Blazor에서 SEO 친화적인 문화별 URL 구축

public sealed class CultureRouteService
{
    private static readonly string[] SupportedCultures = ["en-us", "en-gb", "de-de"];

    public string ResolveCulture(string? routeCulture)
    {
        if (SupportedCultures.Contains(routeCulture, StringComparer.OrdinalIgnoreCase))
        {
            return routeCulture!.ToLowerInvariant();
        }

        return "en-us";
    }
}

[Route("culture")]
public sealed class CultureController : Controller
{
    [HttpGet("set")]
    public IActionResult Set(string culture, string returnUrl)
    {
        Response.Cookies.Append(
            CookieRequestCultureProvider.DefaultCookieName,
            CookieRequestCultureProvider.MakeCookieValue(new RequestCulture(culture)));

        return LocalRedirect(returnUrl);
    }
}

builder.Services.AddLocalization();
builder.Services.AddScoped<CultureRouteService>();

app.UseRequestLocalization(options =>
{
    options.SetDefaultCulture("en-us");
    options.AddSupportedCultures("en-us", "en-gb", "de-de");
    options.AddSupportedUICultures("en-us", "en-gb", "de-de");
});

app.MapControllers();

@page "/{Culture}/pricing/"

<a href="@BuildCultureLink(PageLinks.Blazor)">
    Blazor guides
</a>