public async Task <int> SaveProduct(Product product)
{
if (product == null)
{
throw new ArgumentNullException($"{nameof(product)} can not be null");
}
_productServiceDbContext.Add(product);
return(await _productServiceDbContext.SaveChangesAsync());
}
public void Add(Product product)
{
_context.Add(product);
_context.SaveChanges();
}