##NUGET
PM> Install-Package CanducciReCaptchaMvc##How to?
In web.config add these 4 keys referring to Google Api (Captcha-Site-Key, Captcha-Secrety-Key, Captcha-Site-Verify-Url and Captcha-Api-Url).
Make your registration in https://www.google.com/recaptcha/intro/index.html site and add the settings the site key(Captcha-Site-Key) and secret key(Captcha-Secrety-Key).
<configuration>
<appSettings>
...
<add key="Captcha-Site-Key" value=""/>
<add key="Captcha-Secrety-Key" value=""/>
<add key="Captcha-Site-Verify-Url" value="https://www.google.com/recaptcha/api/siteverify"/>
<add key="Captcha-Api-Url" value="https://www.google.com/recaptcha/api.js"/>
</appSettings>Use namespace using Canducci.ReCAPTCHA;
###Controller
[HttpGet()]
public ActionResult Site()
{
return View();
}
[HttpPost()]
public ActionResult Site(ReCaptchaResponse ReCaptchaResponse)
{
if (ReCaptchaResponse.Success)
{
//validation passed
}
else
{
//validation errors
}
return View();
}###View
In html tag in the Head call the razor method Html.ReCaptchaScript
<head>
....
@Html.ReCaptchaScript(Render.Onload, ReCaptchaLanguage.Portuguese_Brazil)
</head>Body call the razor method Html.ReCaptcha()
<form method="post">
<div style="height:100px;">
@Html.ReCaptcha()
</div>
<button class="btn btn-primary">Send</button>
</form>