Adding source code files for Chapter 12

Chapter12/Notification-app/main.py

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+from sendgrid import SendGridAPIClient
+from sendgrid.helpers.mail import Mail, Email, To, Content
+
+def handle_storage_event(event, context):
+
+  from_email = Email("masif.72@gmail.com")
+  to_emails = To("masif.carleton@gmail.com")
+  subject = "Your Storage Bucket Notification"
+  content = Content("text/plain",
+                    f"Bucket Impacted:{event['bucket']} \n" +
+                    f"File Impacted: {event['name']} \n " +
+                    f"Event Time: {event['timeCreated']} \n" +
+                    f"Event ID: {context.event_id} \n" +
+                    f"Event Type: {context.event_type}"
+                    )
+  mail = Mail(from_email, to_emails, subject, content)
+  mail_json = mail.get()
+
+  sg = SendGridAPIClient()
+  response = sg.client.mail.send.post(request_body=mail_json)
+  print(response.status_code) # for logging purpose
+  print(response.headers)

Chapter12/Notification-app/requirements.txt

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+python-http-client==3.3.2
+sendgrid==6.7.1
+starkbank-ecdsa==1.1.1

Chapter12/Notification-app/test1.txt

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+This is empty file for testing