Facing issue in handling Incoming data for userCreate event callback

Hi Team,

I am working on userCreate event subscription.
I have created a callback function which writes a new post in a forum : http://comity.stage.lithium.com/t5/forum1/bd-p/forum1

I want to read user's data i.e first name, lastname, email, userID, registration time, etc. inside my callback function.

my callback function working code :

<#assign userToken = http.request.parameters.name.get("token","") />
<#assign userEvent = http.request.parameters.name.get("event.type","") />
<#assign userNode = http.request.parameters.name.get("user","")/>


<#assign cnt = restadmin("/boards/id/forum1/messages/count").value />

<#assign new_post = restadmin("/boards/id/forum1/messages/post?message.subject=userCreate%20event%20handler${cnt}&message.body=post%20created%20on%20userCreate%20event${cnt}&message.teaser=teaser%20userCreate%20handler${cnt}") />


When I try to get email id of registered current user like :-

<#assign userNode = http.request.parameters.name.get("user","")/>
<#assign userEmail = userNode.email/>

my code stops working.

Please guide me to solve this issue.

Thank you,
Vaishnavi