assign users to computers via API

What I do is have a policy that's scoped to all computers, but limited to our technicians' LDAP group. When the user is logged into the computer, the technician logs into self service and runs a policy with this script:

#!/bin/sh

# get the last user that logged into the computer
lastUser=`defaults read /Library/Preferences/com.apple.loginwindow lastUserName`

# echo the last user's username so it's in the policy log for error checking
echo "$lastUser is last user"

# submit inventory for the last user's username in the JSS
jamf recon -endUsername "$lastUser"

Thanks @jbourdon but since our JSS talks to our service desk system I need this to happen during initial setup

@RogerUL Can you be more specific on what it is you want with this? Where are you looking to assign the user to the computer? In the User and Location details?

@mm2270 yes exactly

Have you tried using the check box of "Collect user and location information from LDAP" from here? https://jss.vcpusd.k12.ca.us:8443/inventoryCollection.html?id=0&o=r

Was any progress ever made with this? automating the process with the API?