[FIXED] Get Jenkins filtered job param value using xpath

Issue

I have the below xml from the jenkins job data. I am trying extract the value for the selected name yaml_data inside the paramters..

I am using below url to filter the data but it still lists all the name and value of the parameters.

https://jenkins.myorg.com/job/architecture-shared-services/job/nyjobdata/lastBuild/api/xml?tree=actions[parameters[name[contains(text(),yaml_data)],value]]

<workflowRun _class="org.jenkinsci.plugins.workflow.job.WorkflowRun">
    <action _class="hudson.model.ParametersAction">
        <parameter _class="hudson.model.TextParameterValue">
            <name>yaml_data</name>
            <value>mycoredatahere</value>
        </parameter>
        <parameter _class="hudson.model.TextParameterValue">
            <name>artifact_no_ext</name>
            <value>../pom</value>
        </parameter>
        <parameter _class="hudson.model.TextParameterValue">
            <name>artifact_repository</name>
            <value>myorg-io-maven-hosted</value>
        </parameter>
        <parameter _class="hudson.model.TextParameterValue">
            <name>release</name>
            <value>build</value>
        </parameter>
        <parameter _class="hudson.model.TextParameterValue">
            <name>build_name</name>
            <value>maven</value>
        </parameter>
</action>
</workflowRun>

Solution

@ycr has provided the correct answer, this just expands a bit more information based on the above question

You were nearly there, but your request is asking to display the tree: /xml?tree=

What you actually want to request is the parameter tag with its values from the xml api where the parameter name has a specific text by using xpath as you noted in the question, so that should be: /xml?xpath=

Append the url filter after api with:

/xml?xpath=//parameter[name[contains(text(),%27yaml_data%27)]]

(where %27 is the unicode character for apostrophe - so essentially you are sending this : 'yaml_data')

the result returned should be the following:

   <parameter _class="hudson.model.TextParameterValue">
       <name>yaml_data</name>
       <value>mycoredatahere</value>
   </parameter>

You're full url query based on the above question will be:

https://jenkins.myorg.com/job/architecture-shared-services/job/nyjobdata/lastBuild/api/xml?xpath=//parameter[name[contains(text(),%27yaml_data%27)]]

If you want the value only, then add a /value at the end of the query, the result returned should be the following:

       <value>mycoredatahere</value>

You're full url query will be:

https://jenkins.myorg.com/job/architecture-shared-services/job/nyjobdata/lastBuild/api/xml?xpath=//parameter[name[contains(text(),%27yaml_data%27)]]/value

Answered By - djmonki
Answer Checked By - Mary Flores (JavaFixing Volunteer)