app.js

import React from 'react'
import { Provider } from 'react-redux'
import { AppRegistry } from 'react-native';

import App from './containers/App'
import {
  configureStore
} from './redux/configureStore'

const {store, actions} = configureStore();

class Container extends React.Component {
  render() {
    return (
      <Provider store={store}>
        <App actions={actions} />
      </Provider>
    )
  }
}

AppRegistry.registerComponent('MyApp', () => Container)

configureStore.js

// all the normal configureStore stuff (in this case, as a function)
import { applyMiddleware, combineReducers, createStore } from 'redux'
import { bindActionCreators } from 'redux'
import thunk from 'redux-thunk'

import Firestack from 'react-native-firestack'
import env from '../../config/environment'

import createEventsModule from './modules/events'

export const configureStore = (initialState = {}) => {
  const middleware = applyMiddleware(thunk);

  const firestack = new Firestack(env.firestack)
  const events = createEventsModule(firestack);

  const rootReducer = combineReducers({
    events: events.reducer,
    firestack: (state) => firestack
  });

  const store = createStore(
    rootReducer,
    initialState,
    middleware);

  firestack.setStore(store);

  const dispatch = store.dispatch;
  const actions = {
    events: bindActionCreators(events.actions, dispatch)
  }

  return {store,actions}
}

export default configureStore

events.js

// This is an example firestack redux module
import {createConstants, createReducer} from 'redux-module-builder'
import {FirestackModule} from 'react-native-firestack'

export const createModule = (firestack, options={}) => {

  const inst = new FirestackModule('events', {firestack});

  export const types = createConstants({
    prefix: 'events'
  })(
    inst.types,
    'LIST',
    'RECEIVED'
  );
  const initialState = inst.initialState;
  export const reducer = createReducer({
    [types.RECEIVED]: (state, {payload}) => {
      return {
        ...state,
        eventListing: payload
      }
    },
    ...inst.reducer
  });

  const actions = {
    export const actions = {
      ...inst.actions,
      init: () => (dispatch, getState) => {
        // init goes here   
      }
    }
  }

  return {initialState, actions, reducer, CONSTANTS}
}

export default createModule;

@auser
IMHO events.js without redux-module-builder could be more beginner friendly

Also I get this eslint error in events.js