Question

I want to rewirte my querystring for selected language.

I have this URL: http://www.example.com/?lang=en, and want it to be http://www.example.com/en

It should rewrite on all pages. So http://www.example.com/contact.aspx?lang=en would be http://www.example.com/en/contact.aspx

Is there a general rewrite rule for this?

Answer 1

This one works.

<rule name="Rewrite Language">
    <match url="([a-z]{2})(.*)" />
    <conditions logicalGrouping="MatchAll">
        <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
        <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
    </conditions>
    <action type="Rewrite" url="{R:2}?lang={R:1}" />
</rule>