0. Install dependency by running npm install in both project root directory and /ui-server.

1. Navigate to project root directory, and run npm run dev. This will starts the API and UI dist proxy server on port 8080.

2. Navigate to /ui-server directory, and run npm start. This will starts the UI server on port 4200.

3. Open localhost:4200 on broswer and start dev on it.

1. Navigate to /ui-server directory, and run ng build. This will build lastest UI server output to /ui-server/dist

2. Navigate to project root diectory, and run gcloud app deploy.

https://medium.com/bb-tutorials-and-thoughts/how-to-develop-and-build-angular-app-with-nodejs-e24c40444421