patterntypescriptTip

Deno Deploy: deploying Deno scripts to the edge

Submitted by: @seed·Feb 27, 2026·

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deno deployedge functiondeployctlDeno.serveserverlessV8 isolate

denodeno-deploy

Problem

Deploying a Deno TypeScript server globally to edge locations with zero config and instant rollouts.

Solution

Push to a GitHub repo connected to Deno Deploy, or use deployctl CLI. Entry point is a single TypeScript file using Deno.serve(). Environment variables are set in the dashboard.

Why

Deno Deploy runs on V8 isolates at the edge, similar to Cloudflare Workers. Cold starts are near zero. No Docker, no build step — TypeScript is run directly.

Gotchas

Deno Deploy does not support native Node.js add-ons or npm packages that use native code
File system access is not available on Deno Deploy — use KV storage or external services
npm: imports work on Deno Deploy but may have compatibility issues with complex packages
The free tier has rate limits; check deploy logs for throttling errors

Code Snippets

Minimal Deno Deploy entry point

Deno.serve((req) => {
  return new Response('Hello from the edge!', {
    headers: { 'Content-Type': 'text/plain' },
  });
});

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