EF Core configures the model and interacts with the database through a class that derives from the Microsoft.EntityFrameworkCore.DbContext base class.

The DbContext base class builds your model based on the entities you include in it, either by defining properties of the DbSet<TEntity> type, or another entity if is being used by an already included entity.

Here is how the GiveNTake DbContext looks:

public class GiveNTakeContext : DbContext
{
    ...

    public DbSet<Product> Products { get; set; }
    public DbSet<Message> Messages { get; set; }
    public DbSet<Category> Categories { get; set; }
    public DbSet<City> Cities { get; set; }
    public DbSet<User> Users { get; set; }
    
    ...
}

For each entity we wish to include in our model, we added a DbSet property that will allow us to query and persist the entity.