NodeJS troubleshooting help

Curious to know, are you using setinterval() for your repeated REST request? You can perhaps make it simpler

async function getArrivalTime() {
  // do your REST fetch here. You can use whatever library so for example I am using fetch from node-fetch here 
  const baseURL = `API`;
  let res = await fetch(baseURL).catch((err) => {
    throw new Error(`Error fetching content from ${baseURL}. ${err}`);
  });

  if (!res.ok) {
    throw new Error(`Response status from ${baseURL}: ${res.status}`);
  }
  // manipulate your response
  // let body = await res.text();
  // Content body from github is base64 encoded
  // return Base64.decode(JSON.parse(body).content);
}

setInterval(() => {
  let content = await getArrivalTime();
  // Console logs, write to file...etc
  // MQTT publish to broker
}, 1000);
// Note this does it every 1 second!

and then just run your file node file.js