Jenkinsfile write JSON file

java json jenkins groovy jenkins-pipeline

13,971

Solution 1

Got it!

script {
          def someMap = [
              'name' : "john",
              'surname' : "doe"
          ]
          def json = new groovy.json.JsonBuilder()
          json "people": someMap
          def file = new File("$WORKSPACE/people.json")
          file.write(groovy.json.JsonOutput.prettyPrint(json.toString()))
        }

Solution 2

You can use writeJSON: Write JSON to a file in the workspace.

https://jenkins.io/doc/pipeline/steps/pipeline-utility-steps/#writejson-write-json-to-a-file-in-the-workspace

Solution 3

If you don't want to use any plugin, there is a workaround with the core Jenkins method writeFile e.g.:

writeFile(
    file: "foo/bar.json",
    text: """\
        {
            'a': 'x',
            'b': 'y'
        }
    """.stripIndent()
)

13,971

Author by

JoP

Updated on June 21, 2022

Comments

JoP almost 2 years
From within my Jenkinsfile, I am trying to create and write a simple JSON file to the workspace folder.

The contents of the JSON file should be:
```
{"people": {"name":"john","surname":"doe"}}
```
Any ideas?
JoP over 5 years

I've tried that and got the following error: java.lang.ClassCastException: org.jenkinsci.plugins.pipeline.utility.steps.json.WriteJSONS‌tep.json expects interface net.sf.json.JSON but received class java.lang.String
Eugene Mihaylin over 5 years

can not help you with java. i'll add java tag to question.
JoP over 5 years

I'm not using Java, but using plain old Groovy.
Eugene Mihaylin over 5 years

java platform, i've added both tags
Matt Schuchard over 5 years

@JoP It sounds like your usage of the method is wrong. Update your question?