> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://akamai.ferndocs.com/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://akamai.ferndocs.com/_mcp/server. # Create the Hello World code bundle Your Hello World code bundle must contain the `main.js` and `bundle.json` files. See [code bundle format](code-bundle-format.md) for more information. 1. Create a folder on your computer for the code bundle files. 2. Go to the [EdgeWorkers GitHub repository](https://github.com/akamai/edgeworkers-examples) and download the `main.js` and `bundle.json` files from the helloworld project or create them using the values below. 3. Use the Hello World code sample to create the JavaScript source in a file called `main.js`. > 👍 When you start creating your own EdgeWorkers functions you can use the built-in [Code bundle editor](code-bundle-editor.md) to validate and edit your `bundle.json` and `main.js` files. ```javascript // Hello World Example export function onClientRequest(request) { request.respondWith( 200, {}, '

Hello World From Akamai EdgeWorkers

'); } export function onClientResponse(request, response) { response.setHeader('X-Hello-World', 'From Akamai EdgeWorkers'); } ``` > 📘 Each time you want to activate a new EdgeWorkers code bundle or update an existing EdgeWorkers code bundle you need to create a new version number. 4. Compress the files into a code bundle. ```shell tar -czvf filename.tgz main.js bundle.json ``` 5. Next, follow these instructions to [deploy the Hello World code bundle](/edge-workers/deploy-hello-world-1).