demaderios

public static List<string> RegularExpressionExtractor(string input, string regexpattern)
        {
            var regexPatternToMatch = new Regex(regexpattern);
            var listOfResults = regexPatternToMatch.Matches(input)
                .Cast<Match>()
                .Select(m => m.Value)
                .ToList();

            return listOfResults;
        }

demaderios

public static void ConfigureAuthorization(this IServiceCollection services)
{
  services.AddAuthorization(options =>
  {
    options.AddPolicy("CanAccessSuperTopSecretArea", policy =>
      {
        context => context.User.HasClaim(claim => claim.Type == "TopSecretUser" || claim.Type == "OtherTopSecretUser" ||
        context.User.IsInRole("SupremeOverlord"))
      }
  }