21 Online

21 Online is an online multiplayer Blackjack game. You can play it here.

Architecture

The game's frontend is made with Angular. The backend is made using Node.js and the Colyseus framework. The frontend is deployed on Github Pages. The backend is deployed on Fly.io.

Tests

The whole app is tested in multiple ways:

• e2e testing - Frontend and Backend are tested together using Cypress
• Frontend unit tests - Frontend components and logic are tested using Jasmine
• Backend unit tests - Backend logic is tested using Jest

Folder structure

.
├── src                     # Angular frontend
├── cypress                 # Cypress e2e tests
├── backend                 # Colyseus backend
│   ├── src                 # Backend sources
│   └── tests               # Backend Jest tests
│   └── ...
└── ...

Local development

$ npm start                         # starts frontend
$ npm test                          # runs frontend unit tests
$ npm run e2e                       # runs e2e tests
$ npm run deploy                    # deploys frontend to gh-pages
$ npm run backend-start             # starts backend
$ cd backend && npm test            # runs backend unit tests
$ cd backend && npm run deploy      # deploys backend to fly.io               
$ cd backend && npm run loadtest    # runs backend loadtests