Identityserver3 get and change localization in runtime - asp.net

Question

I used IdentityServer3.Contrib.Localization to provide translation to the identityserver.
IdentityServer3.Contrib.Localization provides only localization for scopes, messages, events but still there are missing texts to translate in login page and etc.
I think you should provide a custom views for every language using IViewService but i don't know if this is the correct path.
For example in order to provide a localization for a specific language i register this in startup class configuration:
// Register the localization service
idServerServiceFactory.Register(
new Registration<ILocalizationService>(r => new GlobalizedLocalizationService(
new LocaleOptions { Locale = "de-DE" })));
but now i want to change the language based on the language that user input or based on the browser accept-language, how can i change the localization for (scopes, events, messages, views) in run time.
some one mention that i can use OwinEnvironementService and inject it to the localization service to get the language but is there any example?
Also i think that i can provide an owin middleware in order to provide the needed change in localization based on the language but any suggestions?

Answer 1

The IdentityServer3.Localization(nuget.org) package can now do this:
var opts = new LocaleOptions
{
LocaleProvider = env =>
{
var owinContext = new OwinContext(env);
var owinRequest = owinContext.Request;
var headers = owinRequest.Headers;
var accept_language_header = headers["accept-language"].ToString();
var languages = accept_language_header
.Split(',')
.Select(StringWithQualityHeaderValue.Parse)
.OrderByDescending(s => s.Quality.GetValueOrDefault(1));
var locale = languages.First().Value;
return locale;
}
};
var factory = new IdentityServerServiceFactory();
factory.Register(new Registration<LocaleOptions>(opts));
factory.LocalizationService = new Registration<ILocalizationService, GlobalizedLocalizationService>();
=> Link to sample here.