/// <summary>
/// Gets the entity state (Etag) version of the backend specified by its
/// identifier.
/// </summary>
/// <param name='operations'>
/// The operations group for this extension method.
/// </param>
/// <param name='resourceGroupName'>
/// The name of the resource group.
/// </param>
/// <param name='serviceName'>
/// The name of the API Management service.
/// </param>
/// <param name='backendId'>
/// Identifier of the Backend entity. Must be unique in the current API
/// Management service instance.
/// </param>
/// <param name='cancellationToken'>
/// The cancellation token.
/// </param>
public static async Task <BackendGetEntityTagHeaders> GetEntityTagAsync(this IBackendOperations operations, string resourceGroupName, string serviceName, string backendId, CancellationToken cancellationToken = default(CancellationToken))
{
using (var _result = await operations.GetEntityTagWithHttpMessagesAsync(resourceGroupName, serviceName, backendId, null, cancellationToken).ConfigureAwait(false))
{
return(_result.Headers);
}
}
