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inro-shopify-script

v1.0.4

Published

An IIFE script that captures attribution and UTM parameters from the URL, persists them to `localStorage`, and forwards them as Shopify cart attributes so tracking data is available on the order at checkout.

Downloads

408

Vulnerabilities

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Links

Maintainers

pierredemillypierredemilly

Keywords

Readme

Shopify Script

An IIFE script that captures attribution and UTM parameters from the URL, persists them to localStorage, and forwards them as Shopify cart attributes so tracking data is available on the order at checkout.

How it works

  1. Reads tracking params from the URL — inro_id, username, utm_medium, utm_source, utm_campaign
  2. Loads any previously stored params from localStorage (key: tracking_params_v1)
  3. Merges — URL params win over stored ones when both are present
  4. Persists merged params back to localStorage (only when new URL params are found)
  5. POSTs to /cart/update.js with the params as cart attributes

Installation

Add to the <head> or <body> of your Shopify theme (e.g. theme.liquid):

<script src="https://d2cekbmr7xduo8.cloudfront.net/inro-shopify-script.min.js" defer></script>

Tracked parameters

| Parameter | Description | | -------------- | ----------------------------- | | inro_id | Inro user/referral identifier | | username | Inro username | | utm_medium | UTM medium | | utm_source | UTM source | | utm_campaign | UTM campaign |

Development

npm install
npm run dev    # start local dev server (opens docs/index.html)
npm run build  # build minified output to dist/

Known issues & limitations

  • No fetch response validation — /cart/update.js errors (e.g. 422, 403) are silently ignored; only network-level failures are caught.
  • No TTL on stored params — once written, params stay in localStorage indefinitely. A returning visitor with no URL params will still be attributed to their original campaign on every future visit.
  • Runs on every page load — as long as any params are stored or present in the URL, the script hits /cart/update.js on every page load. Consider using sessionStorage as a per-session dedup flag if cart update volume is a concern.
  • Falsy value filtering — values like "0" or "false" are filtered out by the truthiness check before sending to the cart.