I need to expose a poll to a mobile app. After doing some research I found out that I could receive the votes, through a web service, using the services_votingapi module, and the go-to poll to use was advpoll, or Advance Poll.
I've made a poll with several choices and added, in a services endpoint, the select_votes and set_votes services for votingapi. What I can't figure out now is how to send a vote using the service? there's some documentation at https://www.drupal.org/node/2145873 but I don't know the correct values to send. How do I know the correct entity ids, etc.?