public string GetScopeByRoles(string[] roles)
        {
            var scopes = new HashSet <string>();

            foreach (var scope in DefaultScopes)
            {
                scopes.Add(scope);
            }

            return(ScopeFormatHelper.JoinScopes(scopes.ToArray()));
        }
        public string GetScopeByRoles(string[] roles)
        {
            var scopes = new HashSet <string>();

            foreach (var role in roles)
            {
                if (ScopesByRoleName.ContainsKey(role))
                {
                    foreach (var scope in ScopesByRoleName[role])
                    {
                        scopes.Add(scope);
                    }
                }
            }
            foreach (var scope in DefaultScopes)
            {
                scopes.Add(scope);
            }

            return(ScopeFormatHelper.JoinScopes(scopes.ToArray()));
        }