efcoreinmemoryfive.cs

public class UserSettingsService : IUserSettingsService
{
    private readonly StockNotificationContext _dbContext;

    public UserSettingsService(StockNotificationContext dbContext)
    {
        _dbContext = dbContext;
    }

    public async Task<IEnumerable<Seller>> GetSellers()
    {
        return await _dbContext.tblSellers
                        .Select(x => new Seller
                        {
                            Id = x.Id,
                            Name = x.Name,
                            Url = x.Url
                        })
                        .ToListAsync();
    }
}