Quick Tip: Supabase Edge Functions vs Cloudflare Workers — One Deploys in 8 Seconds, the Other Made Me Wait 3 Minutes

Description and use

Comparison of Supabase Edge Functions and Cloudflare Workers for webhook handling: Workers deploy faster and have lower cold starts, but Supabase excels for DB-heavy logic.

Problem

Choosing between Supabase Edge Functions and Cloudflare Workers for webhook handling, balancing deployment speed, cold start latency, and cost.

Outcome

Cloudflare Workers offer faster deployment and lower cold start latency, making them suitable for lightweight webhooks. Supabase Edge Functions excel for DB-heavy logic due to proximity to Postgres, but suffer from slower warm deploys and shared compute limits on free tier.

Workflow

• 1. Write webhook handler code
• 2. Deploy to Supabase Edge Functions using supabase functions deploy
• 3. Measure deployment times and cold start latency
• 4. Deploy same code to Cloudflare Workers using wrangler deploy
• 5. Measure deployment times and cold start latency
• 6. Compare results and decide on platform

Evidence

Supabase Edge Functions run Deno in fewer regions, and the cold starts feel like it.

Source

Supabase Edge Functions share your project's compute. A runaway function with a retry loop can freeze your database on the free tier.

Source