Cordova with VueJS

Vue Project setup

npm install

Compiles and hot-reloads for development

npm run serve

Compiles and minifies for production

npm run build

Cordova Project

npm run build - in vuejs project prod build placed in cordova_app/ folder

Create new android project in firebase
download google-services.json 
Place it in cordova_app/

Cordova Firebasex Plugin

See cordova-plugin-firebasex Reference.

cordova plugin add cordova-plugin-firebasex

cd cordova_app
cordova build android
cordova run android -device