jeffersonRibeiro/react-shopping-cart: a React TypeScript cart reference implementation

What react-shopping-cart actually is, and who it is for

This is a demo application, not a distributable cart library. The README calls it a "simple shopping cart prototype" and says it shows how React with Typescript, React hooks, react Context and Styled Components can build "a friendly user experience with instant visual updates and scaleable code in ecommerce applications." The package.json confirms the framing: the name is react-shopping-cart, the version is 0.1.0, and the private flag is set to true, which prevents an accidental publish to npm.

That matters because people searching for a React cart library will land here expecting an importable component. There is no published package to import. The value is the source tree: a working example of cart state held in React Context rather than in a state manager, with size filtering driven by the same context. If you are learning how Context and hooks fit together in a non-trivial UI, or you need a starting point for an internal prototype, the code is small enough to read end to end. If you need a cart that survives a page reload, talks to a payment provider, or handles tax, this repository does not attempt any of that.

How cart state and size filtering flow through React Context

The README lists two features, and both are attributed to the Context API: adding and removing products from the floating cart, and filtering products by available sizes. There is no Redux, MobX or Zustand dependency in package.json. The state layer is React's own context plus hooks, which is the whole point of the example.

The dependency list tells you the rest of the stack. React and React DOM are both at ^18.0.0, styled-components at ^5.3.3, axios at ^0.26.0 for data fetching, and TypeScript at ^4.6.3. The app is bootstrapped with react-scripts ^5.0.0, so the build pipeline is Create React App, not a custom webpack or Vite setup. Testing uses @testing-library/react ^13.0.0 with jest-dom and user-event, which means the tests exercise the UI the way a user would rather than reaching into component internals.

Product data is fetched over HTTP with axios rather than bundled as a static JSON import, which is why the app has a loading path at all. The README does not document the endpoint or the response shape, so if you plan to swap in your own catalogue you will need to read the source under src/ to find where the request is made and what fields the components expect. That is a real gap in the documentation, not a hidden feature.

Installing and running react-shopping-cart locally

The README's Build/Run section lists two requirements, Node.js and NPM, and gives three commands. The package.json engines field is stricter than the README: it pins node to 14.17.3. There is also an .nvmrc file at the repository root, so if you use nvm you can switch to the intended version before installing.

Install dependencies from the project root:

npm install

The README then gives the start command, which runs react-scripts start and serves the development build:

npm start

You should see the app open in a browser with a product grid and a floating cart. Adding a product updates the cart immediately, and the size filter narrows the grid; both behaviours are the Context-driven features the README describes. To run the test suite with the project's own script:

npm run test

That script is defined as react-scripts test --silent. The package.json also defines test:watch, test:coverage, lint, format, build and deploy. The deploy script is firebase deploy, and the repository contains firebase.json, .firebaserc and a .firebase/ directory, so the hosting target is Firebase. Running npm run deploy without editing .firebaserc will attempt to push to whatever project that file names, so check it before you run it.

The Node 14.17.3 pin is the first thing that will break

The engines field in package.json specifies node 14.17.3, and the .nvmrc file at the root points at the same generation. Node 14 reached end of life well before the last push on 2026-08-12, and react-scripts 5 with TypeScript 4.6 is a combination that predates several changes in the JavaScript tooling ecosystem. If you install with a current Node release you may hit resolution or build errors that have nothing to do with the cart logic itself.

The practical fix is to honour the pin rather than fight it. Use nvm or an equivalent version manager and read .nvmrc, install and run there, and only then consider upgrading the toolchain. Upgrading react-scripts is not a one-line change: it drags TypeScript, the Jest configuration and the browserslist targets with it.

There is a second limitation worth stating plainly. The README documents no persistence layer. Cart contents live in React state, so a reload empties the cart. There is no authentication, no checkout, no payment integration and no server-side cart. If your requirement list includes any of those, this repository is the wrong tool and you should look at a full commerce platform instead of adapting this prototype.

How it compares with a headless commerce backend

The obvious alternative is not another React cart component but a headless commerce platform such as Medusa or Saleor, where the cart is a server-side entity with an API, a database and a checkout flow. The difference in approach is architectural rather than cosmetic. Here, the cart is a client-side object in React Context and disappears when the tab closes. In a headless platform, the cart has an identifier, survives across devices for a logged-in user, and the frontend is a client of that API.

Choosing between them is a question of what you are building. If you are demonstrating Context and hooks, or you need a static prototype with no backend, the client-side approach in this repository is simpler and has fewer moving parts. If you are selling anything, the client-side cart is a dead end: you would end up rebuilding the server side anyway, and the Context patterns you copied would not carry over unchanged.

A narrower alternative is to keep the UI approach and swap the state layer. Because the cart lives in Context, replacing it with a store that persists to localStorage or syncs with a backend is a contained change, though the README does not document the shape of the context value, so you would be reading src/ to find the provider and its consumers before you start.

Licence, maintenance and what an upgrade would cost

The README states under Copyright and license that the project uses "The MIT License (MIT)" and points to a License File. The repository's top-level listing does not show a LICENSE file among the entries, only README.md, package.json, tsconfig.json and the rest of the application files. That discrepancy is worth resolving before you reuse the code in anything you ship, because the README assertion and the presence of an actual licence file are different things. This is a factual observation about the repository contents, not legal advice; if the licence matters to your organisation, confirm it with whoever owns the code.

On maintenance, the last push was on 2026-08-12, which is recent enough that the repository is not abandoned, and the Archived flag is not set. That said, there are no releases listed, and the version stays at 0.1.0, so there is no upgrade path in the usual sense. You do not upgrade this project; you fork it or copy from it.

The upgrade cost therefore falls on you. The pinned Node version, the react-scripts 5 build, and the TypeScript 4.6 compiler are all things you would need to move forward yourself. The jest block sets coverage thresholds at 64 percent branches and 90 percent for functions, lines and statements, which means any substantial refactor has to keep the test suite passing at that level or the thresholds will fail the run. That is a useful guardrail, but it also raises the cost of a toolchain migration.

Editorial conclusion

Use this repository when you want a compact, readable React TypeScript cart example to study Context and hook patterns or to seed an internal prototype, and be aware that the package.json pins Node 14.17.3 and that the README states the project is MIT licensed. Do not adopt it as a dependency, because package.json marks it private with version 0.1.0 and no releases are listed. Before copying anything into a real storefront, verify the licence file text against the README claim, check that the Firebase hosting configuration in firebase.json and .firebaserc points at your own project, and confirm the coverage thresholds in the jest block still match the test suite you keep.

Frequently asked questions

Official sources

1. Issues
2. jeffersonRibeiro/react-shopping-cart on GitHub
3. Project website
4. README