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783: How We Built a Netflix Style “Save for Offline” Feature Into Syntax

31 min • 17 juni 2024

Scott and Wes dive into the world of browser caching for audio files, exploring the File System API and the Cache API. They discuss size restrictions across different browsers, how tools like Riverside.fm leverage IndexedDB, and walk through code examples for creating, retrieving, and managing cached audio data.

Show Notes

00:00 Welcome to Syntax!
02:07 Brought to you by Sentry.io.
02:33 The file system API.
03:08 The Cache API.
- Mozilla Developer Cache API.
- Airhorner, a good example.
04:24 Size restrictions per browser.
07:04 How tools like Riverside.fm use IndexedDB.
08:47 Data eviction (too much data).
10:16 What we’re using it for and how.
12:17 How do we do this in code?
14:37 Creating the cache.
16:18 Retrieving from cache manually.
19:00 Adding metadata.
19:37 A live debugging.
22:39 Persistent storage.
- web.dev Persistent Storage.
- Hackernoon Persistent Storage.
26:10 Media score.
- Chrome Autoplay Policy.