Updating ethereum transaction state using redux-saga channels

ethereum-transaction-state-redux-saga-channel.js

import { channel } from 'redux-saga';

const transactionChannel = channel();

/* Init Dapp */
function* initDappAsync(action) {
  // ... 
  // fork to handle channel events
  yield fork(handleChannelEvents);
}

/*
 * Catch all events from the channel and create an action
 */
function* handleChannelEvents() {
  while (true) {
    const eventAction = yield take(transactionChannel);
    switch (eventAction.type) {
      // call action creator according to eventAction.type
      case COMMIT_ETH_SEND_SUCCESS:
        yield put(commitEthSendSuccess(eventAction.tx));
        break;
      case COMMIT_ETH_MINED_SUCCESS:
        yield put(commitEthMinedSuccess(eventAction.receipt));
        break;
      case COMMIT_ETH_ERROR:
        yield put(commitEthError(eventAction.error));
        break;
      default:
    }
  }
}