code: def post(self, request):
          
          request.session['next'] = self.get_next(request)
          client = self.get_client()()
          request.session[self.get_client().get_session_key()] = client
          url = client.get_redirect_url(request=request)
          logger.debug("Redirecting to %s", url)
          try:
              return HttpResponseRedirect(url)
          except OAuthError, error:
              return self.error_to_response(request, {'error': error})
          except socket.timeout:
              return self.error_to_response(request, {'error': 
                  _('Could not connect to service (timed out)')})
docs: Create a client, store it in the user's session and redirect the user
          to the API provider to authorize our app and permissions.