How to properly pass password and login in header using Retrofit?

Question

Java

@Headers({"Authorization: Basic base64encode(<username>:<password>",
            "Content-Type: application/json",
            "Accept: application/json"})
    @POST("authorizations")
    Call<Auth> getUserRepos();

401 Unauthorized
{
"message": "Requires authentication",
"documentation_url": " https://developer.github.com/v3 "
}
Through RESTED it works where Basic Auth is, and through Retrofit apparently incorrect login and password transfer

Answer 1

Well, in the 401 response there is a direct link where you can read what is done wrong! But no...