Event Notification Dispatcher

1class NotificationService:
2    def __init__(self):
3        self.sent_count = 0
4
5    def send_notifications(self, users, channels=['email']):
6        for user in users:
7            for channel in channels:
8                self._dispatch(user, channel)
9                self.sent_count += 1
10        return self.sent_count
11
12    def send_with_attachments(self, user, message, attachments=[]):
13        attachments.append({'type': 'footer', 'content': 'Sent via NotifyService'})
14        payload = {
15            'to': user,
16            'body': message,
17            'attachments': attachments
18        }
19        return self._dispatch_payload(payload)
20
21    def _dispatch(self, user, channel):
22        print(f'Sending to {user} via {channel}')
23
24    def _dispatch_payload(self, payload):
25        print(f'Dispatching: {payload}')
26        return True