Doubt on redirection

It sounds like you can use a regular expression:

https://redirection.me/support/redirect-regular-expressions/

Hi @johnny5!

Thank you by your return!

I have a difficult with this, tried several times but with no success…

Last tried:

server {
    ...
    if ($arg_lang = "en") {
        return 301 $scheme://$host/en$request_uri;
    }
    if ($arg_lang = "es") {
        return 301 $scheme://$host/es$request_uri;
    }

    location / {
        if ($args ~* "lang=en") {
            rewrite ^/(.*)/$ /en/$1? permanent;
        }
    }

    location / {
        if ($args ~* "lang=es") {
            rewrite ^/(.*)/$ /es/$1? permanent;
        }
    }

    ...
}

Could you help me?

Thanks and Regards,

Tony

I can only help with Redirection itself and the details are on the support page I referenced.

ok thanks!