Hands-On RESTful Web Services with ASP.NET Core 3

Defining the repository pattern and unit of work

Before we start, we need to define some interfaces in the Catalog.Domain project. Let's proceed by setting a generic interface to determine the unit of work of our repository:

using System;using System.Threading;using System.Threading.Tasks;namespace Catalog.Domain.Repositories{    public interface IUnitOfWork : IDisposable    {        Task<int> SaveChangesAsync(CancellationToken cancellationToken =          default(CancellationToken));        Task<bool> SaveEntitiesAsync(CancellationToken cancellationToken =          default(CancellationToken));    }}

IUnitOfWork defines two methods: SaveChangesAsync and SaveEntitiesAsync. These two methods are used to save changes in our collection to the database effectively. These methods are ...