Client side: React:

Steps:

1. create .env file

  REACT_APP_BACKEND_URL= http://localhost:5000

2. Use the commands to start the app locally.

  cd google-login-react
  npm install
  npm start

Server side: Flask:

Steps:

1. create .env file

  DB_NAME=
  CLUSTER_URL=
  GOOGLE_CLIENT_ID=
  SECRET_KEY=
  ALGORITHM=
  PROJECT_ID=
  BACKEND_URL=http://127.0.0.1:5000
  FRONTEND_URL=http://localhost:3000

2. Go to https://console.cloud.google.com/ and create client secrets and configuration file
3. Save as client-secret.json
4. Use the commands to start the server locally.

  cd flask-server-google
  pip install virtualenv
  virtualenv google_env
  cd google_env/Scripts
  activate
  cd ..
  cd ..
  pip install -r requirements.txt
  python app.py