Here's how I've updated group membership in the past

It's a bit more than you had.

#!/bin/sh



#API login info

apiuser="USERNAME"

apipass='PASSWORD'

jamfProURL="https://jamfproserver:8443"



ComputerName=$(hostname)



#update group with ID 232 aka group you want

GroupID="1234"

apiURL="JSSResource/computergroups/id/${GroupID}"



#XML header stuff

xmlHeader="<?xml version="1.0" encoding="UTF-8" standalone="no"?>"



apiData="<computer_group><id>${GroupID}</id><name>Whatever the GroupName Is</name><computer_additions><computer><name>$ComputerName</name></computer></computer_additions></computer_group>"



curl -sSkiu ${apiuser}:${apipass} "${jamfProURL}/${apiURL}" 

    -H "Content-Type: text/xml" 

    -d "${xmlHeader}${apiData}" 

    -X PUT  > /dev/null

@boberito

apiData="<computer_group><id>${GroupID}</id><name>Whatever the GroupName Is</name><computer_additions><computer><name>$ComputerName</name></computer></computer_additions></computer_group>"

SOLID! Thank you! This was driving me crazy, huge help man.

@boberito

You ever done this process for Mobile Devices. Tried to adapt your method but having no luck.

Got this working.

<mobile_device_group><id>${GroupID}</id><name>GROUP NAME</name><mobile_device_additions><mobile_device><serial_number>SERIAL NUMBER</serial_number></mobile_device></mobile_device_additions></mobile_device_group>"

@boberito

Nice script but I seem to have to adde the ComputerName to the APIData call, if I put the computerName as below nothing happens

ComputerName=$C024567GH

@MatG In a bash script the $ means get the value of the variable following the $, so what you wrote is trying to assign the value of a variable named C024567GH to the variable ComputerName. Since you're trying to assign the serial number C024567GH to ComputerName what you want to write is ComputerName="C024567GH".

Can anybody tell me, what the minimal needed API account rights are, for this to work?

@L3nny5
needs admin to PUT/POST

Regarding API User privileges, I used Access Level: Full, Privilege Set: Custom (which starts with NO privileges), then added Jamf Pro Server Objects> API Integrations (C-R-U-D as needed) and Static Computer Groups (C-R-U-D as needed)

Confirmed with my Jamf Buddy: ":8443" is not needed for Jamf Cloud.

@adamnewman I'm trying to do this with mobile devices as well but I'm having issues with using this with Basic Authorization and getting "Object must be specified as an xml file". Any thoughts?

Heyo, really need to get this working for a workflow. I keep getting error code 127 (command not found) and I'm not sure why...

Looks like it's erroring out in lines 22-23 of the last curl command:

This is the error I get in Terminal when I call the policy via -trigger: 

Any ideas? 

@user-dzIJnCprEb The curl command should all be on one line, or you need to use the \\ line continuation indicator if you're breaking it across multiple lines, e.g:

Gah, ok fixed that. So now the policy completes, but the machine is not added to the group.

If I run the script locally in verbose, I get the following, but again Mac is not added to the group:

 What am I missing?

@user-dzIJnCprEb Looking at the verbose output it appears you are escaping characters in your computer_name field incorrectly. The escape character is a \\, not a '. Using computer_name is also problematic as there's no guarantee that name will be unique. Using serial_number would be safer (although surprisingly not guaranteed to be unique) so the apiData would look something like this:

Did you ever figure this out?  We are seeing the same thing.  The command completes but we get bad request in the return.

Thanks!

#!/bin/sh



#API login info

apiuser="USERNAME"

apipass='PASSWORD'

jamfProURL="https://jamfproserver:8443"



ComputerName=$(hostname)



#update group with ID 232 aka group you want

GroupID="1234"

apiURL="JSSResource/computergroups/id/${GroupID}"



#XML header stuff

xmlHeader="<?xml version="1.0" encoding="UTF-8" standalone="no"?>"



apiData="<computer_group><id>${GroupID}</id><name>Whatever the GroupName Is</name><computer_additions><computer><name>$ComputerName</name></computer></computer_additions></computer_group>"



curl -sSkiu ${apiuser}:${apipass} "${jamfProURL}/${apiURL}" 

    -H "Content-Type: text/xml" 

    -d "${xmlHeader}${apiData}" 

    -X PUT  > /dev/null

how to use this in postman?

You could try the final script shown here https://community.jamf.com/t5/jamf-pro/bearer-token-api-and-adding-computer-to-static-group/td-p/261269

It's based on things several people above have said as well as Richard Trouton and uses the new Bearer Authentication Token that you should be moving to before Jamf shuts down the Basic Auth

Will this work for multiple serial numbers?

something like 

<serial_number>${ xxxxxxxx, xxxxxxxx, xxxxxxx}</serial_number>

I mean

ComputerSerial=$( xxxxx, xxxxx, xxxx )