/flask-google-login

Login app using google OAuth in Flask

Primary LanguagePython

flask-google-login

Register and Login with Google OAuth using Flask and SQLite

Install requirements

pip install -r requirements.txt

In google developer console create a project and credentials


Setup .env variables

Create a .envadd these variables and their respective values :

  • APP_SECRET= YOUR CLIENT SECRET
  • CLIENT_ID= YOUR CLIENT ID

Download Client Secret

  • Download your client secret json file and rename it to client_secret.json and place it in the root folder of this app

Create SQLite database

  • Run
python created_db.py

to create your the sqlite databse users.sqlite3 which will store the users on registration automatically.

Add /callback URIs to Authorized URIs in google developer console

  • The app runs on http://localhost:3000

  • I use two different routes for login and registration

  • In you Authorized URIs section add these following two URIs

    • http://localhost:300/callback

    • http://localhost:3000/login/callback

    and click SAVE

Start

$ python app.py

Open :

http://localhost:3000

Working

  • Seperate flows for registration and login

  • On registration, the user's google username, password and the oauthId which is unique per user is stored in the database and redirected to home

  • On login, the process takes flow and checks the email that is used for login is already in the database and creates a session redirecting to home where you can see a welcome message and logout link, or it will simply redirect to home