This project maintains EF UnitOfWork (UoW) approach, but gets rid of repositories, using UoW directly.
IUnitOfWork interface exposes all the methods needed to query and modify data.
public interface IUnitOfWork
{
ValueTask<TEntity?> GetById<TEntity>(object?[]? id, CancellationToken cancellationToken = default)
where TEntity : class;
Task<List<TEntity>> List<TEntity>(CancellationToken cancellationToken = default)
where TEntity : class;
Task<List<TProjection>> List<TEntity, TProjection>(Query<TEntity, TProjection> query, CancellationToken cancellationToken = default)
where TEntity : class;
Task<TEntity?> FirstOrDefault<TEntity>(CancellationToken cancellationToken = default)
where TEntity : class;
Task<TProjection?> FirstOrDefault<TEntity, TProjection>(Query<TEntity, TProjection> query, CancellationToken cancellationToken = default)
where TEntity : class;
void Add<TEntity>(TEntity entity)
where TEntity : class;
void Update<TEntity>(TEntity entity)
where TEntity : class;
void Delete<TEntity>(TEntity entity)
where TEntity : class;
}To query data, the UoW uses the Query class, which represents the DB operation to read data. This way, it forces you to project the data to a specific class/dto, avoiding retrieving lots of data.
There are 3 query classes:
Query<TEntity, TProjection>. Queries the TEntity DbSet and must return a TProjection item.SelfQuery<TEntity>. Queries the TEntity DbSet and must return the same TEntity.PaginatedQuery<TEntity, TProjection>. Has a constructor which receives a page number and page size, and paginates the response.