Send Current User or User GUID thru HTTP Post

Hi,

I have scenario whereby the value of the parameter will be generated similar like Process Approver (http://<Server>/<WebAccess>/object/open.rails?class_name={Class/Module/Name}.{Class/Name}&key={Guid}), so it should look like this: http://<Server>/<WebAccess>/object/open.rails?current_user={Guid} for the HTTP Post.

Is anyone there have implemented similar like mine because I want to pass some parameter such as Current User, thru HTTP Post.

Thank you.

REGARDS

Dodi