The Hitchhikers Guide to PWAs

THE HITCHHIKERS GUIDE TO PROGRESSIVE WEB APPS Dave Letorey Matrix Evangelist

Web Apps or Native Apps

By DAVE LETOREY

Contents

Contents • The Web continues to win

Contents • The Web continues to win • What are PWAs

Contents • The Web continues to win • What are PWAs • Why PWAs

Contents • The Web continues to win • What are PWAs • Why PWAs • PWAs the Technology

Contents • The Web continues to win • What are PWAs • Why PWAs • PWAs the Technology • Still to come

Contents • The Web continues to win • What are PWAs • Why PWAs • PWAs the Technology • Still to come • PWA Examples

Check out the Summit App

Check out the Summit App http://example.com

The Web continues to win

The World Wide Web (www)

The World Wide Web (www) http://info.cern.ch/Proposal.html

The First Website

The First Website http://info.cern.ch/hypertext/WWW/TheProject.html

The First MultiOS Browser

The First MultiOS Browser https://twitter.com/jensimmons/status/1046752366018613248

CD ROMS (MS Encarta)

CSS & JavaScript

Flash Sites

Flash Sites https://www.youtube.com/watch?v=9Y-ESJS911c

HTML 5.0

Apple iPhone

Apple iPhone https://www.youtube.com/watch?v=MnrJzXM7a6o

Responsive Web Design

Responsive Web Design http://ami.responsivedesign.is/?url=https%3A%2F%2Falistapart.com%2Farticle%2Fresponsive-web-design

Progressive Web Apps

What are PWAs Progressive Web Apps

Progressive Web App

Progressive Web App https://fberriman.com/2017/06/26/naming-progressive-web-apps/

Progressive Web App

Responsive

Connectivity Independent

App-Like aka App-y

Fresh

Safe

Why PWAs

WWW is the Biggest Platform

WWW is the Biggest Platform https://www.slideshare.net/TheBlackFin/google-io-2017-full-recap

Not everyone has…

Data is a critical

Data is a critical https://medium.com/@anicollected/conquering-africa-the-story-of-transsion-maker-of-tecno-infinix-and-itel-phones-ea163008ee84

Memories are important

Every Step costs you 20%

Every Step costs you 20% https://medium.com/gabor/every-step-costs-you-20-of-users-b613a804c329

Almost no one uses an app

Almost no one uses an app http://appleinsider.com/articles/09/02/19/iphone_app_usage_declining_rapidly_after_first_downloads

Analytics

Features Native v PWA

PWAs the Technology

The Basics

The Basics https://matrix.squiz.co.uk/h2g2/index.html

The Basics

The Basics https://matrix.squiz.co.uk/h2g2/index.html

SVG

SVG https://caniuse.com/#feat=svg

SVG

SVG https://caniuse.com/#feat=svg

CSS

CSS https://caniuse.com/#search=css%20animation

Progressive Web Apps

Service Workers

Service Workers Return requests from Cache

Service Workers Return requests from Cache Fetch requests from the Network

Service Workers Return requests from Cache Fetch requests from the Network Cache requests for the future

Service Workers Return requests from Cache Fetch requests from the Network Cache requests for the future Check to see if there’s a connection

Service Workers Return requests from Cache Fetch requests from the Network Cache requests for the future Check to see if there’s a connection Set up promises if something is not ready

Service Worker Scope

Service Worker Scope https://example.com/js/sw.js

Service Worker Scope https://example.com/js/sw.js https://example.com/sw.js

Service Worker Scope https://example.com/js/sw.js https://example.com/sw.js https://example.com/myapp/sw.js

Registering a Service Worker

Registering a Service Worker

Service Worker support

Service Worker support https://caniuse.com/#search=service%20worker

Feature Detection

Feature Detection

Feature Detection

Feature Detection

Inside the Service Worker

Inside the Service Worker const version = 'v0.01';

Inside the Service Worker const version = 'v0.01'; const staticCacheName = 'staticfiles';

Inside the Service Worker const version = 'v0.01'; const staticCacheName = 'staticfiles'; addEventListener('install', installEvent !=> {

Inside the Service Worker const version = 'v0.01'; const staticCacheName = 'staticfiles'; addEventListener('install', installEvent !=> { installEvent.waitUntil(

Inside the Service Worker const version = 'v0.01'; const staticCacheName = 'staticfiles'; addEventListener('install', installEvent !=> { installEvent.waitUntil( caches.open(staticCacheName)

Inside the Service Worker const version = 'v0.01'; const staticCacheName = 'staticfiles'; addEventListener('install', installEvent !=> { installEvent.waitUntil( caches.open(staticCacheName) .then( staticCache !=> {

