Basic Facebook OAuth implementation for Flask

config.py

APP_ID = YOUR_APP_ID
REDIRECT_URI = 'http://localhost:5000/callback/facebook'
SCOPE = 'public_profile,email'
APP_SECRET = YOUR_APP_SECRET

views.py

@app.route('/authorize/facebook')
def fb_authorize():
    url = 'https://www.facebook.com/dialog/oauth?client_id={0}&redirect_uri={1}&scope={2}'.format(
    app.config['APP_ID'], app.config['REDIRECT_URI'], app.config['SCOPE'])
    return redirect(url)

@app.route('/callback/facebook')
def fb_callback():
    code = request.args.get('code')
    url = 'https://graph.facebook.com/v2.3/oauth/access_token?client_id={0}&redirect_uri={1}&client_secret={2}&code={3}'.format(
    app.config['APP_ID'], app.config['REDIRECT_URI'], app.config['APP_SECRET'], code)
    response = requests.get(url)

    session['access_token'] = response.json()['access_token']
    return str('Correcto')

@app.route('/fb/me/')
def fb_me():
    response_me = requests.get('https://graph.facebook.com/v2.5/me?fields=id,name,email',
    headers={'Authorization': 'OAuth {0}'.format(session['access_token'])})
    return str(response_me.json())