Jenkins – How to POST JSON data in body with Jenkins http-request plugin and Pipeline

groovyhttp-requestJenkinsjenkins-pipelinejenkins-plugins

With v1.8.10 of the http-request plugin for Jenkins (I'm running 1.643), there is now support for POSTing a body in the request — so this thread does not apply. I am wondering how to use this functionality in a Pipeline (v2.1) Groovy script? The Snippet Generator does not include this new field, so I have no example to build off of.

Snippet Generator

I have tried various ways to get the JSON data into the request body, but my Tomcat server always returns http 400 status code: The request sent by the client was syntactically incorrect.

Things I have tried:

def toJson = {
    input ->
    groovy.json.JsonOutput.toJson(input)
}
def body = [
    displayName: [
        text: "smoke test"],
    description: [
        text: "for smoke testing"],
    genusTypeId: "type"
]
response = httpRequest consoleLogResponseBody: true, contentType: 'APPLICATION_JSON', httpMode: 'POST', requestBody: toJson(body), url: "https://${host}", validResponseCodes: '200'

def body = [
    displayName: [
        text: "smoke test"],
    description: [
        text: "for smoke testing"],
    genusTypeId: "type"
]
response = httpRequest consoleLogResponseBody: true, contentType: 'APPLICATION_JSON', httpMode: 'POST', requestBody: body, url: "https://${host}", validResponseCodes: '200'

response = httpRequest consoleLogResponseBody: true, contentType: 'APPLICATION_JSON', httpMode: 'POST', requestBody: "{\"displayName\":{\"text\":"smoke test\"},\"description\":{\"text\":\"for smoke testing\"}, \"genusTypeId\":\"type\"}", url: "https://${host}", validResponseCodes: '200'

response = httpRequest consoleLogResponseBody: true, contentType: 'APPLICATION_JSON', httpMode: 'POST', requestBody: "'{\"displayName\":{\"text\":"smoke test\"},\"description\":{\"text\":\"for smoke testing\"}, \"genusTypeId\":\"type\"'}", url: "https://${host}", validResponseCodes: '200'

Scanning the http-request library code, it seems like setting this flag should work. I don't know how Pipeline plugins / Jenkins plugins work, so I wonder if the Pipeline -> http-request code accounts for this new parameter? Can someone point me to how I can make POSTs with request bodies work with the Pipeline, or where I need to modify Pipline plugin code to make the connection?

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