How to get custom claims in asp.net core?

Question

var claims = new List<Claim>

{

new Claim(ClaimTypes.Name, user.UserNm),

new Claim(ClaimTypes.Role, user.UserRole),

new Claim(ClaimTypes.NameIdentifier, user.LoginId),

new Claim("Email", user.EmailId)

};

 

--I have created above claims, in that I have a custom claim which is Email Id I want to fetch that data inside my user object how can I achieve it and also Role.

 

User user = new User();

System.Security.Claims.ClaimsPrincipal currentUser = this.User;

user.UserNm = User.Identity.Name;

user.UserRole=?

 

Big thanks in advance if anyone can help me.