FastAPI – Google OAuth + Drive

FastAPI is a modern, fast (high-performance web framework for building APIs with Python 3.7+ (including 3.8 and 3.9) based on standard Python type hints. It also includes Google OAuth and Drive integration, allowing you to easily authenticate and access Google Drive resources in your FastAPI applications.

Google OAuth Integration

Google OAuth allows users to securely authenticate and authorize access to their Google accounts and resources. FastAPI provides built-in integration for Google OAuth, making it easy to authenticate users and access their Google Drive resources within your application.

Google Drive API Integration

With FastAPI, you can easily integrate Google Drive API to access and manage files and folders in Google Drive. This allows you to create, read, update, and delete files and folders in a user’s Drive account using the power of FastAPI.

Example Code

    
from fastapi import FastAPI, Depends
from fastapi.security import OAuth2PasswordBearer
from fastapi.responses import RedirectResponse
from authlib.integrations.starlette_client import OAuth
from starlette.config import Config
from starlette.middleware.sessions import SessionMiddleware
from starlette.requests import Request
from starlette.responses import JSONResponse
import os

config = Config('.env')
oauth = OAuth(config)
oauth.register(
    name='google',
    client_id=os.getenv('GOOGLE_CLIENT_ID'),
    client_secret=os.getenv('GOOGLE_CLIENT_SECRET'),
    authorize_url='https://accounts.google.com/o/oauth2/auth',
    authorize_params=None,
    access_token_url='https://accounts.google.com/o/oauth2/token',
    access_token_params=None,
    refresh_token_url=None,
    refresh_token_params=None,
    scope=['openid', 'email', 'profile']
)

app = FastAPI()
app.add_middleware(SessionMiddleware, secret_key='!secret')
oauth2_scheme = OAuth2PasswordBearer(tokenUrl='token')

@app.route('/')
async def homepage(request: Request):
    return JSONResponse({'Hello': 'World'})

@app.route('/login')
async def login(request: Request):
    redirect_uri = url_for('auth', _external=True)
    return await oauth.google.authorize_redirect(request, redirect_uri)

@app.route('/auth')
async def auth(request: Request):
    token = await oauth.google.authorize_access_token(request)
    user = await oauth.google.parse_id_token(request, token)
    return JSONResponse({'access_token': token['access_token'], 'user': user})

@app.route('/drive')
async def drive(request: Request, token: str = Depends(oauth2_scheme)):
    return JSONResponse({'access_token': token})
    
    

Conclusion

FastAPI provides a powerful and seamless integration with Google OAuth and Drive, allowing you to easily authenticate users and access their Drive resources in your applications. With the example code provided, you can quickly get started with building robust and secure applications that leverage the capabilities of Google’s authentication and file management systems.