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Cloudflare Worker Integration — GeoComply × FanDuel

Location not verified Click "Verify Location" to run a geolocation check

Integration Architecture

🌐

User's BrowserFanDuel sportsbook — requests SDK + license

GET /api/sdk · GET /api/license

⚡
Cloudflare Worker/api/sdk → proxies gc-html5.js  ·  /api/license → reads KV

Reads "gc_sdk_url" + "gc_license" from KV

🗄️

KV Namespace: FANDUEL_SECRETSGeoComply manages SDK version + license — operator touches neither

SDK + license delivered → SDK initialised

📍

Browser Geolocation APISDK collects location · result returned to your app

Operator Setup — 3 Steps

Create a KV Namespace

Run once in your Cloudflare dashboard or via Wrangler CLI. This is where GeoComply will write the license.

# Wrangler CLI
wrangler kv:namespace create FANDUEL_SECRETS

Bind the KV to your Worker

Add the binding to wrangler.toml. The namespace ID comes from step 1.

# wrangler.toml
[[kv_namespaces]]
binding = "FANDUEL_SECRETS"
id      = "<namespace-id>"

GeoComply pushes the license — you're done

GeoComply writes the license key to your KV namespace automatically and keeps it fresh. You never handle license rotation.

# GeoComply does this for you:
FANDUEL_SECRETS["gc_license"] = <signed-license-token>
# TTL managed by GeoComply — always valid

Worker Code

api/sdk.js — proxies SDK from GeoComply CDN

export async function onRequestGet({ env }) {
  // SDK URL managed in KV by GeoComply
  const url = await
    env.FANDUEL_SECRETS.get("gc_sdk_url")
    ?? "https://cdn.geocomply.com/gc-html5.js";

  const js = await fetch(url);
  return new Response(await js.text(), {
    headers: { "Content-Type": "application/javascript" }
  });
}

api/license.js — serves license from KV

export async function onRequestGet({ env }) {
  // License written by GeoComply, never by operator
  const license = await
    env.FANDUEL_SECRETS.get("gc_license");

  return Response.json({ license });
}

Live KV State

FANDUEL_SECRETS → "gc_license"

Not fetched yet — click Verify Location

The license shown above was served from KV by the Cloudflare Worker at /api/license. No token management code lives in your app.