Netlify Deployment, Regions & Data Residency 2026

[build]
  command = "next build"
  publish = ".next"

[build.environment]
  NODE_VERSION = "20"

[functions]
  directory = "netlify/functions"
  node_bundler = "esbuild"

# Pin a single function near its database (Pro/Enterprise only).
[functions."process-orders"]
  region = "dub"
  memory = "2gb"

[[edge_functions]]
  path = "/personalize/*"
  function = "personalize"

[[redirects]]
  from = "/api/*"
  to = "https://api.example.com/:splat"
  status = 200
  force = true

[[headers]]
  for = "/*"
  [headers.values]
    X-Frame-Options = "DENY"
    Content-Security-Policy = "frame-ancestors 'none'"

[context.deploy-preview]
  command = "next build"

# Install and authenticate
npm install -g netlify-cli
netlify login

# Link the local repo to a Netlify site (continuous deployment)
netlify init

# Build locally and deploy a draft for review
netlify build
netlify deploy --dir=.next --functions=netlify/functions

# Publish to the live production URL
netlify deploy --prod

# Function-scoped env var, production context only (kept out of source)
netlify env:set API_KEY s3cr3t --scope functions --context production

// netlify/functions/process-orders.mts  (Serverless Function)
import type { Config } from '@netlify/functions';

export default async (req: Request) => {
  // ...handler logic close to the EU database
  return new Response('ok');
};

// Run this one function in Dublin (overrides the site UI region).
export const config: Config = {
  path: '/api/orders',
  region: 'dub',
};

// netlify/edge-functions/personalize.ts  (Edge Function, Deno runtime)
import type { Config } from '@netlify/edge-functions';
export default async () => new Response('hi from the edge');
export const config: Config = { path: '/personalize/*', cache: 'manual' };