David Epely iamdey

Async VS Promise

the following is the code used for this lighting talk https://slides.com/allthedey/async-vs-promise

then nvm install v8 --lts

	// @flow
	import { createMessage as createMessageBase, requestMessage, addToCollection } from '../../../store/modules/message';
	import { tryCatchAxiosAction } from '../../../services/api-client';

	/* ::
	type Message = {
	message_id: string
	}
	*/

	import React, { Component } from 'react'
	import PropTypes from 'prop-types'
	// ...

	class Foo extends Component {
	createHandleSearchChange = (tags) => terms =>
	this.setState({ foundTags: whateverFindAlgo(tags, terms)})

	handleAddTag = (updateEntityTags, entity, tag) => {
	updateEntityTags(entity, [...entity.tags, tag])

	import { createSelector } from 'reselect';
	import { connect } from 'react-redux';
	import { currentTabSelector } from '../store/selectors/tab';

	const mapStateToProps = createSelector(
	[currentTabSelector],
	currentTab => ({
	currentTab,
	})
	);

	favoriteAddressFilter = (addresses, searchTerms) => addresses.reduce((acc, address) => {
	if (!acc) {
	return address;
	}

	if (address.startsWith(searchTerms) && !acc.startsWith(searchTerms)) {
	return address;
	}

	if (!acc.is_primary && address.is_primary === true) {

	#!/bin/bash

	set +e
	set -v

	docker-compose stop
	docker-compose rm
	docker volume rm devtools_db devtools_index devtools_store
	docker-compose up -d redis cassandra elasticsearch
	sleep 20

	// unit test of redux middleware w/ jest

	import configureStore from './configure-store';

	const middleware = store => next => (action) => {
	if (action.type === 'FOO') {
	Promise.resolve({ type: 'FOO_SUCCESS', payload: {} }).then(act => store.dispatch(act);
	}

	return next(action);