How to implement a multilingual site with an application on Angular?

Question

Angular

What is the best way to implement a multilingual site with an application on Angular?
The site has a form that receives results from the server with the lang parameter: ru/en/de and content that arrives from the WP Rest Api also with the lang parameter and static menus, etc.
Or build several sites and put them in subfolders /en, /de and in the root ru...

Answer 1

There is a translate library for this, here is one of them