As part of our filing for Chapter 11 bankruptcy relief, Akamai has acquired select assets from Edgio, including certain customer contracts from our content delivery, applications, and security businesses, but not including Uplynk. We encourage any active Edgio delivery, applications, or security customers that are not already engaged with Akamai to migrate their services, to contact their local Akamai office or support@edg.io as soon as possible to help avoid service interruptions. Service will end on January 15, 2025.


Any Edgio Uplynk customers can reach out to support@uplynk.com for any questions or concerns.

Edgio
Edgio Console

JSON Responses

Edge functions can be used to generate JSON responses for a request. This can be useful for generating dynamic content, such as a list of products or a user profile.

Basic JSON Response

A basic JSON response can be generated by serializing a JavaScript object to a JSON string and returning it as the response body.

Router Configuration

JavaScriptroutes.js
1import {Router, edgioRoutes} from '@edgio/core';
2

3export default new Router()
4  .use(edgioRoutes)
5

6  .match('/some/path', {
7    edge_function: './edge-functions/main.js',
8  });

Edge Function

JavaScriptedge-functions/main.js
1export async function handleHttpRequest(request, context) {
2  const data = {
3    message: 'Salutations from Edgio Functions!',
4    description: 'This is a sample JSON response.',
5    awesome: true,
6    powerLevel: 9001,
7  };
8

9  const content = JSON.stringify(data);
10

11  const response = new Response(content, {
12    headers: {
13      'content-type': 'application/json; charset=utf-8',
14      'x-edge-power': '9001',
15    },
16  });
17

18  return response;
19}

Geolocation Data

Edgio Functions provides geolocation data for each request. This data can be used to customize the response based on the client’s location.

Router Configuration

JavaScriptroutes.js
1import {Router, edgioRoutes} from '@edgio/core';
2

3export default new Router()
4  .use(edgioRoutes)
5

6  .match('/some/path', {
7    edge_function: './edge-functions/main.js',
8  })

Edge Function

JavaScriptedge-functions/main.js
1export async function handleHttpRequest(request, context) {
2  // Forward the incoming request to the defined origin server.
3  const response = await fetch(request.url, {
4    edgio: {
5      origin: 'web',
6    },
7  });
8

9  // Parse the response body as JSON
10  const body = await response.json();
11

12  // Add the customer's postal_code to the json response
13  body.postal_code = context.geo.postal_code;
14

15  // Return the response and end the edge function.
16  // Note: Since the original response body is read-only,
17  // we must create a new response with the updated body.
18  const jsonBody = JSON.stringify(body);
19

20  return new Response(jsonBody, response);
21}