If you don't want to import balances, leave the Balance column blank. When you're formatting the file, please consider the following: Every column on the import file has a column header. If you don't want to include an optional field, delete the column or leave all cells in the column...
public interface ITokenStore { IConsumer Find(string user); void Add(IToken token); void Delete(IToken token); }You can provide your own implementation to suit the database you are using for your product. Ensure the dates on the token are stored in UTC.The examples are...