Inside the Service Worker const version = 'v0.01'; const staticCacheName = 'staticfiles'; addEventListener('install', installEvent !=> { installEvent.waitUntil( caches.open(staticCacheName) .then( staticCache !=> { return staticCache.addAll([ ‘https:!//example.com/css/style.css', ‘https:!//example.com/js/scripts.js', ‘https:!//example.com/images/banner.jpg'

Inside the Service Worker const version = 'v0.01'; const staticCacheName = 'staticfiles'; addEventListener('install', installEvent !=> { installEvent.waitUntil( caches.open(staticCacheName) .then( staticCache !=> { return staticCache.addAll([ ‘https:!//example.com/css/style.css', ‘https:!//example.com/js/scripts.js', ‘https:!//example.com/images/banner.jpg' ]); !// end return addAll }) !// end open then ); !// end waitUntil }); !// end addEventListener

Inside the Service Worker

Inside the Service Worker addEventListener('fetch', fetchEvent !=> { const request = fetchEvent.request; fetchEvent.respondWith( !// first look in the cache caches.match(request) .then ( responseFromCache !=> { if (responseFromCache) { return responseFromCache; } !// end if !// Otherwise fetch from the network return fetch(request); }) !// end match then ); !// end respondWith }); !// end addEventListener

Service Worker Cookbook

Service Worker Cookbook https://serviceworke.rs/

Offline using Service Worker

Offline using Service Worker https://matrix.squiz.co.uk/h2g2/index.html

Offline using Service Worker

Offline using Service Worker https://matrix.squiz.co.uk/h2g2/index.html

Offline using Service Worker

Offline using Service Worker https://matrix.squiz.co.uk/h2g2/index.html

PWA Size

PWA Size https://matrix.squiz.co.uk/h2g2/index.html

Web App Manifest

Manifest support

Manifest support https://caniuse.com/#search=web%20app%20manifest

Registering a Manifest

Manifest https://developers.google.com/web/fundamentals/web-app-manifest/

Manifest { "lang": "en", https://developers.google.com/web/fundamentals/web-app-manifest/

Manifest { "lang": "en", "name": "The Hitch Hikers Guide to PWAs", https://developers.google.com/web/fundamentals/web-app-manifest/

Manifest { "lang": "en", "name": "The Hitch Hikers Guide to PWAs", "short_name": "H2G2 PWAs", https://developers.google.com/web/fundamentals/web-app-manifest/

Manifest { "lang": "en", "name": "The Hitch Hikers Guide to PWAs", "short_name": "H2G2 PWAs", "description": "This ia a PWA about PWAs that supports Dave's Squiz Summit Talk", https://developers.google.com/web/fundamentals/web-app-manifest/

Manifest { "lang": "en", "name": "The Hitch Hikers Guide to PWAs", "short_name": "H2G2 PWAs", "description": "This ia a PWA about PWAs that supports Dave's Squiz Summit Talk", "theme_color": "#222222", https://developers.google.com/web/fundamentals/web-app-manifest/

Manifest { "lang": "en", "name": "The Hitch Hikers Guide to PWAs", "short_name": "H2G2 PWAs", "description": "This ia a PWA about PWAs that supports Dave's Squiz Summit Talk", "theme_color": "#222222", "background_color": "#222222", https://developers.google.com/web/fundamentals/web-app-manifest/

Manifest { "lang": "en", "name": "The Hitch Hikers Guide to PWAs", "short_name": "H2G2 PWAs", "description": "This ia a PWA about PWAs that supports Dave's Squiz Summit Talk", "theme_color": "#222222", "background_color": "#222222", "start_url": “/h2g2/index.html”, https://developers.google.com/web/fundamentals/web-app-manifest/

Manifest { "lang": "en", "name": "The Hitch Hikers Guide to PWAs", "short_name": "H2G2 PWAs", "description": "This ia a PWA about PWAs that supports Dave's Squiz Summit Talk", "theme_color": "#222222", "background_color": "#222222", "start_url": “/h2g2/index.html”, "display": "standalone", https://developers.google.com/web/fundamentals/web-app-manifest/

Manifest { } "lang": "en", "name": "The Hitch Hikers Guide to PWAs", "short_name": "H2G2 PWAs", "description": "This ia a PWA about PWAs that supports Dave's Squiz Summit Talk", "theme_color": "#222222", "background_color": "#222222", "start_url": “/h2g2/index.html”, "display": "standalone", "icons": [ { "src": "/images/small-icon.png", "sizes": "48x48", "type": "image/png" }, { "src": "/images/large-icon.png", "sizes": "512x512", "type": "image/png" } ] https://developers.google.com/web/fundamentals/web-app-manifest/

