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Minimal Analytics Snippet
(function (context, trackingId, options) {
const history = context.history;
const doc = document;
const nav = navigator || {};
const storage = localStorage;
const encode = encodeURIComponent;
const pushState = history.pushState;
const typeException = 'exception';
const generateId = () => Math.random().toString(36);
const getId = () => {
if (!storage.cid) {
storage.cid = generateId()
}
return storage.cid;
};
const serialize = (obj) => {
var str = [];
for (var p in obj) {
if (obj.hasOwnProperty(p)) {
if(obj[p] !== undefined) {
str.push(encode(p) + "=" + encode(obj[p]));
}
}
}
return str.join("&");
};
const track = (
type,
eventCategory,
eventAction,
eventLabel,
eventValue,
exceptionDescription,
exceptionFatal
) => {
const url = 'https://www.google-analytics.com/collect';
const data = serialize({
v: '1',
ds: 'web',
aip: options.anonymizeIp ? 1 : undefined,
tid: trackingId,
cid: getId(),
t: type || 'pageview',
sd: options.colorDepth && screen.colorDepth ? `${screen.colorDepth}-bits` : undefined,
dr: doc.referrer || undefined,
dt: doc.title,
dl: doc.location.origin + doc.location.pathname + doc.location.search,
ul: options.language ? (nav.language || "").toLowerCase() : undefined,
de: options.characterSet ? doc.characterSet : undefined,
sr: options.screenSize ? `${(context.screen || {}).width}x${(context.screen || {}).height}` : undefined,
vp: options.screenSize && context.visualViewport ? `${(context.visualViewport || {}).width}x${(context.visualViewport || {}).height}` : undefined,
ec: eventCategory || undefined,
ea: eventAction || undefined,
el: eventLabel || undefined,
ev: eventValue || undefined,
exd: exceptionDescription || undefined,
exf: typeof exceptionFatal !== 'undefined' && !!exceptionFatal === false ? 0 : undefined,
});
if(nav.sendBeacon) {
nav.sendBeacon(url, data)
} else {
var xhr = new XMLHttpRequest();
xhr.open("POST", url, true);
xhr.send(data);
}
};
const trackEvent = (category, action, label, value) => track('event', category, action, label, value);
const trackException = (description, fatal) => track(typeException, null, null, null, null, description, fatal);
history.pushState = function (state) {
if (typeof history.onpushstate == "function") {
history.onpushstate({ state: state });
}
setTimeout(track, options.delay || 10);
return pushState.apply(history, arguments);
}
track();
context.ma = {
trackEvent,
trackException
}
})(window, "XX-XXXXXXXXX-X", {
anonymizeIp: true,
colorDepth: true,
characterSet: true,
screenSize: true,
language: true
});
@davidbgk

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@davidbgk davidbgk commented Oct 14, 2020

See https://minimalanalytics.com/ for a minimized version.

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