CODEWITHSUNDEEP
jenkins-pipelinejq
Innocentspirit
Innocentspirit

Reputation: 23

jq in a Jenkins pipeline not saving output to variable

So in my Jenkins pipeline I run a couple of curl commands across different stages. I store the ouput of Stage1 into a file and for every item in that list I run another curl command and use the output of that to extract some values using jq.

However from the second stage I can't seem to store the jq extracted values into variables to echo them later. What am I doing wrong?

{Stage1}
.
.
.
{Stage2}
def lines = stageOneList.readLines()
lines.each { line -> println line
                        
stageTwoList = sh (script: "curl -u $apptoken" + " -X GET --url " + '"' + "$appurl" + "components/tree?component=" + line + '"', returnStdout: true)                                
pfName = sh (script: "jq -r '.component.name' <<< '${stageTwoList}' ")
pfKey = sh (script: "jq -r '.component.key' <<< '${stageTwoList}' ")
echo "Component Names and Keys\n | $pfName | $pfKey |"
}

returns in the end for Stage2

[Pipeline] sh
+ jq -r .component.name
digital-hot-wallet-gateway
[Pipeline] sh
+ jq -r .component.key
dhwg
[Pipeline] echo
Component Names and Keys
 | null | null |

Any help in the right direction appreciated!

Upvotes: 0

Views: 1149

Answers (1)

Matthew Schuchard
Matthew Schuchard

Reputation: 28854

You passed true as the argument for the returnStdout argument to the shell step method for stageTwoList, but then forgot to use the same argument for the JSON parsed returns to the next two variable assignments:

def lines = stageOneList.readLines()
lines.each { line -> println line
                    
  stageTwoList = sh(script: "curl -u $apptoken" + " -X GET --url " + '"' + "$appurl" + "components/tree?component=" + line + '"', returnStdout: true)                                
  pfName = sh(script: "jq -r '.component.name' <<< '${stageTwoList}' ", returnStdout: true)
  pfKey = sh(script: "jq -r '.component.key' <<< '${stageTwoList}' ", returnStdout: true)
  echo "Component Names and Keys\n | $pfName | $pfKey |"
}

Note you can also make this much easier on yourself by doing the JSON parsing natively in Groovy and with Jenkins Pipeline step methods:

String stageTwoList = sh(script: "curl -u $apptoken" + " -X GET --url " + '"' + "$appurl" + "components/tree?component=" + line + '"', returnStdout: true)
Map stageTwoListData = readJSON(text: stageTwoList)
pfName = stageTwoListData['component']['name']
pfKey = stageTwoListData['component']['key']

Upvotes: 1

Related Questions