Considering Angular 2 for a large project? Do you need i18n support? Enhanced testing support? Oh and building for multiple platforms too? Web, native Mobile (Android/iOS), and even Desktop (Mac, Windows and Linux)?

This is an advanced seed project for Angular 2 apps based on Minko Gechev's angular-seed that expands on all of its great features to include core support for:

Integration with:

• ngrx/store RxJS powered state management, inspired by Redux
• ngrx/effects Side effect model for @ngrx/store
• ng2-translate for i18n
  • Usage is optional but on by default
  • Up to you and your team how you want to utilize it. It can be easily removed if not needed.
• angulartics2 Vendor-agnostic analytics for Angular2 applications.
  • Out of box support for Segment
    • When using the seed, be sure to change your write_key here
  • Can be changed to any vendor, learn more here
• lodash Helps reduce blocks of code down to single lines and enhances readability
• NativeScript cross platform mobile (w/ native UI) apps. Setup instructions here.
• Electron cross platform desktop apps (Mac, Windows and Linux). Setup instructions here.

The zen of multiple platforms. Chrome, Android and iPhone all running the same code.

Programming Nirvana. Mac and Windows desktop both running the same code.

Table of Contents

• Enhanced development workflow
• Enhanced testing support options
• Prerequisites
• Usage
• Special note about AoT
• NativeScript App
• Electron App
• Testing
• Framework How-Tos
• Web Configuration Options
• Change Detection OnPush Note
• General Best Practice Guide to Sharing Code
• Feature Branches
• Integration Guides
• How best to use for your project
• Contributing
• License

Enhanced development workflow

• Decorators for components which reduce boilerplate for common component setups
• Shared code can be found in frameworks:
  • app: your shared application architecture code
  • core: foundation layer (decorators and low-level services)
  • analytics: analytics provided by Segment
    • Only reports data in production build
  • i18n: internationalization features
  • electron: Electron specific code
  • sample: Just a sample module providing some components and services
  • test: test specific code providing conveniences to make testing your code easier and faster

Enhanced testing support options

• mocks for various services
• configurable provider blocks for easy test setup of common application providers
  • tired of setting up similar providers over and over again for different tests?
  • configure a reusable test provider which can be configured on a case-by-base basis
  • see example here
• helpers for end-to-end (e2e, integration) tests
• convenient shorthand to reduce test setup boilerplate and enhance speed of writing tests
  • are your test cases buried by multiple import lines requiring you to scroll just to get to the substance of the test?
  • removes noise allowing you to better focus on the substance of the test
  • provides full intellisense support
  • allows your team to add unique shorthands for various testing scenarios specific to your application needs
  • plays nice with tslint options like "no-unused-variable": true as the api hangs off a plain Object instead of globals
    • what's the value of that you ask? have you ever isolated a test with iit or ddescribe but didn't import those or vice versa, used iit leaving an unused it now in your tests? yeah, tslint will be all over you :/
    • avoids unused variable warnings altogether in tests since you are always using a valid key from the shorthand Object
  • see example here

Advice: If your project is intended to target a single platform (i.e, web only), then angular-seed is likely more than suitable for your needs. However if your project goals are to target multiple platforms (web, native mobile and native desktop), with powerful out of the box library support and highly configurable/flexible testing options, then you might want to keep reading.

Additionally, this seed is intended to push a couple boundaries so if you see dependencies that are bleeding edge, this is intentional.

Prerequisites

• node v5.x.x or higher and npm 3 or higher.

• To run the NativeScript app:

npm install -g nativescript
npm install -g typescript

Usage

git clone --depth 1 https://github.com/NathanWalker/angular-seed-advanced.git
cd angular-seed-advanced

# install the project's dependencies
npm install
# watches your files and uses livereload by default
npm start
# api document for the app
npm run serve.docs

# to start deving with livereload site and coverage as well as continuous testing
npm run start.deving

# dev build
npm run build.dev
# prod build
npm run build.prod
# prod build with AoT compilation
npm run build.prod.exp

Special Note About AoT

When using npm run build.prod.exp for AoT builds, please consider the following:

ng2-translate > 3 is needed. Right now, the seed uses 2.5.0 due to a couple issues that will be resolved soon.

Currently you cannot use custom component decorators with AoT compilation. Therefore usage of BaseComponent throughout this seed will not work. However this may change in the future but for now you can use this pattern for when you need to create AoT builds for the web:

import { Component } from '@angular/core';
import { BaseComponent } from '../frameworks/core/index';

// @BaseComponent({   // just comment this out and use Component from 'angular/core'
@Component({
  // etc.

BaseComponent custom component decorator does the auto templateUrl switching to use {N} views when running in the {N} app therefore you don't need it when creating AoT builds for the web. However just note that when going back to run your {N} app, you should comment back in the BaseComponent. Again this temporary inconvenience may be unnecessary in the future.

NativeScript App

Setup

npm install -g nativescript 

Dev Workflow

You can make changes to files in src/client or nativescript folders. A symbolic link exists between the web src/client and the nativescript folder so changes in either location are mirrored because they are the same directory inside.

