PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Christian Liebel @christianliebel Consultant 

Hello, it’s me. Christian Liebel Follow me: @christianliebel Email: christian.liebel @thinktecture.com Cross-Platform Development & Serverless Cloud Architectures Modern Web APIs for even better Progressive Web Apps PWA Update 2019 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Responsive Linkable Discoverable Installable App-like Connectivity Independent Fresh Safe Re-engageable Progressive 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebXR WebAuthn Payment Request API Badging API Wake Lock API Shape Detection API Async Clipboard API Native File System API 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebXR WebAuthn Payment Request API Badging API Wake Lock API Shape Detection API Async Clipboard API Native File System API 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Reality–Virtuality Continuum (Milgram et al. 1994) Reality Virtuality Augmented Reality Augmented Virtuality.. HoloLens HTC Vive Mixed Reality ARKit Cardboard 

API if ('xr' in navigator) { const supported = await navigator.xr.isSessionSupported('immersive-vr'); if (supported) { const session = navigator.xr.requestSession('immersive-vr'); const canvas = document.createElement('canvas'); const gl = canvas.getContext('webgl', { xrCompatible: true }); session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) }); const refSpace = await session.requestReferenceSpace('local'); session.requestAnimationFrame(onXRFrame); } } PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebXR 

https://liebel.io/webxr PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebXR DEMO Cardboard Asset: Apache 2.0, © Google 2017, https://github.com/immersive-web/webxr-polyfill/blob/master/build/webxr-polyfill.js#L4291 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebXR WebAuthn Payment Request API Badging API Wake Lock API Shape Detection API Async Clipboard API Native File System API 

Motivation - Cooperation with FIDO alliance - W3C Recommendation (official standard) - Alternative, passwordless authentication method - Authentication via internal authenticator (e.g. Touch ID, Win Hello) - Ideally backed by internal hardware module (TPM) - Scoped per origin - Eliminates password theft, phishing and replay attacks - User-friendly PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebAuthn 

API if ('PublicKeyCredential' in window) { const credential = await navigator.credentials.create({ publicKey }); // OR const credential = await navigator.credentials.get({ publicKey }); } PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebAuthn 

https://webauthn.io PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebAuthn DEMO 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebXR WebAuthn Payment Request API Badging API Wake Lock API Shape Detection API Async Clipboard API Native File System API 

Traditional checkout forms are… PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Payment Request API repetitive tedious (sometimes) not touch-friendly 

API if ('PaymentRequest' in window) { const request = new PaymentRequest(methodData, details, options); // Configure request } PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Payment Request API 

UI PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Payment Request API 

https://pwapraxis.liebel.io PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Payment Request API DEMO 

Next Steps Payment Request Handler API is in the works Goal: Progressive Web Apps can register as a payment handler Extension point for third-party payment service providers PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Payment Request API 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebXR WebAuthn Payment Request API Badging API Wake Lock API Shape Detection API Async Clipboard API Native File System API 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps 

Cross-Vendor Initiative Led By… PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Project Fugu – A More Capable Web »Let’s bring the web back – API by API« Thomas Steiner, Google 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Project Fugu https://goo.gle/fugu-api-tracker 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Project Fugu navigator.share({ url: 'http://example.com' }); ShareIntent DataTransferManager … NSSharingServicePicker 

Motivation - Communicate updates without distracting the user (in constrast to push notifications) - Typically displays a badge on the home screen, task bar or dock - Appearance varies from platform to platform PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Badging API 

API Set the badge navigator.setAppBadge(5); Clear the badge navigator.clearAppBadge(); PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Badging API 

Demo • Install (link: http://Airhorner.com) Airhorner.com (Windows / macOS, not Android). • Paste this code in the @ChromeDevTools console: ``` let c = 0; const h = document.querySelector('.horn'); h.addEventListener('click', _ => { navigator.setExperimentalAppBadge(++c); }); ``` • Honk. • T̶h̶a̶n̶k̶ Hate me. PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Badging API 9 DEMO https://twitter.com/tomayac/status/1114131251181555714 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebXR WebAuthn Payment Request API Badging API Wake Lock API Shape Detection API Async Clipboard API Native File System API 

Motivation - Devices can go to sleep in order to reduce energy consumption - Different types of sleep: - Turn off the display (screen sleep) - Turn off the CPU (system sleep) - However, this can get bothersome in some situations (e.g. while watching a movie etc.) - The Wake Lock API prevents the device from going to sleep for a given period of time PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Wake Lock API 

API let wakeLock = null; if ('wakeLock' in navigator) { try { wakeLock = await navigator.wakeLock.request('screen'); console.log('Wake lock active'); } catch (err) { console.error(`${err.name}, ${err.message}`); } } PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Wake Lock API 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebXR WebAuthn Payment Request API Badging API Wake Lock API Shape Detection API Async Clipboard API Native File System API 

Faces Barcodes Text Use Cases PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Shape Detection API 

Face Detection API if ('FaceDetector' in window) { const img = document.querySelector('img'); const faceDetector = new FaceDetector(); const faces = await faceDetector.detect(img) faces.forEach(face => { console.log('Face found!', face.boundingBox); }); } PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Shape Detection API 

https://liebel.io/facedet PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Shape Detection API DEMO 

Related: WebML Machine Learning for the Web (WebML) Goal: Low-level Web API for machine learning (Web Neural Network API) Microsoft, Google, Apple, Mozilla on board PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Shape Detection API 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebXR WebAuthn Payment Request API Badging API Wake Lock API Shape Detection API Async Clipboard API Native File System API 

API Copy Content await navigator.clipboard.writeText('foo'); await navigator.clipboard.write(/* data */); Paste Content const content = await navigator.clipboard.readText(); const content = await navigator.clipboard.read(); PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Async Clipboard API 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps WebXR WebAuthn Payment Request API Badging API Wake Lock API Shape Detection API Async Clipboard API Native File System API 

Motivation - Currently, websites only have very limited access to the file system - Some applications heavily rely on working with files (e.g. Visual Studio Code) - Wouldn’t it be great if your web application could open files or folders from the native file system? PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Native File System API 

API (may change!) if ('chooseFileSystemEntries' in window) { const handle = await window.chooseFileSystemEntries(); const file = await handle.getFile(); // do something with the file } else { // use fallback API or disable feature in app } PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Native File System API 

API (may change!) const handle = await self.chooseFileSystemEntries({ type: 'openFile', multiple: false, readOnly: false, accepts: [{ description: 'Images', extensions: ['jpg', 'gif', 'png'] }] }); PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Native File System API 

https://liebel.io/paint DEMO PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Async Clipboard & NativeFS 

PWA Update 2019 Modern Web APIs for even better Progressive Web Apps Where’s the Web Heading to? 

- Web is getting more and more capable - The Web is establishing itself as an application platform - But: Web is threatened by alternative approaches and platforms, support for modern Web API varies from platform to platform - You can make a difference! - File bugs in browser engine bugtrackers - File Fugu requests: http://bit.ly/new-fugu-request PWA Update 2019 Modern Web APIs for even better Progressive Web Apps What’s in for Progressive Web Apps? 

Thank you for your kind attention! Christian Liebel @christianliebel [email protected]