Dataseeder.cs

    public class DataSeeder
    {
        private readonly EmployeeDbContext employeeDbContext;

        public DataSeeder(EmployeeDbContext employeeDbContext)
        {
            this.employeeDbContext = employeeDbContext;
        }

        public void Seed()
        {
            if(!employeeDbContext.Employee.Any())
            {
                var employees = new List<Employee>()
                {
                        new Employee()
                        {
                            Name = "Karthik",
                            Citizenship = "India",
                            EmployeeId = "1"
                        },
                        new Employee()
                        {
                            Name = "Jacob",
                            Citizenship = "US",
                            EmployeeId = "2"
                        }
                };

                employeeDbContext.Employee.AddRange(employees);
                employeeDbContext.SaveChanges();
            }
        }
    }