@nuxtjs/web-vitals/dist/runtime/providers/gtm.mjs

Web Vitals for Nuxt.js

import { logError, logDebug, getConnectionSpeed } from "../utils.mjs";
export function sendToAnalytics({ fullPath, href }, metric, options) {
  if (!window.dataLayer) {
    logError("window.dataLayer is undefined, probably GTM is not installed");
    return;
  }
  const event = {
    event: "webVitals",
    webVitalsMeasurement: {
      page: fullPath,
      href,
      name: metric.name,
      id: metric.id,
      value: metric.value,
      delta: metric.delta,
      valueRounded: metric.valueRounded,
      deltaRounded: metric.deltaRounded,
      speed: getConnectionSpeed()
    }
  };
  if (options.debug) {
    logDebug(metric.name, JSON.stringify(event, null, 2));
  }
  window.dataLayer.push(event);
}