youtube api to comment on a video in nodejs

I am using googleapis npm module to comment on a video on youtube .Going through the documentation i have written the following code ...

service.commentThreads.insert({
   auth: auth,
   part: 'snippet',
   body: {
    "snippet": {
      "channelId": "UC_x5XG1OV2P6uZZ5FSM9Ttw",
      "topLevelComment": {
       "snippet": {
        "textOriginal": "This video is awesome!"
       }
      },
      "videoId": "MILSirUni5E"
     }
  }

    });

I would like a nodejs specific answer am i doing something wrong . The documentation asks for a request body which i think is right or is it supposed to be defined that way

via uman