Deno Deploy

Setup

vars gen config.vars --platform serverless

Deno has built-in Web Crypto, so the generated module runs without any polyfills.

Usage

import { getVars } from '#vars'

Deno.serve(async () => {
  const vars = await getVars(Deno.env.toObject())
  return new Response(`hello from ${vars.APP_NAME}`)
})

Secrets

Deno Deploy → Project → Settings → Environment Variables:

• VARS_KEY — the output of vars key export
• VARS_ENV — the env name, e.g. prod

No per-secret entries.

Local dev

{
  "scripts": {
    "dev": "vars run --env dev -- deno run --allow-net --allow-env main.ts"
  }
}

vars run sets VARS_KEY and VARS_ENV in process.env; Deno picks them up via Deno.env.toObject().