Create .tns.html and .tns.css NativeScript view files for every web component view file you have. You will see an example of the app.component.html as a NativeScript view file here.

Run

iOS:                      npm run start.ios
iOS (livesync emulator):  npm run start.livesync.ios
iOS (livesync device):    npm run start.livesync.ios.device

// or...

Android:                      npm run start.android
Android (livesync emulator):  npm run start.livesync.android
Android (livesync device):    npm run start.livesync.android.device

• Requires an image setup via AVD Manager. Learn more here and here.

OR...

• GenyMotion Android Emulator

Building with Webpack for release builds

You can greatly reduce the final size of your NativeScript app by the following:

cd nativescript
npm i nativescript-dev-webpack --save-dev

Then you will need to modify your components to not use moduleId: module.id and change templateUrl to true relative app, for example:

before:

@BaseComponent({
  moduleId: module.id,
  selector: 'sd-home',
  templateUrl: 'home.component.html',
  styleUrls: ['home.component.css']
})

after:

@BaseComponent({
  // moduleId: module.id,
  selector: 'sd-home',
  templateUrl: './app/components/home/home.component.html',
  styleUrls: ['./app/components/home/home.component.css']
})

Then to build:

Ensure you are in the nativescript directory when running these commands.

• iOS: WEBPACK_OPTS="--display-error-details" tns build ios --bundle
• Android: WEBPACK_OPTS="--display-error-details" tns build android --bundle

Notice your final build will be drastically smaller. In some cases 120 MB -> ~28 MB. 👍

Electron App

Develop

Mac:      npm run start.desktop
Windows:  npm run start.desktop.windows

Develop with livesync

Mac:      npm run start.livesync.desktop
Windows:  npm run start.livesync.desktop.windows

Release: Package Electron App for Mac, Windows or Linux

Mac:      npm run build.desktop.mac
Windows:  npm run build.desktop.windows
Linux:    npm run build.desktop.linux

Testing

npm test

# Development. Your app will be watched by karma
# on each change all your specs will be executed.
npm run test.watch
# NB: The command above might fail with a "EMFILE: too many open files" error.
# Some OS have a small limit of opened file descriptors (256) by default
# and will result in the EMFILE error.
# You can raise the maximum of file descriptors by running the command below:
ulimit -n 10480


# code coverage (istanbul)
# auto-generated at the end of `npm test`
# view coverage report:
npm run serve.coverage

# e2e (aka. end-to-end, integration) - In three different shell windows
# Make sure you don't have a global instance of Protractor

# npm install webdriver-manager <- Install this first for e2e testing
# npm run webdriver-update <- You will need to run this the first time
npm run webdriver-start
npm run serve.e2e
npm run e2e

# e2e live mode - Protractor interactive mode
# Instead of last command above, you can use:
npm run e2e.live

You can learn more about Protractor Interactive Mode here

Web Configuration Options

Default application server configuration

var PORT             = 5555;
var LIVE_RELOAD_PORT = 4002;
var DOCS_PORT        = 4003;
var APP_BASE         = '/';

Configure at runtime

npm start -- --port 8080 --reload-port 4000 --base /my-app/

Framework How-Tos

i18n

• how to add a language?
  • src/client/assets/i18n/
    • add [language code].json (copy existing one and adapt the translation strings)
  • src/client/app/frameworks/sample/services/app-config.spec.ts
    • fix test
  • src/client/app/frameworks/sample/services/app-config.ts
    • add language to SUPPORTED_LANGUAGES
  • src/client/app/frameworks/i18n/components/lang-switcher.component.spec.ts
    • fix test

Change Detection OnPush Note

Please Note: The seed uses Angular's ChangeDetectionStrategy.OnPush by default which requires some understanding of immutability and one-way data flows. Please check out the following resources to learn more:

• http://blog.thoughtram.io/angular/2016/02/22/angular-2-change-detection-explained.html
• http://victorsavkin.com/post/110170125256/change-detection-in-angular-2
• http://www.syntaxsuccess.com/viewarticle/change-detection-in-angular-2.0
• http://ngcourse.rangle.io/handout/change-detection/change_detection_strategy_onpush.html

If you experience issues with changes not occuring in your views, you can disable this by commenting out these lines. The seed uses OnPush by default because it provides optimal performance and if you decide to turn it off while developing your application, you can always turn it back on when you're ready to refactor your data services to utilize OnPush properly.

General Best Practice Guide to Sharing Code

There’s actually only a few things to keep in mind when sharing code between web/mobile. The seed does take care of quite a few of those things but here’s a brief list:

• Don’t import {N} modules into your components/services. {N} modules can only be used inside the {N} app therefore cannot be shared. To get around this, use OpaqueTokens which is a fancy name for something quite simple. Learn more here. A great example of how to integrate 2 different plugins (1 for web, 1 for {N}) and share all the code exists in this wiki article: How to integrate Firebase across all platforms written by the awesome Scott Lowe.
• Use the conditional hooks provided by the seed in shared methods where you may need to handle something differently in {N} than you do on the web. For example, see here.
• Don’t use window global. Inject the WindowService provided by the seed instead. This includes usage of alert, confirm, etc. For example:

If you were thinking about doing: alert('Something happened!');, Don't. Instead inject WindowService:

constructor(private win: WindowService) {}

public userAction() {
  if (success) {
    // do stuff
  } else {
    this.win.alert('Something happened!');
  }
}

This ensures that when the same code is run in the {N} app, the native dialogs module will be used.

