Sample App using order's and order signature validation

app.py

@@ -3,20 +3,40 @@
 
 from flask import Flask, render_template, request
 
-app = Flask(__name__,static_folder = "static", static_url_path='')
+app = Flask(__name__, static_folder="static", static_url_path='')
 razorpay_client = razorpay.Client(auth=("<APP_ID>", "<APP_SECRET>"))
 
 
 @app.route('/')
 def app_create():
-    return render_template('app.html')
+    data = {
+        'amount': 5100,
+        'currency': 'INR',
+        'receipt': 'test receipt',
+        'payment_capture': 1,
+        'notes': {
+            'key': 'value'
+        }
+    }
+
+    order = razorpay_client.order.create(data)
+
+    order_id = order['id']
+
+    return render_template('app.html', order_id=order_id, amount=data['amount'])
 
 
 @app.route('/charge', methods=['POST'])
 def app_charge():
-    amount = 5100
+    params_dict = dict(request.form.iteritems())
+
+    try:
+        razorpay_client.utility.verify_payment_signature(params_dict)
+    except ValueError:
+        return json.dumps('Signature Validatioon failed')
+
     payment_id = request.form['razorpay_payment_id']
-    razorpay_client.payment.capture(payment_id, amount)
+
     return json.dumps(razorpay_client.payment.fetch(payment_id))
 
 if __name__ == '__main__':

templates/app.html

@@ -7,7 +7,7 @@
         <script
             src="https://checkout.razorpay.com/v1/checkout.js"
             data-key="rzp_test_WyK93y9mvps7SN"
-            data-amount="5100"
+            data-amount="{{amount}}"
             data-name="Daft Punk"
             data-description="Purchase Description"
             data-image="vk.jpg"
@@ -16,6 +16,7 @@
             data-prefill.name="Harshil Mathur"
             data-prefill.email="[email protected]"
             data-prefill.contact="9999999999"
+            data-order_id="{{order_id}}"
             data-notes.shopping_order_id="21">
         </script>
         <input type="hidden" name="shopping_order_id" value="21">