = default(CancellationToken))
{
EnsureArg.IsNotNull(key, nameof(key));
var currentDoc = await _dataStore.GetAsync(key, cancellationToken);
if (currentDoc == null)
{
if (string.IsNullOrEmpty(key.VersionId))
{
throw new ResourceNotFoundException(string.Format(Core.Resources.ResourceNotFoundById, key.ResourceType, key.Id));
}
else
{
throw new ResourceNotFoundException(string.Format(Core.Resources.ResourceNotFoundByIdAndVersion, key.ResourceType, key.Id, key.VersionId));
}
}
if (currentDoc.IsHistory &&
_conformanceProvider != null &&
await _conformanceProvider.Value.CanReadHistory(key.ResourceType, cancellationToken) == false)
{
throw new MethodNotAllowedException(string.Format(Core.Resources.ReadHistoryDisabled, key.ResourceType));
}
if (currentDoc.IsDeleted)
{
// As per FHIR Spec if the resource was marked as deleted on that version or the latest is marked as deleted then
// we need to return a resource gone message.
throw new ResourceGoneException(new ResourceKey(currentDoc.ResourceTypeName, currentDoc.ResourceId, currentDoc.Version));
}
return(ResourceDeserializer.Deserialize(currentDoc));
}
