Optimizely Edge Delivery SDK
Optimizely Edge Delivery lets you execute Optimizely Web experiments on Cloudflare Workers.
## Prerequisites
- You must have a [Cloudflare Account](https://dash.cloudflare.com/sign-up/workers-and-pages).
- You must install the [Wrangler CLI](https://developers.cloudflare.com/workers/wrangler/).
## Implementing in an existing Worker
You can install the Optimizely Edge Delivery SDK in any existing Cloudflare Worker, whether you already route your incoming traffic through a Cloudflare Worker, or you'd prefer to start from scratch using Cloudflare's [getting started guide](https://developers.cloudflare.com/workers/get-started/guide/).
### Installing the Edge Delivery SDK
Install the Edge Delivery library using npm:
```bash
npm install @optimizely/edge-delivery
```
### Implementing and executing experiments
The SDK accepts a config object `options`. All properties listed below are members of that object (e.g. `options.environment`). They are grouped by purpose.
#### Required
| Option | Type | Description |
| --- | --- | --- |
| `environment` | `'dev' \| 'prod'` | Defines the environment the worker runs in. Use `'dev'` to enable the local development URL options below. |
#### Experiment configuration
| Option | Type | Default | Description |
| --- | --- | --- | --- |
| `snippetId` | `string \| number` | — | The Snippet ID pointing to the generated Edge Delivery configuration file. |
| `accountId` | `number` | — | The Account ID, used when building snippet URLs (e.g. `cdn.optimizely.com/public/{accountId}/s/{snippetId}/web_sdk_v0.json`). |
| `DATA` | `string` | — | The JSON configuration file (as a string) used to execute your experiments. If omitted, it is fetched from `kvNamespace` using `snippetId` when both are provided. |
| `isProd` | `boolean` | `true` | Whether this is a production environment. |
| `isSnippetless` | `boolean` | `false` | Runs Edge Delivery in snippetless mode, injecting no snippet on the page. Only supports experiments with page-level transforms and no browser-level transforms, as it will not compile any browser JavaScript. |
| `useEdgeDeliverySnippet` | `boolean` | `false` | When `true`, injects the Edge Delivery snippet as a `