Move example from README.md to 'examples/webhook-signing' folder

README.md

@@ -132,57 +132,7 @@ charge.lastResponse.statusCode
 
 Stripe can optionally sign the webhook events it sends to your endpoint, allowing you to validate that they were not sent by a third-party.  You can read more about it [here](https://stripe.com/docs/webhooks#signatures).
 
-Here's an example of how to use it with Express:
-
-```js
-const Express = require('express');
-const bodyParser = require('body-parser')
-
-const Stripe = require('stripe')('sk_test_...');
-
-const webhookSecret = 'whsec_...';
-
-// We use a router here so we can use a separate `bodyParser` instance that
-// adds the raw POST data to the `request`
-const router = Express.Router();
-
-router.use(bodyParser.json({
-  verify: function(request, response, buffer) {
-    request.rawBody = buffer.toString();
-  },
-}));
-
-router.post('/webhooks', function(request, response) {
-  var event;
-
-  try {
-    // Try adding the Event as `request.event`
-    event = stripe.webhooks.constructEvent(
-      request.rawBody,
-      request.headers['stripe-signature'],
-      webhookSecret
-    );
-  } catch (e) {
-    // If `constructEvent` throws an error, respond with the message and return.
-    console.log('Error', e.message);
-
-    return response.status(400).send('Webhook Error:' + e.message);
-  }
-
-  console.log('Success', event.id);
-
-  // Event was 'constructed', so we can respond with a 200 OK
-  response.status(200).send('Signed Webhook Received: ' + event.id);
-});
-
-// You could either create this app, or just return the `Router` for use in an
-// existing Express app - up to you!
-const app = Express();
-app.use(router);
-app.listen(3000, function() {
-  console.log('Example app listening on port 3000!')
-});
-```
+You can find an example of how to use this with [Express](https://expressjs.com/) in the [`examples/webhook-signing`](examples/webhook-signing) folder.
 
 ## More Information
 

examples/webhook-signing/express.js

@@ -0,0 +1,60 @@
+'use strict';
+
+const Stripe = require('stripe');
+const Express = require('express');
+const bodyParser = require('body-parser')
+
+/**
+ * You'll need to make sure this is externally accessible.  ngrok (https://ngrok.com/)
+ * makes this really easy.
+ *
+ * To run this file, just provide your Secret API Key and Webhook Secret, like so:
+ * STRIPE_API_KEY=sk_test_XXX WEBHOOK_SECRET=whsec_XXX node express.js
+ */
+
+const apiKey = process.env['STRIPE_API_KEY'];
+const webhookSecret = process.env['WEBHOOK_SECRET']
+
+const stripe = Stripe(apiKey);
+
+// We use a router here so it can use its own `bodyParser` instance to add
+// the raw POST data to the `request`
+const router = Express.Router();
+
+router.use(bodyParser.json({
+  verify: function(request, response, buffer) {
+    request.rawBody = buffer.toString();
+  },
+}));
+
+router.post('/webhooks', function(request, response) {
+  var event;
+
+  try {
+    // Try adding the Event as `request.event`
+    event = stripe.webhooks.constructEvent(
+      request.rawBody,
+      request.headers['stripe-signature'],
+      webhookSecret
+    );
+  } catch (e) {
+    // If `constructEvent` throws an error, respond with the message and return.
+    console.log('Error', e.message);
+
+    return response.status(400).send('Webhook Error:' + e.message);
+  }
+
+  console.log('Success', event.id);
+
+  // Event was 'constructed', so we can respond with a 200 OK
+  response.status(200).send('Signed Webhook Received: ' + event.id);
+});
+
+// You could either create this app, or just return the `Router` for use in an
+// existing Express app - up to you!
+
+const app = Express();
+app.use(router);
+app.listen(3000, function() {
+  console.log('Example app listening on port 3000!')
+});

examples/webhook-signing/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "webhook-signing-example-express",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "body-parser": "^1.17.1",
+    "express": "^4.15.2",
+    "morgan": "^1.8.1",
+    "stripe": "^4.18.0"
+  }
+}