"
+}'
+```
+
+#### FastSpring webhook
+We use this endpoint to:
+- Receive webhook calls following [documentation](https://developer.fastspring.com/reference/webhooks-overview)
+- Call UGS Cloud Code to grant the player the corresponding items/currencies
+
+## Deployment
+
+### UGS
+You can deploy the `VirtualPurchase` script directly on [UGS Cloud Code Dashboard](https://cloud.unity.com/)
+
+### AWS
+Once configured your [AWS CLI](https://docs.aws.amazon.com/cli/latest/userguide/getting-started-quickstart.html), to deploy simply run:
+
+```
+$ npm run deploy
+
+# or
+
+$ serverless deploy
+```
+
diff --git a/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/README.md b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/README.md
new file mode 100644
index 0000000..92cccea
--- /dev/null
+++ b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/README.md
@@ -0,0 +1,44 @@
+## Web Store Frontend: Secure Checkout with FastSpring
+
+This frontend script handles rendering a secure FastSpring embedded checkout based on query parameters sent from Unity. It is responsible for:
+
+- Validating and decoding the checkout payload
+- Initializing the FastSpring secure session
+- Customizing the UI for each product
+- Handling post-checkout success or cancellation
+- Returning to the game via deeplink or URL scheme
+
+---
+
+## Expected URL Parameters
+
+The store expects the following URL parameters to be passed by Unity:
+
+| Parameter | Required | Description |
+|----------------|----------|-------------|
+| `product` | ✅ | Product identifier (e.g. `coinpack-150`) |
+| `securePayload` | ✅ | Base64-encoded and URL-escaped encrypted payload |
+| `secureKey` | ✅ | Base64-encoded and URL-escaped encryption key |
+| `returnUrl` | ✅ | App URL to redirect to after checkout (e.g. `fastspring://shop-return`) |
+
+---
+
+## Payload Decoding and FastSpring Secure Initialization
+
+```js
+const decodedPayload = decodeURIComponent(securePayload);
+const decodedKey = decodeURIComponent(secureKey);
+
+fastspring.builder.secure(decodedPayload, decodedKey);
+```
+
+## Configure HTML with parameters:
+There are some parameters to be configured into the html to run the webshop
+```
+data-storefront="USE_YOUR_URL/embedded-store"
+data-access-key="USE_YOUR_ACCESS_KEY"
+```
+
+(Mind the - symbol of Access key)
+
+These parameters can be obtained from FastSpring steps [here](https://github.com/SamuraiCoder/FastSpringPOC/tree/main/Unity-UGS#fastspring-account-configuration)
diff --git a/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/certs/how_to_generate_certs.txt b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/certs/how_to_generate_certs.txt
new file mode 100644
index 0000000..7a087a6
--- /dev/null
+++ b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/certs/how_to_generate_certs.txt
@@ -0,0 +1,4 @@
+## Public cert
+openssl req -new -x509 -key privatekey.pem -out publiccert.pem -days 3650 -subj "/CN=fastspring"
+# Private cert
+openssl genrsa -out privatekey.pem 2048
diff --git a/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/certs/publiccert.pem b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/certs/publiccert.pem
new file mode 100644
index 0000000..bfe17b6
--- /dev/null
+++ b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/certs/publiccert.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/img/coin-webshop.png b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/img/coin-webshop.png
new file mode 100644
index 0000000..9046023
Binary files /dev/null and b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/img/coin-webshop.png differ
diff --git a/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/img/subscription-webshop.png b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/img/subscription-webshop.png
new file mode 100644
index 0000000..962e930
Binary files /dev/null and b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/img/subscription-webshop.png differ
diff --git a/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/index.html b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/index.html
new file mode 100644
index 0000000..43c7687
--- /dev/null
+++ b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/index.html
@@ -0,0 +1,26 @@
+
+
+
+
+
+ FastSpring Embedded Store
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/store.js b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/store.js
new file mode 100644
index 0000000..e2fdc29
--- /dev/null
+++ b/fsbuilds-google-external-linking/Unity-UGS/Backend/WebCode/store.js
@@ -0,0 +1,117 @@
+window.addEventListener("DOMContentLoaded", () => {
+ const urlParams = new URLSearchParams(window.location.search);
+
+ const product = urlParams.get("product");
+ const securePayload = urlParams.get("securePayload");
+ const secureKey = urlParams.get("secureKey");
+ const returnUrl = urlParams.get("returnUrl");
+ const externalTransactionToken = urlParams.get("externalTransactionToken");
+
+ if (!product || !securePayload || !secureKey) {
+ document.getElementById("fsc-embedded-checkout-container").innerHTML = `
+ Missing product or token in URL parameters.
+ `;
+ return;
+ }
+
+ const validProducts = {
+ "coinpack-150": {
+ title: "MEGA 100",
+ subtitle: "Coin Pack + 50 Bonus Coins",
+ image: "img/coin-webshop.png",
+ type: "one-time",
+ amount: 150, // coins granted; carried back to the app on the return URL
+ thankYouMessage: "Thank you for buying the",
+ productName: "MEGA 100 Coin Pack with
50 Bonus Coins!",
+ completionMessage: "You have been charged"
+ },
+ "bronze-monthly": {
+ title: "Photo App Premium",
+ subtitle: "Monthly Subscription",
+ image: "img/subscription-webshop.png",
+ type: "subscription",
+ thankYouMessage: "Thank you for subscribing to",
+ productName: "Photo App Premium!",
+ completionMessage: "Your subscription of"
+ }
+ };
+
+ const productData = validProducts[product];
+ const header = document.getElementById("checkout-header");
+ if (productData && header) {
+ header.innerHTML = `
+ 
+ ${productData.title}
+ ${productData.subtitle}
+ `;
+ }
+
+ const decodedPayload = decodeURIComponent(securePayload);
+ const decodedKey = decodeURIComponent(secureKey);
+
+ // Step 1: Construct secure payload
+ fastspring.builder.secure(decodedPayload, decodedKey);
+
+ // Add error handler
+ window.onFSError = function(error) {
+ console.error("[WebCheckout] FastSpring Error:", error);
+ alert("FastSpring Error: " + JSON.stringify(error));
+ };
+
+ // Step 2: Handle post-checkout popup closure
+ window.onFSPopupClosed = function(orderReference) {
+ const container = document.getElementById("fsc-embedded-checkout-container");
+ const header = document.getElementById("checkout-header");
+ if (header) header.style.display = "none";
+
+ if (orderReference && orderReference.reference) {
+ // Purchase completed successfully
+ container.innerHTML = `
+
+
+
Purchase Successful!
+
Returning to game...
+
+
+
+
+
Purchase Cancelled
+
No order was completed.
+
+
+