Periodic Background Sync

LT about periodic background sync at #remo_study

Transcript

1. Periodic Background Sync Periodic Background Sync
3. Background Sync self.on('sync', (e) => { // retry failed request while // offline in background })
4. Periodic Background Sync self.on('periodic-sync', (e) => { // periodically refresh contents // up to date in background. })
5. Use Case - Podcast Feed Update
6. // register PBS const name = 'periodic-background-sync' const status = await navigator.permissions.query({name}) if (status.state === 'granted') { await registration.periodicSync.register('refresh', { minInterval: 12 * 60 * 60 * 1000 // 12h }) }
7. Security Consideration
8. #4: 156.74.xxx.xxx #1: 14.102.xxx.xxx #2: 81.177.xxx.xxx #3: 24.152.xxx.xxx Background Sync Tracking also • crypto mining • bot net
9. Known Network
10. Permission In Chrome
11. Permission Model Permission Dialog ? User Gesture ? Feature Policy ? Add to Home Screen !!
12. Native App Permission -> Install Web App Permission -> Install
13. Restriction In Chrome
14. • Periodic depends on site-engagement. • Only fire under known network.
15. Site Engagement
16. Periodic Background Sync enables... • Installed App via A2HS • Enough Site-Engagement • Connected to Known Network • Android Chrome only
17. Work in progress...