How to create a multi-lingual STS using the IdSrv V2

[viveksinghps]

Hi,

I am trying to create a POC that has a main website (RP1) with landing page (Allowed anonymous access) . The website will have change language and Login button on the top menu. If user changes the language on landing page the same should be applied across on the Login pages (hosted in STS -IDSrv2).

What is the best way to pass the selected language context from RP to STS to display Login pages as per language selected on the landing page?

This could be a feature extension .

Regards Vivek singh