index.js

app.post("/hook", (req, res) => {
  let payload = req.body;
  let header = req.headers;
  res.status(200).end()

  let pullRequestBranch = getPullRequestBranch(payload);
  let baseBranch = getBaseBranch(payload);
  let commitURL = getCommitURL(payload);
  let action = getAction(payload);
  let XGithubDelivery = getXGithubDelivery(header);
  let XGithubEvent = getXGithubEvent(header);
  let jenkinsTargetUrl = process.env.JENKINS_BASE_URL;
  let token = process.env.JENKINS_TOKEN;
  let basicAuth = process.env.JENKINS_BASIC_AUTH;
  let state = process.env.GITHUB_STATE;
  let message = process.env.MESSAGE;
  let accessToken = process.env.GITHUB_TOKEN;

  if ((action == "opened" && XGithubEvent == "pull_request") && (baseBranch == process.env.SUBJECT_BRANCH) && (pullRequestBranch || baseBranch || commitURL != undefined)) {
    updateCommitStatus(commitURL, state, jenkinsTargetUrl, message, accessToken);
    postToJenkins(payload, jenkinsTargetUrl, token, basicAuth, XGithubDelivery, baseBranch, process.env.SUBJECT_BRANCH);
  } else {
    console.log(`Request not made: \n\n Action: ${action} \n XGithubEvent: ${XGithubEvent} \n pullRequestBranch: ${pullRequestBranch} \n commitURL: ${commitURL} \n Subject Branch: ${process.env.SUBJECT_BRANCH} \n Base Branch: ${baseBranch}`);
  }

});