Display

“display”: ”browser” Display

“display”: “standalone” “display”: ”browser” Display

“display”: “fullscreen” “display”: “standalone” “display”: ”browser” Display

Splash Screen

Splash Screen https://matrix.squiz.co.uk/h2g2/index.html

PWA Tools

PWA Tools https://developers.google.com/web/tools/lighthouse/

PWA Tools

PWA Tools https://developers.google.com/web/tools/lighthouse/

PWAs Still to come

Badging

Badging https://twitter.com/kennethrohde/status/1046889939198197760

Phone Authentication

Phone Authentication https://www.w3.org/2018/04/pressrelease-webauthn-fido2.html.en

PWA Examples

Finacial Times

Finacial Times https://app.ft.com

Pintrest

Pintrest https://medium.com/@Pinterest_Engineering/a-one-year-pwa-retrospective-f4a2f4129e05

Pintrest Effect of launching a PWA https://medium.com/@Pinterest_Engineering/a-one-year-pwa-retrospective-f4a2f4129e05

Pintrest Effect of launching a PWA •Weekly active users on mobile web have increased 103% year-over-year overall https://medium.com/@Pinterest_Engineering/a-one-year-pwa-retrospective-f4a2f4129e05

Pintrest Effect of launching a PWA •Weekly active users on mobile web have increased 103% year-over-year overall •156% increase in Brazil https://medium.com/@Pinterest_Engineering/a-one-year-pwa-retrospective-f4a2f4129e05

Pintrest Effect of launching a PWA •Weekly active users on mobile web have increased 103% year-over-year overall •156% increase in Brazil •312% increase in India https://medium.com/@Pinterest_Engineering/a-one-year-pwa-retrospective-f4a2f4129e05

Pintrest Effect of launching a PWA •Weekly active users on mobile web have increased 103% year-over-year overall •156% increase in Brazil •312% increase in India •296% increase in session length https://medium.com/@Pinterest_Engineering/a-one-year-pwa-retrospective-f4a2f4129e05

Pintrest Effect of launching a PWA •Weekly active users on mobile web have increased 103% year-over-year overall •156% increase in Brazil •312% increase in India •296% increase in session length •401% increase in Pins seen https://medium.com/@Pinterest_Engineering/a-one-year-pwa-retrospective-f4a2f4129e05

Pintrest Effect of launching a PWA •Weekly active users on mobile web have increased 103% year-over-year overall •156% increase in Brazil •312% increase in India •296% increase in session length •401% increase in Pins seen •295% of users more likely to save a pin https://medium.com/@Pinterest_Engineering/a-one-year-pwa-retrospective-f4a2f4129e05

Pintrest Effect of launching a PWA •Weekly active users on mobile web have increased 103% year-over-year overall •156% increase in Brazil •312% increase in India •296% increase in session length •401% increase in Pins seen •295% of users more likely to save a pin •370% increase in logins https://medium.com/@Pinterest_Engineering/a-one-year-pwa-retrospective-f4a2f4129e05

Pintrest Effect of launching a PWA •Weekly active users on mobile web have increased 103% year-over-year overall •156% increase in Brazil •312% increase in India •296% increase in session length •401% increase in Pins seen •295% of users more likely to save a pin •370% increase in logins •843% increase in signups https://medium.com/@Pinterest_Engineering/a-one-year-pwa-retrospective-f4a2f4129e05

Pintrest Effect of launching a PWA •Weekly active users on mobile web have increased 103% year-over-year overall •156% increase in Brazil •312% increase in India •296% increase in session length •401% increase in Pins seen •295% of users more likely to save a pin •370% increase in logins •843% increase in signups •In 6 month 800k weekly users using our PWA like a native app (from their homescreen) https://medium.com/@Pinterest_Engineering/a-one-year-pwa-retrospective-f4a2f4129e05

Uber

Uber https://eng.uber.com/m-uber/

What we’ve covered

What we’ve covered • The Web continues to win

What we’ve covered • The Web continues to win • What are PWAs

What we’ve covered • The Web continues to win • What are PWAs • Why PWAs

What we’ve covered • The Web continues to win • What are PWAs • Why PWAs • PWAs the Technology

What we’ve covered • The Web continues to win • What are PWAs • Why PWAs • PWAs the Technology • Still to come

What we’ve covered • The Web continues to win • What are PWAs • Why PWAs • PWAs the Technology • Still to come • PWA Examples

Check out the Summit App

Check out the Summit App http://example.com

THE HITCHHIKERS GUIDE TO PROGRESSIVE WEB APPS Dave Letorey Matrix Evangelist