Storing username and password

[brasmaq]

Is there some problem ask permission and save users login on server side to place bets using the API when needed?

[smilerdude]

Please clarify what you are wanting to do ? I'll give a couple of scenarios.

1) Are you building an App to sell to customers. Is this App run on their own hardware (PC/Tablet/Phone)?

In this scenario, the App should give the customer the option to store username/password locally to their own Hardware and encrypt the data using the appropriate Hash + Salts. Don't use MD5 hashes, they're totally insecure these days.

2) Are you building a service that runs on your own Server and all the code / executibles resides on your Server?

In this scenario, the customer gains access to Betfair API NG through a web browser or a client interface provided by yourself.

In either case, you'll be using the Subscription Model provided by Betfair. In this method, customer usernames/passwords are not permitted to be stored on your servers, see Betfairs API T+C's.

You can only store them, on the customers own hardware see scenario 1) for ideas.

If I have misunderstood your question, please provide more information about what you want to do and in what context you are going to use username/password information.