How to define different privacy for different users in Fabric 1 0

Question

I have a chaincode of a house brokerage system.. In this i want different privacy for data for different users. Like, i want certain users to see all data.. I want banks to see only payments and owners should not be able to see payments but can see other data.. I can use channels to do this but i would have to deploy two different contracts and i dont want to do that. what other way can i do this?

Answer 1

The privacy restriction to particular peers in the network is not yet availabale in the current version. It is planned to be provided as a feature in the upcoming versions.

For now, you can use getCurrentParticipant() runtime API and add access control to transaction processor functions. More about it, here: https://hyperledger.github.io/composer/reference/acl_language.html