Callback

Polls.js

// onChange listener to trigger enigma task when poll has ended
async handleTimerEnd(pollID) {
  const { polls } = this.state;
  await this.enigmaTask(pollID);
  const pollStatusUpdateEvent = this.props.voting.PollStatusUpdate();
  pollStatusUpdateEvent.watch(async (error, result) => {
    let pollStatus = await this.props.voting.getPollStatus.call(pollID, {
      from: this.props.enigmaSetup.accounts[this.props.curAccount],
      gas: GAS
    });

    polls[pollID].status = pollStatus;
    this.setState({ polls });
  });
}