Edge Functions on Netlify

Reference examples for learning about Edge Functions on Netlify.

Hello, world!

You can use Edge Functions to return a plain HTTP text/html response. In this example, we return the string "Hello, World!" as text/html.

export default async (request) => {
  return new Response("Hello, World!", {
    headers: { "content-type": "text/html" },

See this in action

Pro tip!

Need to return JSON data from an Edge Function? Check out the JSON response method on the Context object!

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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!

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 a /netlify/edge-functions directory in your project.

Learn more in the docs.

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