@Override
    public boolean postVote(@NonNull final Geocache cache, final float rating) {
        return GCVote.setRating(cache, rating);
    }
Posts single request to update the vote only.

@param cache  cache to vote for
@param rating vote to set
@return status of the request
main/src/main/java/cgeo/geocaching/connector/gc/GCConnector.java