UCCE REST API PUT method always gives changestamp exception

[Peter Straatman]

Hello

I have UCCE 11 and am using Firefox httprequester to test UCCE REST API to update an agent attribute (with the idea to write a Finesse gadget  later on).

The GET works ok (basic auth, application/xml, 10.100.206.5 being my AW/HDS/DDS

http://10.100.206.5/unifiedconfig/config/agent/5001

giving all agent details (verified all values against actual the awdb)

When trying a PUT (to change the attribute value from 3 to 4) with

<agent>
    <changeStamp>40</changeStamp>
    <agentAttributes>
        <agentAttribute>
            <attribute>
                <refURL>/unifiedconfig/config/attribute/5000</refURL>
                <name>English</name>
                <dataType>4</dataType>
            </attribute>
            <attributeValue>4</attributeValue>
        </agentAttribute>
    </agentAttributes>
</agent>

the following is returned

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<apiErrors>
    <apiError>
        <errorData>changeStamp</errorData>
        <errorMessage>Another user has changed this object.  Refresh, then try to save again.</errorMessage>
        <errorType>invalidInput.changeStamp</errorType>
    </apiError>
</apiErrors>

What am I doing wrong ?

Regards

[Sasikumar Divvela]

Did you check what is the current changestamp in the database for the record which you are trying to update. 

You should pass +1 for that.

And at the same time do we need to put changestamp under attribute tab ?

[Peter Straatman]

thx for the quick reply

the GET gave 39 so I used 40 for changeStamp

putting changeStamp under attribute tab (or any other location) gives 

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<apiErrors>
    <apiError>
        <errorData>changeStamp</errorData>
        <errorMessage>This field is required and cannot be empty.</errorMessage>
        <errorType>invalidInput.fieldRequired</errorType>
    </apiError>
</apiErrors>

[Tim Warner · Accepted solution]

I think you need to keep the change number the same as the put.

If the Put does not change anything then the number does not increment.