Asp.net mvc 301 redirect

Question

I have one website with ssl certificate. The domain is http://example.com I have one sub domain http://api.example.com which has not ssl certificate.

So i want to redirect my http://example.com to https://example.com using web.config MVC.

When I am doing this, the subdomain is also redirect 301.

I want to redirect only my main domain.

My code is as below:

<rewrite>
      <rules>
        <rule name="Redirect-HTTP-HTTPS-IIS">
          <match url="(.*)" />
          <conditions>
            <add input="{HTTPS}" pattern="^OFF$" ignoreCase="true" />
          </conditions>
          <action type="Redirect" url="https://{HTTP_HOST}/{R:1}" redirectType="Permanent" />
        </rule>
      </rules>
    </rewrite>

Answer 1

Try this

<rule name="RedirectDomain" enabled="true" stopProcessing="true">
        <match url=".*" />
        <conditions logicalGrouping="MatchAny" trackAllCaptures="true">
            <add input="{HTTP_HOST}" pattern="^example.com$" />
        </conditions>
        <action type="Redirect" url="https://{HTTP_HOST}/{R:1}" redirectType="Permanent" />
    </rule>