CI

• Node.js 22.17.1 (LTS)
• yarn 1.22
• Docker (optional)

What's in the box?

• Express
• TypeScript
• Jest (unit tests via ts-jest)

All dependencies are defined in package.json and are managed with yarn. To initially install all dependencies and when the list dependency has changed, run yarn.

$ yarn

Start the server with hot reloading (ts-node + nodemon) listening on port 3001.

$ yarn dev

To use a different api set the NDLA_API_URL environment variable.

Test framework: Jest (ts-jest). Snapshot/unit tests in TypeScript.

$ yarn test

Do you tdd?

$ yarn tdd

# Run with NODE_ENV=production:
$ npm run start-prod

# Docker stuff
$ ./build.sh

Development now uses TypeScript. Source lives in src/ and is compiled to dist/ for production.

Install:

yarn

Development (watch + ts-node):

yarn dev

Build (emit JS to dist):

yarn build

Production run (after build):

yarn start-prod

Run tests:

yarn test

Watch tests (TDD):

yarn tdd

Lint:

yarn lint

Key (default):

• API_DOCUMENTATION_PORT (3000) Port to listen on in production build.
• NDLA_API_URL (http://api-gateway.ndla-local:8001) Base URL for Kong gateway.
• WHITELIST (comma separated list) Override the default public API whitelist.
• API_DOC_PATH_REGEX (api-docs) Regex used to detect swagger/openapi doc routes.
• AUTH0_PERSONAL_CLIENT_ID (empty) Optional OAuth client id for Swagger UI auth.

Core runtime deps:

• express, compression, cors, swagger-ui-dist, lodash

Dev/tooling:

• typescript, ts-node, ts-jest, @types/* packages, nodemon, eslint + config.

(Use npm ls --depth 0 or yarn list --depth=0 for a current authoritative list.)

• Performs a TypeScript build in a build stage.
• Copies compiled dist/ plus static assets into a slim runtime stage.
• Runs as non-root node user.
• Exposes port 3000 and defines a HEALTHCHECK on /health.

Build locally:

./build.sh

ESLint (with TypeScript rules) enforces code style. Configuration lives in .eslintrc.js. Use yarn lint (and optionally --fix).