Temporal activity heartbeat tracker

userscript.js

// ==UserScript==
// @name        Shows history of heartbeats on temporal.io
// @namespace   Violentmonkey Scripts
// @match       https://cloud.temporal.io/namespaces/filing-factory-prod.laf1h/workflows/*
// @grant       none
// @version     1.0
// @author      ikari
// @description 10/24/2023, 9:57:35 PM
// ==/UserScript==
let tt="";
let tm = setInterval(function() {
  let nt = document.querySelector('div.pending-activity-failure-details > div > div > div > div > div.cm-scroller > div.cm-content').innerText;
  if (tt != nt) {
    tt = nt; console.log(nt);

    let logWin = document.querySelector('#logWin');
    if (!logWin) {
      logWin = document.createElement('div');
      logWin.id = 'logWin';
      logWin.style = `position: absolute;
    right: 10px;
    bottom: 10px;
    background: rgba(0,0,0,0.7);
    border: 2px solid white;
    border-radius: 10px;
    color: white;
    font-family: monospace;
    white-space: pre;
    max-height: 20em;
    overflow-y: scroll;`;
      document.body.appendChild(logWin);
    }
    let line = document.createElement('div');
    line.innerText = (new Date()) + nt;
    logWin.appendChild(line);
  }
}, 1000)