public async Task <ActionResult> UpdateGenre(int id, [FromBody] string genre)
{
var storedBook = await _context.GetBooksInInventory().SingleOrDefaultAsync(b => b.Id == id);
if (storedBook != null)
{
storedBook.Genre = genre; // you need to validate it.
await _context.SaveChangesAsync();
return(NoContent());
}
else
{
return(NotFound());
}
}
