Python/Flask oAuth authorization example.

google-oauth.py

from flask import Flask, request, redirect
from rauth.service import OAuth2Service
import simplejson as json

google = OAuth2Service(
    name='google',
    consumer_key='478110803143-ct2e336q06knns6p7pgnob1msandulj3.apps.googleusercontent.com',
    consumer_secret='BGncEz1jPsNAMN7mzqki7zTy',
    access_token_url='https://accounts.google.com/o/oauth2/token',
    authorize_url='https://accounts.google.com/o/oauth2/auth'
)

port = 7000
ip = '0.0.0.0'
domain = 'localhost'

redirect_uri = 'http://%s:%s/' % (domain,port)

app = Flask(__name__)
app.debug = True

@app.route('/')
def index():
    code = request.args.get('code', None)
    if code is not None:
        print 'CODE: ', code
        response = google.get_access_token(
            'POST',
            data = {
                'code' : code,
                'redirect_uri' : redirect_uri,
            },
        )
        access_token = response.content['access_token']
        print 'ACCESS_TOKEN: ', access_token
        return json.dumps(response.content)
    return redirect('/login')
    #return 'Hello, world!'


@app.route('/login')
def login():
    authorize_url = google.get_authorize_url(
        scope = 'https://www.googleapis.com/auth/userinfo.email \
            https://www.googleapis.com/auth/userinfo.profile',
        access_type='offline',
        approval_prompt='force',
        redirect_uri=redirect_uri
    )
    print authorize_url
    return redirect(authorize_url)


if __name__ == '__main__':
    app.run(host=ip,port=port)