How do you register a new user (with attributes) in Hyperledger Fabric Client (HFC)? - hyperledger

Question

I am reviewing the sample code for the HFC SDK and saw ways to manage users.
To enroll an existing user the following function is used:
chain.enroll
To register and enroll a new user the following function is used:
chain.registerAndEnroll
However, the sample code did not provide an example for a register only function:
chain.register
If I understand it correctly both the chain.enroll and chain.registerAndEnroll will both save the user key/certificate in the machine where the functions are called.
If I want an admin to create a new user (e.g., userA), I cannot use the chain.registerAndEnroll function since the key/certificate will be saved in the admin's machine instead of userA's machine since the function performs not only a register but also an enroll. Hence, my need for a register only function.
In addition, how do I add attributes to users using HFC similar to the attributes that can be defined in membersrvc.yaml?

Answer 1

Unfortunately I was unable to find an online link to the hfc API doc (although you can build the doc locally if needed).
That being said, there is a chain.register function which takes a RegistrationRequest object and then returns the enroll secret/password you would later use to enroll the new user:
//create some attributes
var attributes = [{name:'foo',value:'bar'}];
var registrationRequest = {
roles: [ role ],
enrollmentID: name,
affiliation: "bank_a",
attributes: attributes,
registrar: registrar
};
chain.register(registrationRequest, function(err, enrollmentPassword) {
//your code here
}