https://github.com/pj8912/flask-google-login

Login app using google OAuth in Flask
https://github.com/pj8912/flask-google-login

flask google-oauth2 login-system python3 sqlite3

Last synced: 9 months ago
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Login app using google OAuth in Flask

• Host: GitHub
• URL: https://github.com/pj8912/flask-google-login
• Owner: pj8912
• Created: 2023-06-20T10:58:58.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2024-01-11T13:21:18.000Z (over 2 years ago)
• Last Synced: 2024-11-12T12:13:08.330Z (over 1 year ago)
• Topics: flask, google-oauth2, login-system, python3, sqlite3
• Language: Python
• Homepage: https://github.com/pj8912/flask-google-login
• Size: 15.6 KB
• Stars: 3
• Watchers: 2
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

          
# flask-google-login

Register and Login with Google OAuth using Flask and SQLite

## Install requirements

```shell

pip install -r requirements.txt

```

---




> In google developer console create a project and 

credentials




---

## Setup `.env` variables

Create a `.env`add 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