On the Edge of My Server
summary
Edge functions replicate code across CDN nodes to cut latency and can intercept requests and responses for A/B testing and personalization; Cloudflare advertises zero-millisecond cold starts and ~218 global locations with an HTMLRewriter and KV store, AWS Lambda@Edge replicates to 13 regions with restrictions (no response-body access for origin-response triggers, no env vars) and slow redeploys, and Deno Deploy supports TypeScript/JSX but has a hard 100k/day limit. Example: LaunchDarkly flags sync to Cloudflare KV to inject latest flags at the edge, eliminating the flash of rendering.
AI-written summary · about
chapters (11)
- 0:00Introduction
- 1:46Speaker introduction
- 3:11What are edge functions
- 8:48How edge functions work
- 15:09Edge function use cases
- 21:27AWS Lambda at Edge
- 28:48Cloudflare Workers
- 39:03Deno Deploy and Supabase
- 44:01Other providers overview
- 48:14Databases at the edge
- 50:22Summary and Q&A
