检查Web API是否可用的好/正确方法是什么? [英] what's a good/proper way to check whether a Web API is available?

问题描述

我有一个从API获取数据的应用程序:

I have an application which gets data from an API:

string jDoc = webclient.DownloadString(url);

但是，在进行此调用之前，我需要确保API可用.

Before I make this call, however, I need to make sure the API is available.

我该怎么做?

我应该只使用 TRY/CATCH 块还是有更好的方法?

Should I just use a TRY/CATCH block or is there a better way of doing this?

推荐答案

Web API与其他任何网页一样，因此归结为如何查看网页是否响应?"

A Web API is like any other web page, so this comes down to "How do I see if a webpage is responding?"

根据文档，可以，只需使用尝试/捕获.如果存在 WebException ，并且您确定地址有效，那么进行查询时就会出现问题.您可以检查WebException的 Response 和 Status 属性以了解更多信息.

As per the documentation, sure, just use try/catch. If there's a WebException, and you're sure the address is valid, then there was some issue in making your query. You can check the Response and Status properties of the WebException to learn more.

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