Need the following environment variables.
export APIKEY=
export AUTHDOMAIN=
export DATABASEURL=
export PROJECTID=
export STORAGEBUCKET=
export MESSAGINGSENDERID=
export APPID=recommendation: direnv/direnv
# install dependencies
$ yarn
# serve with hot reload at localhost:3000
$ yarn dev
# build for production and launch server
$ yarn build
$ yarn startThis application can also be launched with the normal Node.js application. However, by using Firebase Hosting and Firebase Functions, it can be used efficiently in a serverless environment.
$ yarn firebase init
firebase functions:config:set environment.apikey=""
firebase functions:config:set environment.authdomain=""
firebase functions:config:set environment.databaseurl=""
firebase functions:config:set environment.projectid=""
firebase functions:config:set environment.storagebucket=""
firebase functions:config:set environment.messagingsenderid=""
firebase functions:config:set environment.appid=""$ yarn deploy

