Edge Functions on Netlify

Reference examples for learning about Edge Functions on Netlify.

Proxy requests to another source

You can use fetch() to make requests to other sources via an Edge Function.

import { Context } from "@netlify/edge-functions";

export default async (request: Request, context: Context) => {

  const joke = await fetch("https://icanhazdadjoke.com/", {
    "headers": {
      "Accept": "application/json"
  const jsonData = await joke.json();
  return Response.json(jsonData);

See this in action

Pro tip!

Curious about Response.json() in the code example above? Check out how you can return a JSON response using Edge Functions.

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!

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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