如何集中和干燥一般的ModelState验证？

Question

这是我在很多地方看到的普通代码：

[HttpPost]
public IActionResult SomeMethod([FromBody] SomeModel model)
{
    if (ModelState.IsValid) 
    {
        // doing something with model
    }
    else 
    {
        // somehow notifying the user, or logging, or any other fail-strategy
    }
}

这很好，直到您发现在具有一千多个服务的多个项目中，您只是为单个公司范围内的无效模型状态策略重复了许多样板代码。

如何干燥呢？我要删除所有if (ModelState.IsValid)行：

[HttpPost]
public IActionResult SomeMethod([FromBody] SomeModel model) 
{
    // doing something with a valid model here, 
    // and knowing that some kind of middleware/action filter
    // has dealt with invalid models beforehand
}

然后在此操作之前的某个中央位置具有以下代码：

public void HandleInvalidModelStates()
{
    // check model state for the current action, 
    // and in case of being invalid, save a log to database asynchronously,
    // and returning appropriate messages to inform service consumers
    // about the problems. 
    // This strategy is exactly the same for over a thousand services.
}