To test this in a development environment, you should create a .env
file for dotenv. This might
look as follows for development.
PORT=4000
API_BASE=http://localhost:4000/
NODE_ENV=development
MONGODB_DATABASE=rossrpg
MONGODB_PASS=thepassword
MONGODB_USER=theuser
MONGODB_HOST=localhost
MONGODB_PORT=27017
In production, the backend is built via a nix expression called default.nix which uses the pinned packages in yarn.nix; this relies on running yarn2nix, specifically
yarn2nix > yarn.nix
to capture the contents of yarn.lock in a format suitable for Nix.