This is the JavaScript SDK used to send beacons to GroupBy. It can only run in the browser. A bundled UMD build is available from our CDN (see GroupBy docs for CDN link) and a CommonJS build is available for linking into NPM build processes with a bundler. E.g. React, Angular.

Usage from CDN

Add the CDN <script> to each page, above where the tracker is instantiated and used:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="http://cdn.groupbycloud.com/gb-tracker-client-<major_version>.min.js"></script>
    <script>
        var tracker = new GbTracker('customer_id', 'area');
        tracker.autoSetVisitor();

        tracker.sendAddToCartEvent({ ... });
    </script>
</head>
<body>
</body>
</html>

Usage with NPM

To import and use the tracker:

import { GbTracker } from 'gb-tracker-client';

const tracker = new GbTracker('customer_id', 'area');
tracker.autoSetVisitor();

tracker.sendAddToCartEvent({ ... });

If you're using TypeScript, you can also use the types for each event type. Each function has a corresponding TypeScript type that can be imported:

import { GbTracker } from 'gb-tracker-client';
import { AddToCartEvent } from 'gb-tracker-client/models';

const tracker = new GbTracker('customer_id', 'area');
tracker.autoSetVisitor();

const a: AddToCartEvent = { ... };
tracker.sendAddToCartEvent(a);

Options

The constructor for the tracker client has a third, optional parameter for providing options:

const tracker = new GbTracker('customer_id', 'area', {
    overrideUrl: '<some_url>' // Optional, overrides the URL the beacon is sent to. Useful for testing.
});

Shopper tracking

The first party cookie gbi_visitorId is set with an empiry time of 1 year that is extended each time the shopper visits again. This is used to anonymously track the shopper.

5.0.0 changes

IMPORTANT

As of version 5.0.0, the way shopper tracking works has changed and includes cross-domain support. Shoppers will be tracked across your domains if cross-domain rules are met (see next section). Tracking on domains whose apex domain has a two-level suffix is supported from version 5.1.2. Examples:

.com - You can use version 5.0.0 or higher.
.co.uk - You can use version 5.1.2 or higher.

Cross-domain rules

For shoppers to be tracked across your domains, the domains must share the same apex domain. Examples:

a.example.com and b.example.com
a.example.com and example.com
example.com and a.example.com

Starting with version 5.1.2, many two-level domain suffixes such as .co.uk are also supported. If your domain has a multi-level suffix that is not in the list of supported domain suffixes, please contact support@groupbyinc.com for assistance.

Upgrading from versions 3 or 4 and visitor ID re-use

If you upgrade from 3 or 4 to 5, the visitor ID values generated by version 3 or 4 of the tracker client will be re-used. Whichever domain the shopper visits next once you start using version 5, the visitor ID generated for that domain will be re-used as the visitor ID for the apex domain, thereafter shared between each of your domains.

For example, if a shopper performed the following events, the visitor ID abc would be re-used:

Visits www.example.com, at which point version 3 or 4 sets the visitor ID to abc.
Performs a search.
Views a product and adds it to their cart (where they're brought to checkout.example.com), at which point version 3 or 4 sets the visitor ID to bcd.
Decides not to follow through with purchasing the product.
Waits a while, but less than a year, during which time you upgrade to version 5.
Visits the site again, clicks their cart (at which point version 5 replaces the visitor ID bcd with abc), and completes the purchase.

More Usage Details

See the docs for more detailed information about implementing beacons:

https://docs.groupbycloud.com/gb-docs/gb-implementation/beacons/overview

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Package last updated on 07 Sep 2023

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