5.5

Table Of Contents
4 Update the section by making a PUT request to the section’s edit link, a Link element in the section
where rel="edit", and supplying the modified section in the request body.
Modified sections must contain all required elements, even if you are not changing their values. Because
optional elements revert to default values if they are omitted or empty, it is a best practice to include
optional elements in updates. Link elements and href attributes from responses do not need to be included
in modified sections. Some elements and attributes might be read-only. See the schema reference for details.
NOTE You cannot make configuration changes to a vApp if it is in maintenance mode. A system
administrator can put a vApp into maintenance mode to prevent metadata changes during administrative
operations such as backup, restore, and upgrade. See “Summary of System Administration Requests,” on
page 235.
Retrieve the Configuration Links for a vApp
Each modifiable section of a vApp includes a Link element whose rel attribute has the value edit. You
cannot modify sections that do not contain this Link element.
Any ovf:SectionType element can include an arbitrary number of Link elements. Sections that you can
modify include a Link element where rel="edit". To modify one of these sections, retrieve it by making a
GET request to the URL in the section's href attribute. Then make a PUT request to the href attribute value
of the Link where rel="edit" to update the section with your modifications.
Prerequisites
Verify that you are logged in to the vCloud API as an administrator or vApp Author.
Procedure
1 Retrieve the XML representation of the vApp.
Use a GET request as shown in “Example: Configuration Links in a vApp,” on page 118.
2 Examine the response for edit links to modifiable sections.
The response portion of “Example: Configuration Links in a vApp,” on page 118 includes one of these
links for each of the modifiable sections of the vApp. You cannot modify sections that do not contain a
Link element where rel="edit".
Example: Configuration Links in a vApp
In this example, the response was edited to show only the modifiable sections of the VApp element. Each Vm
in the Children element of the VApp includes additional configuration links, shown in
“Example: Configuration Links in a Vm Element,” on page 120.
Request:
GET https://vcloud.example.com/api/vApp/vapp-7
Response:
200 OK
Content-Type: application/vnd.vmware.vcloud.vApp+xml
...
<VApp ... href="https://vcloud.example.com/api/vApp/vapp-7">
...
<LeaseSettingsSection ...
href="https://vcloud.example.com/api/vApp/vapp-7/leaseSettingsSection/" ...>
...
<Link
rel="edit"
vCloud API Programming Guide
118 VMware, Inc.