Stable version on master branch. Use dev branch for Pull Request or development.
Go to Firebase Console, copy firebase config and paste it at the snippet below
let config = {
apiKey: "<API-KEY>",
authDomain: "<AUTH-DOMAIN>",
databaseURL: "<DATABASE-URL>",
projectId: "<PROJECT-ID>",
storageBucket: "<STORAGE-BUCKET>",
messagingSenderId: "<MESSAGING-SENDER-ID>"
};