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Summary

⚠️ This repo is based on a code challenge for a company. This is my solution to that challenge. The API was provided, sames as the product page.

The current project builds and exposes a Widget for calculating the instalments given a particular price. It also provides an API for i18n (basic) and sends tracking events.

The project stack is:

  • Building Stack:
    • ReactJs
    • Typescript
    • Vite
    • CSS Modules
  • Testing:
    • React Testing Library
    • Vitest

How to run the project locally

This project has a wrapping App that allows visualizing and playing around with the Widget component. However,when the project is built, only the Widget component is exported, wrapped in WebComponent.

npm install npm run dev

⚠️ It requires the API server to run. The entrypoint can be defined/changed in the settings.ts file, by default https://localhost:8000

How to test in the product-page.html

Build the project:

npm run build

Look for the dist/ folder created by Vite, and use that address to refer sdk.

Add in the productPage

ℹ️ The product-page.html file included in this zip has already a working integration of the widget. You can check that one or test with the local build explained below. Both require the API server to run locally at localhost:8000.

  1. Add the following snippet where you wish the widget to display. It will be replaced with the actual widget when loaded.

    <div id="custom-widget"></div>

  2. At the bottom of the page, paste the following snippet:

  • The src is pointing to the current path of the project that Vite will generate (locally).
  <script src="../seQura Instalments Widget/dist/instalments-sequra.umd.js defer></script>
  <script>
    document.addEventListener("DOMContentLoaded", function() {
      const metaLang = document.querySelector('meta[http-equiv="content-language"]');
      merchantLanguage = metaLang ? metaLang.content : 'default_language';

      const customWidget = document.querySelector("#custom-widget");
      const priceElement = document.querySelector("#product-price");


    // This observes for price changes to recalculate the instalments
      const observer = new MutationObserver(function() {
        const price = priceElement.textContent;
        customWidget.innerHTML = `<instalments-widget price=${price} language=${merchantLanguage}></instalments-widget>`;
      });
      observer.observe(priceElement, { childList: true });

      customWidget.innerHTML = `<instalments-widget price=${priceElement.textContent} language=${merchantLanguage}></instalments-widget>`;
    });
  </script>