$ npm install
# copy variables names then edit values
$ cp .env.example .env
# development
$ npm run start
# watch mode
$ npm run start:dev
# production mode
$ npm run start:prod
# unit tests
$ npm run test
# test coverage
$ npm run test:cov
$ npm install
# copy variables names then edit values
$ cp .env.example .env
# development
$ npm run start
# watch mode
$ npm run start:dev
# production mode
$ npm run start:prod
# unit tests
$ npm run test
# test coverage
$ npm run test:cov