from klein.app import KleinRequest, Klein
from klein.interfaces import IKleinRequest
from twisted.python.components import registerAdapter
from twisted.web.server import Request, Site


class CustomRequest(Request):
    def get_something_else(self):
        return 'I am something else'


class CustomApp(object):
    app = Klein()

    def __init__(self):
        """
        I am not sure this is the best way
        But I couldn't find any other way without code duplication
        """
        Site.requestFactory = CustomRequest
        registerAdapter(KleinRequest, CustomRequest, IKleinRequest)

    @app.route('/something_else', methods=['GET'])
    def something_else(self, request):
        """
        :param CustomRequest request:
        """
        return request.get_something_else()


if __name__ == '__main__':
    my_app = CustomApp()
    my_app.app.run(host='localhost', port=8000)