TaskExtensions.cs

public static class TaskExtensions
{
    /// <summary>
    /// Use to run async tasks in sync context. Configures await (by default set to false to not continue) and unwraps exception and result.
    /// </summary>
    public static TResult UnwrapResult<TResult>(this Task<TResult> task, bool continueOnCapturedContext = false)
    {
        try
        {
            task.ConfigureAwait(continueOnCapturedContext);
            var result = task.Result;
            return result;
        }
        catch (AggregateException ex)
        {
            ExceptionDispatchInfo.Capture(ex.InnerException).Throw();
            return task.Result; // this never gets executed
        }
    }

    /// <summary>
    /// Use to run async tasks in sync context. Configures await (by default set to false to not continue) and unwraps exception.
    /// </summary>
    public static void UnwrapResult(this Task task, bool continueOnCapturedContext = false)
    {
        try
        {
            task.ConfigureAwait(continueOnCapturedContext);
        }
        catch (AggregateException ex)
        {
            ExceptionDispatchInfo.Capture(ex.InnerException).Throw();
        }
    }
}