def login():

return oauth.authorize(callback=url_for('authorized', _external=True))

@app.route('/logout')

def logout():

session.clear()

return redirect('/')

@app.route('/authorized')

def authorized():

resp = oauth.authorized_response()

if resp is None or resp.get('access_token') is None:

return 'Access denied: reason=%s error=%s' % (

request.args['error_reason'],

request.args['error_description']

)

session['oauth_token'] = (resp['access_token'], '')

return 'Logged in!'

app = Flask(__name__)

@app.route('/api/library/books', methods=['GET'])

def get_books():

# 假设这是从图书馆系统获取数据的函数

books = fetch_books_from_library_system()

return jsonify(books)

def fetch_books_from_library_system():

# 这里是实际获取数据的逻辑

return [{'id': 1, 'title': 'Book Title'}, {'id': 2, 'title': 'Another Book'}]