README.md

Transform responses with Netlify Edge Functions

You can use Edge Functions to transform the content of an HTTP response. In this example, we transform the response of a request to /hello with JavaScript's toUpperCase() function, using the query parameter ?method=transform.

Code example

Edge Functions are files held in the netlify/edge-functions directory.

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

export default async (request: Request, context: Context) => {
  const url = new URL(request.url);

  // Look for the query parameter, and return if we don't find it
  if (url.searchParams.get("method") !== "transform") {
    return;
  }

  console.log(`Transforming the response from this ${url}`);

  const response = await context.next();

  const text = await response.text();
  return new Response(text.toUpperCase(), response);
};

• Explore the code for this Edge Function

View this example on the web

• https://edge-functions-examples.netlify.app/example/transform

Deploy to Netlify

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