Willow front-end implementation. Contains the source that generates client bundle and a couple of scripts to help serving it. The client itself is just a bundle of files; so, there is no command line interface implemented in the client as in the api. Therefore options are passed through environment variables when building or serving (parcel - dotenv).
FIREBASE_WEBAPP_CONFIGURATION: This variable must hold the contents of the firebase webapp configuration file. (do not confuse withGOOGLE_APPLICATION_CREDENTIALS, with has the path to the service account key file, not even used by the client)FIRESTORE_EMULATOR: Override theFIREBASE_WEBAPP_CONFIGURATIONoption that contains the firestore address. This allows the use of a local firestore emulator for testing purposes. If not used, this variable must be set to thefalsestring.