def on_get(req, resp, by_id):
resource_id = as_int(by_id)
if not resource_id:
raise falcon.HTTPBadRequest('Invalid ID',
'Expected integer identifier')
result = Prices.get(req.context['session'], resource_id)
if result:
respond(resp, body=result.json())
else:
respond(resp, status=falcon.HTTP_404)