• Lastly, understand this video: http://www.nativescriptsnacks.com/videos/2016/06/13/zoned-callbacks.html … As far as dealing with {N} and 3rd party plugins, you want to understand that.

The advice I like to give is:

Code with web mentality first. Then provide the native capability using Angular’s {provide: SomeWebService, useClass: SomeNativeService } during bootstrap.

There are some cases where you may want to use useValue vs. useClass, and other times may need to use useFactory. Read the Angular docs here to learn more about which you may need for your use case.

Feature Branches

Several branches exist with certain features integrated:

• ui-router-ng2

How best to use for your project

Setup

NOTE: This should be done first before you start making any changes and building out your project. Not doing so will likely result in dificulty when trying to merge in upstream changes later.

1. Download a zip of the seed. (Do not fork)
2. npm run git.setup - This will initialize git as well as setup upstream properly.
3. git remote add origin ...your private repo...
4. npm run git.prepare - This will prepare git to handle the merge
5. npm run git.merge - This will fetch upstream and run the first merge (*Important)

• IMPORTANT: You will see a wall of Conflicts after doing above (a Conflict for every single file). This is normal. There actually will not be any problematic conflicts as it's just reporting every single file which both sides (upstream and your first commit) added.
• IMPORTANT: If you see unknown option --allow-unrelated-histories either upgrade git to 2.9+ or use npm run git.merge.legacy

6. git add .; git commit -m'ready'. Yes, you will be committing all those conflicts, which actually are not a problem in this 1 time case.
7. Now you have git setup and ready to develop your application as well as merge in upstream changes in the future.
8. npm install (and all other usage docs in this README apply)
9. Create a new framework for your application in src/client/app/frameworks to build your codebase out. Say your app is called AwesomeApp, then create awesomeapp and start building out all your components and services in there. Create other frameworks as you see fit to organize.
10. If you don't want an integration that comes out of box with this seed; for example. let's say you don't want to use i18n. Then just delete the i18n, remove ng2-translate as dependency root package.json and nativescript/package.json. Then remove any references to i18n throughout.

Merging latest upstream changes

1. npm run git.merge.preview - This will fetch upstream and show you how the merge would look

• If you see unknown option --allow-unrelated-histories either upgrade git to 2.9+ or use npm run git.merge.legacy.preview

2. npm run git.merge - This will actually do the merge

• If you see unknown option --allow-unrelated-histories either upgrade git to 2.9+ or use npm run git.merge.legacy

3. Handle any conflicts to get latest upstream into your application.
4. Continue building your app.

You can read more about syncing a fork here.

If you have any suggestions to this workflow, please post here.

Contributing

Please see the CONTRIBUTING file for guidelines.

Awesome Contributors

mgechev	ludohenin	NathanWalker	d3viant0ne	Shyam-Chen	tarlepp

Nightapes	TheDonDope	nareshbhatia	hank-ehly	kiuka	daniru

vyakymenko	jesperronn	njs50	sasikumardr	aboeglin	ivannugo

ryzy	m-abs	JakePartusch	gkalpak	jvitor83	pgrzeszczak

sfabriece	eppsilon	e-oz	natarajanmca11	jerryorta-dev	domfarolino

larsthorup	JayKan	LuxDie	robstoll	amedinavalencia	tsm91

juristr	JohnCashmore	ouq77	devanp92	evanplaice	hAWKdv

c-ice	markharding	markwhitfeld	ojacquemart	tiagomapmarques	TuiKiken

gotenxds	edud69	turbohappy	kbrandwijk	troyanskiy	robbatt

Bigous	ip512	Green-Cat	Yonet	divramod	daixtrose

taguan	bbarry	urmaul	yassirh	brendanbenson	brian428

briantopping	ckapilla	cadriel	dszymczuk	dmurat	peah90

dstockhammer	dwido	dcsw	totev	nosachamos	ericli1018

koodikindral	amaltsev	Falinor	hpinsley	NN77	jeffbcross

Jimmysh	Drane	johnjelinek	fourctv	JunusErgin	justindujardin

lihaibh	Brooooooklyn	tandu	inkidotcom	nulldev07	mjwwit

ocombe	gdi2290	typekpb	philipooo	pidupuis	redian

allenhwkim	alexweber	robertpenner	Sjiep	sclausen	heavymery

tjvantoll	tapas4java	gitter-badger	vincentpalita	Yalrafih	arnaudvalle

billsworld	blackheart01	butterfieldcons	danielcrisp	jgolla	karlhaas

omerfarukyilmaz	pbazurin-softheme	rossedfort	savcha	sebfag	ultrasonicsoft

sonicparke

License

MIT