gistfile1.txt

const https = require('https');

const yourWebHookURL = ''; // PUT YOUR WEBHOOK URL HERE
const slackMessage = {
  'text': 'your message here', 
};

function sendSlackMessage (webhookURL, messageBody) {
  try {
    messageBody = JSON.stringify(messageBody);
  } catch (e) {
    throw new Error('Failed to stringify messageBody', e);
  }
  return new Promise((resolve, reject) => {

    const requestOptions = {
      method: 'POST',
      header: {
        'Content-Type': 'application/json'
      }
    };

    const req = https.request(webhookURL, requestOptions, (res) => {
      let response = '';

      res.on('data', (d) => {
        response += d;
      });
      res.on('end', () => {
        resolve(response);
      })
    });

    req.on('error', (e) => {
      reject(e);
    });
    req.write(messageBody);
    req.end();
  });
}