Web API 2中的Google reCaptcha c# [英] Google reCaptcha in Web API 2 c#

问题描述

我有一个ASP.NET Web API 2项目.我正在尝试从表单中读取Google验证码.我尝试了以下代码:

I have an ASP.NET Web API 2 Project. I am trying to read Google Captcha from the form. I tried this Code:

    public string Post(FoundingRequest model)
    {
        var response = Request["g-recaptcha-response"];
        string secretKey = "my key";
        var client = new WebClient();
        var result = client.DownloadString(
        $"https://www.google.com/recaptcha/api/siteverify?secret={secretKey}&response={response}");
        var obj = JObject.Parse(result);
        model.Captcha = (bool)obj.SelectToken("success");
        ....
    }

但是我在第一行收到一个错误:

but I am receiving an Error on the first line:

无法将带有[]的索引应用于类型的表达式'HttpRequestMessage'

Cannot apply indexing with [] to an expression of type 'HttpRequestMessage'

为什么?以及如何解决?谢谢

why? and how to solve it? thank you

推荐答案

我找到了答案，我创建了一个具有特定名称的隐藏文件，并在验证码回调中更新了它的值.代码:

I found the answer, I created a hidden file with a certain name and update its value on Captcha call back. Code:

   <input type="hidden" value="" id="recaptcha" name="recaptcha" />
   <div class="g-recaptcha" data-callback="imNotARobot" data-sitekey="key"></div>

而Javascript是:

and the Javascript is:

<script type="text/javascript">
    var imNotARobot = function () {
       $("#recaptcha").val(grecaptcha.getResponse());
    };
</script>

服务器端:

public string Recaptcha { get; set; }

，活页夹将完成所有工作.

and the binder does all the work.

这篇关于Web API 2中的Google reCaptcha c#的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！