ProductRepository.cs

public class ProductRepository : IProductRepository 
{
    public ProductRepository(DbContext dbContenxt) {
        _table = dbContext.Set<Product>();
        _dbContext = dbContext;
    }
    
    public bool Create(Product product) {
        _table.Add(product);
        return Save();
    }
    
    public bool Delete(int productId) {
        var product = _table.SingleOrDefault(x => x.Id == productId);
        _table.Delete(product);
        return Save();
    }
    
    public IEnumerable<Product> GetAll()
    {
        return _table.ToList();
    }
    
    public void DeleteAll() 
    {
        _table.RemoveRange(_table);
        Save();
    }
    
    private bool Save() {
        try {
            _dbContext.SaveChanges();
        }
        catch {
            return false;
        }
        return true;
    }
    
    private readonly DbSet<Product> _table;
    private readonly DbContext _dbContext;
}