C# 7 and .NET Core 2.0 High Performance

Creating a repository interface

We will create a generic repository interface that will be implemented by each service's repository class, as each service will be following a DDD approach and has its own repository to give meaningful information to the developer based on the business domain. In this interface, we can keep generic methods such as All and Contains and a property to return UnitOfWork:

public interface IRepository<T> where T : BaseEntity 
{ 
  IUnitOfWork UnitOfWork { get; } 
 
  IQueryable<T> All<T>() where T : BaseEntity; 
  T Find<T>(Expression<Func<T, bool>> predicate) where T : BaseEntity; 
     
  bool Contains<T>(Expression<Func<T, bool>> predicate) where T : BaseEntity; 
}