Route localization in ASP.NET Core 2

Question

I am developing an online store using ASP.NET Core 2 and I am struggling with how to implement route localization, ex. depending from the country where user is from I want him to see /en/products or /pl/produkty.

I managed to implement culture as part of the url, like /en/...., and user can also change default language by clicking a button on the website. However, I have no idea how to localize whole urls. I don't want to put hundreds of urls in Startup.cs (MapRoute). I need a better solution, which is working automatically behind the scenes.

If someone change directly the url (ex. en/products) and put pl instead of en, I want him/her to be redirected to pl/produkty automatically.

I hope you can help me!

Answer 1

here's a very good ressource here: Asp.Net core Localization deep dive

Precisely here's what you're looking for:

 IList<CultureInfo> supportedCultures = new List<CultureInfo>
{
    new CultureInfo("en-US"),
    new CultureInfo("fi-FI"),
};
var localizationOptions = new RequestLocalizationOptions
{
    DefaultRequestCulture = new RequestCulture("en-US"),
    SupportedCultures = supportedCultures,
    SupportedUICultures = supportedCultures
};
var requestProvider = new RouteDataRequestCultureProvider();
localizationOptions.RequestCultureProviders.Insert(0, requestProvider);

app.UseRouter(routes =>
{
    routes.MapMiddlewareRoute("{culture=en-US}/{*mvcRoute}", subApp =>
    {
        subApp.UseRequestLocalization(localizationOptions);

        subApp.UseMvc(mvcRoutes =>
        {
            mvcRoutes.MapRoute(
                name: "default",
                template: "{culture=en-US}/{controller=Home}/{action=Index}/{id?}");
        });
    });
});