public async Task <IActionResult> PutDepartment([FromRoute] int id, [FromBody] Department department)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            if (id != department.Id)
            {
                return(BadRequest());
            }

            _context.Entry(department).State = EntityState.Modified;

            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!DepartmentExists(id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(NoContent());
        }
        public async Task <ActionResult <Department> > Post(Department department)
        {
            if (department == null)
            {
                return(BadRequest());
            }

            db.Departments.Add(department);
            await db.SaveChangesAsync();

            return(Ok(department));
        }