update storage token key to become environment variable

Author: eiman-eltigani-ttd

.env.sample

@@ -8,4 +8,5 @@ UID2_CSTG_SUBSCRIPTION_ID="DMr7uHxqLU"
 UID2_API_KEY="your-api-key"
 UID2_CLIENT_SECRET="your-client-secret"
 UID2_JS_SDK_URL="https://cdn.integ.uidapi.com/uid2-sdk-4.0.1.js"
-UID2_JS_SDK_NAME="__uid2"
+UID2_JS_SDK_NAME="__uid2"
+UID2_STORAGE_KEY="__uid2_advertising_token"

web-integrations/prebid-integrations/client-server/README.md

@@ -172,6 +172,7 @@ Enter an opted-out email and click "Generate UID2".
 | `UID2_BASE_URL`      | The UID2 Operator endpoint. Use `http://localhost:8080` for local or the integration URL.       | `http://localhost:8080`                  |
 | `UID2_API_KEY`       | Your UID2 API key with GENERATOR role.                                                           | `UID2-C-L-124-H8VwqX...`                 |
 | `UID2_CLIENT_SECRET` | Your UID2 client secret.                                                                         | `NcMgi6Y8C80SlxvV7pYlfcvEIo+2b0508...` |
+| `UID2_STORAGE_KEY`   | Your localStorage key for storing UID2 tokens.         | `__uid2_advertising_token`               |
 
 **Note:** For Docker, use `http://host.docker.internal:8080` instead of `http://localhost:8080` to access services on your host machine.
 

web-integrations/prebid-integrations/client-server/public/index.html

@@ -9,7 +9,7 @@
     <script>
       console.log('Initializing example.');
 
-      const UID2_STORAGE_KEY = '__uid2_advertising_token';
+      let UID2_STORAGE_KEY = '__uid2_advertising_token'; // Default, will be loaded from server config
       let currentIdentity = null;
 
       // Initialize Prebid.js queue if not already present
@@ -137,6 +137,17 @@
         location.reload();
       }
 
+      async function loadConfig() {
+        try {
+          const response = await fetch('/config');
+          const config = await response.json();
+          UID2_STORAGE_KEY = config.storageKey;
+          console.log('Loaded config from server, storage key:', UID2_STORAGE_KEY);
+        } catch (error) {
+          console.log('Failed to load config from server, using default storage key');
+        }
+      }
+
       function loadStoredIdentity() {
         const storedToken = localStorage.getItem(UID2_STORAGE_KEY);
         if (storedToken) {
@@ -154,9 +165,11 @@
         }
       }
 
-      function onDocumentReady() {
+      async function onDocumentReady() {
         console.log('Setting up interface handlers.');
 
+        await loadConfig();
+        
         $('#login').click(handleLogin);
         $('#clear_storage').click(handleClearStorage);
 

web-integrations/prebid-integrations/client-server/server.js

@@ -14,6 +14,7 @@ const port = 3052;
 const uid2BaseUrl = process.env.UID2_BASE_URL || 'https://operator-integ.uidapi.com';
 const uid2ApiKey = process.env.UID2_API_KEY;
 const uid2ClientSecret = process.env.UID2_CLIENT_SECRET;
+const uid2StorageKey = process.env.UID2_STORAGE_KEY || '__uid2_advertising_token';
 
 // Encryption constants
 const ivLength = 12;
@@ -95,9 +96,14 @@ function createEnvelope(payload) {
 }
 
 // ============================================================================
-// API Endpoint
+// API Endpoints
 // ============================================================================
 
+// GET /config - Returns client configuration
+app.get('/config', (req, res) => {
+    res.json({ storageKey: uid2StorageKey });
+});
+
 // POST /login - Generates UID2 token for email address
 app.post('/login', async (req, res) => {
     const jsonEmail = JSON.stringify({ email: req.body.email });