Use environment variables

Netlify Edge Functions support open-source Deno APIs. To access your Netlify environment variables in Edge Functions, use the Deno.env API.

import type { Context } from "https://edge.netlify.com";

export default async (request: Request, context: Context) => {
  const value = Deno.env.get("MY_IMPORTANT_VARIABLE");

  return new Response(`Value of MY_IMPORTANT_VARIABLE is "${value}".`, {
    headers: { "content-type": "text/html" },
  });
};

See this in action

View the response from the Edge Function
View the Deno.env API docs
The Edge Function code: environment.ts

Explore more examples

What are Edge Functions?

Using JavaScript and TypeScript, Netlify Edge Functions give you the power to modify network requests to localize content, serve relevant ads, authenticate visitors, A/B test content, and much more! And this all happens at the Edge — directly from the worldwide location closest to each user.

To use Edge Functions on Netlify, add JavaScript or TypeScript files to an edge-functions directory in your project, and add [[edge_functions]] entries to your netlify.toml file.

Learn more in the docs.

Deploy this site to Netlify

Try out Edge Functions on Netlify today! Click the button below to deploy this site with all of its demos to your Netlify account.