C#: What is Entity Framework Core?

1public class AppDbContext : DbContext
2{
3    public DbSet<User> Users { get; set; }
4    public DbSet<Order> Orders { get; set; }
5
6    protected override void OnModelCreating(ModelBuilder builder)
7    {
8        builder.Entity<User>()
9            .HasMany(u => u.Orders)
10            .WithOne(o => o.User);
11    }
12}

1// Create
2context.Users.Add(new User { Name = "Alice" });
3await context.SaveChangesAsync();
4
5// Read
6var user = await context.Users.FindAsync(id);
7
8// Update
9user.Name = "Bob";
10await context.SaveChangesAsync();
11
12// Delete
13context.Users.Remove(user);
14await context.SaveChangesAsync();