Marvel Heroes

http://marvelheroes.s3-website.eu-west-3.amazonaws.com/ ^[1]

Very simple React app that displays the Marvel characters thanks to https://developer.marvel.com/

• 2 pages: list of heroes + details of a hero
• Implementation is 400 LOC (+ 700 LOC of tests)
• Unit/integration tests written in react-testing-library & Jest
• E2E tests written in Playwright
• W3C validator completed

I use this app as a boilerplate and to demo some JS web app best practices.

1. No HTTPS, no gzip, no cache…

List of heroes: HeroesPagination/Heroes component screenshot

Details of a hero: Hero component screenshot

How to run

npm run start:stubs
open http://localhost:8080

npm run start:marvel.com
open http://localhost:8080

Libraries used

• React with hooks
• No Redux, just useState()
• TypeScript with strict: true
• Babel with @babel/preset-typescript
• Jest + react-testing-library + Playwright => 100% code coverage
• Fetch API
• React Router
• Prettier + ESLint + stylelint
• Bootstrap 5 + Purgecss
• Google Lighthouse