public async Task <ActionResult <BorrowedBookModels> > PostBorrowedBook([FromBody] BorrowedBookModels borrowedBook)
        {
            _context.BorrowedBooks.Add(borrowedBook);
            await _context.SaveChangesAsync();

            return(CreatedAtAction(nameof(GetBorrowedBook), new { id = borrowedBook.Id }, borrowedBook));
        }
        public async Task <IActionResult> PutBorrowedBook(long id, BorrowedBookModels borrowedBook)
        {
            if (id != borrowedBook.Id)
            {
                return(BadRequest());
            }

            _context.Entry(borrowedBook).State = EntityState.Modified;
            await _context.SaveChangesAsync();

            return(NoContent());
        }