DB Connection .net core

IDbConnectionFactory.cs

public interface IDbConnectionFactory
{
	IDbConnection Get(string connectionString);
}

ISuperService.cs

public interface ISuperService
{
	void DoStuff();
}

MySuperService.cs

public class MySuperService : ISuperService
{
	private readonly IDbConnectionFactory _dbConnectionFactory;

	public MySuperService(IDbConnectionFactory dbConnectionFactory)
	{
		_dbConnectionFactory = dbConnectionFactory;
	}

	public void DoStuff()
	{
		using (var conn = _connectionFactory.Get(_connectionString))
		{
			conn.Open();

			using (var cmd = conn.CreateCommand())
			{
				cmd.CommandText = "mySuperAwesomeStoredProc";
				cmd.CommandType = CommandType.StoredProcedure;

				cmd.AddParameter("someParam", 42);

				using (var reader = cmd.ExecuteReader())
				{
					while (reader.Read())
					{
						Console.WriteLine("Some record was returned");
					}
				}
			}
		}
	}
}

SqlDbConnectionFactory.cs

public class SqlDbConnectionFactory : IDbConnectionFactory
{
	public IDbConnection Get(string connectionString)
	{
		return new SqlConnection(connectionString);
	}
}