Run with docker compose:
$ docker-compose up -d
$ curl "localhost:8080/convert?amount=100&src_currency=GBP&dest_currency=USD&reference_date=2020-03-25"
$ curl "localhost:8080/convert?amount=200&src_currency=AUD&dest_currency=CAD"
Install dependencies then run with npm:
$ npm i
$ npm test
or yarn:
$ yarn
$ yarn test