WebHook Scripting Gitlab

var res = {"content": { "text": " ", "username":" ", "attachments": [ { "title": "", "title_link": "", "text": "", "image_url": "", "color": "" } ] } }

if(headers['x-gitlab-event'] === "Push Hook"){

res.content.text= content.user_name+" pushed "+ content.total_commits_count +" commits to "+content.project.name; res.content.attachments[0].color="green";
res.content.attachments[0].title=content.user_name; res.content.attachments[0].image_url=content.user_avatar; }