在一个Action中执行耗时长且不关心返回值的方法

LongTimeFuncInAction.cs

[HttpGet]
public async Task<IActionResult> LongTimeAction()
{
    var longtimeFunc = async () =>
    {
        await Task.Delay(1000 * 10);
        _logger.LogInformation("after delay");
    };
    _ = longtimeFunc.Invoke();
    return this.Ok();
}