How to map fabric credentials and user IDs provided by the front end apps(such as Angular apps) when calling composer-rest-server?

Question

I read the following sites and understood the concept of wallet.

IBM/BlockchainSmartContractTrading-CompositeJourney:
https://github.com/IBM/BlockchainSmartContractTrading-CompositeJourney

But what we want to do is provide authentication in the front end application (not in the rest server) and map those user IDs to Fabric credentials. In other words, we would like to specify each Fabric credential which belongs to each user who logged in to the front end app when calling rest API from multiple users concurrently.

Would it possible to implement such scenario leveraging composer-rest-server?
(I suppose that we can implement such scenario leveraging client SDK...)

Answer 1

Yes! The scenario you describe is documented here: https://hyperledger.github.io/composer/integrating/enabling-multiuser.html