VCloud REST API - Change computername on VApp Instantiation

Question

I am using the VCloud REST API to instantiate a VApp from a Vapp template
When I POST the following XML
<?xml version="1.0" encoding="UTF-8"?>
  <InstantiateVAppTemplateParams xmlns="http://www.vmware.com/vcloud/v1.5"  xmlns:ovf="http://schemas.dmtf.org/ovf/envelope/1"
    deploy="false"
    name="Aruba005"
    powerOn="false">
    <Description>VApp Small Description</Description>
    <Source
      href="https://xxxx-vcd.vchs.vmware.com:443/api/vAppTemplate/vappTemplate-ca1d5d90-6c48-xxx-92cd-xxxxxxx"
      name="my_base_image"
      type="application/vnd.vmware.vcloud.vAppTemplate+xml"/>
</InstantiateVAppTemplateParams>
The VApp is created successfully.
However the VM has the default ComputerName baked into the VApp template
How do I change the above payload to change the ComputerName?

Answer 1

In the end had to create a Vapp and then change the VM name as a separate call
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<vcloud:Vm xmlns:vcloud="http://www.vmware.com/vcloud/v1.5"
    name="ayubtest">
    <vcloud:Description>A waffer thin VM</vcloud:Description>
</vcloud:Vm>
Using PUT as specified here: VMware vCloud Director Documentation Center