Inserting experiments with Google Analytics content using the Node.JS client library

Question

I am trying to set up a content experiment using Node.js Client Library and was unable to process the syntax. Where can I place the body (experiment resource) as described here?

https://developers.google.com/analytics/devguides/config/mgmt/v3/mgmtExperimentsGuide#insert

This code to list existing experiments works as expected:

var listExperiments = function(){
  googleapis
  .discover('analytics', 'v3')
  .execute(function(err, client) {
    var request = client
    .analytics.management.experiments.list({
        accountId : accountId,
        webPropertyId : webPropertyId,
        profileId : profileId
        })
    .withApiKey(browserAPIKey)
    .withAuthClient(oauth2Client)

      request.execute(function(err,result){
        if (err){
          console.log(err);
          res.send(402);          
        } else {
          console.log(result);
          res.send(200);
        }
      });
  });
}

However, when I try to insert a new experiment, I get a "Field Resource" error.

var body = {       
  "name": "myExperimentName",
  "status": "READY_TO_RUN",
  "objectiveMetric":"ga:bounces",
  "variations": [
    { "name": "text1", "url":"http://www.asite.net", "status":"ACTIVE" },
    { "name": "text2", "url":"http://www.asite.net", "status":"ACTIVE" }
   ]
 };

var insertExperiment = function(){
  googleapis
  .discover('analytics', 'v3')
  .execute(function(err, client) {
    var request = client
    .analytics.management.experiments.insert({
        accountId : accountId,
        webPropertyId : webPropertyId,
        profileId : profileId,
        resource : body
        })
    .withApiKey(browserAPIKey)
    .withAuthClient(oauth2Client)

    request.execute(function(err,result){
      if (err){
        console.log(err);
        res.send(402);          
      } else {
        console.log(result);
        res.send(200);
      }
    });
  });
}

. API- -, -, . insert(), "body: body" "resource: body", JSON.stringifying body . .

!

, Javascript RESTful, Node.

EDIT: Burcu Dogan Google. :

.analytics.management.experiments.insert({
accountId : accountId,
webPropertyId : webPropertyId,
profileId : profileId
}, body)