In Zendesk Guide, we can get the user attributes from the global HelpCenter object.

For example:

let user = {};

if (HelpCenter?.user?.email && HelpCenter?.user?.name) {
	// The user is authenticated
	user = {name: HelpCenter.user.name, email: HelpCenter.user.email};
}

const aptedgeConfig = {
  apiKey: "API_KEY",
  instanceName: "INSTANCE_NAME",
  user: user
};
	
// Remainder of install script