feat: Add slack provider (#77)

Author: danidee10

docs/providers.rst

@@ -9,7 +9,20 @@ and contain the logic for delivery that payload to an external service.
 
 Below are the list of supported providers:
 
-Slack,
+``Slack``
+---------
+
+settings::
+
+    NOTIFICATIONS_SLACK_BOT_TOKEN  # Slack notification bot token
+
+Single payload::
+
+    {
+        'channel': '#slack-channel-name',
+        'text': 'message',
+    }
+
 Pusher,
 Google FCM,
 django-channels,

notifications/default_settings.py

@@ -33,3 +33,5 @@
 NOTIFICATIONS_FCM_KEY = getattr(settings, 'NOTIFICATIONS_FCM_KEY', '')
 NOTIFICATIONS_PUSHER_URL = getattr(settings, 'NOTIFICATIONS_PUSHER_URL', '')
 NOTIFICATIONS_SQS_QUEUE_URL = getattr(settings, 'NOTIFICATIONS_SQS_QUEUE_URL', '')
+
+NOTIFICATIONS_SLACK_BOT_TOKEN = getattr(settings, 'NOTIFICATIONS_SLACK_BOT_TOKEN', '')

notifications/providers/__init__.py

@@ -15,3 +15,8 @@
     from .django_channels import DjangoChannelsProvider  # noqa
 except ImportError:
     pass
+
+try:
+    from .slack import SlackNotificationProvider  # noqa
+except ImportError:
+    pass

notifications/providers/base.py

@@ -22,6 +22,6 @@ def providers(cls):
     def send(self, payload):
         raise NotImplementedError
 
-    @abc.abstractmethod
     def send_bulk(self, payloads):
-        raise NotImplementedError
+        for payload in payloads:
+            self.send(payload)

notifications/providers/slack.py

@@ -0,0 +1,16 @@
+from . import BaseNotificationProvider
+
+from notifications import default_settings as settings
+
+from slack_sdk import WebClient
+
+
+class SlackNotificationProvider(BaseNotificationProvider):
+    name = 'slack'
+
+    def __init__(self, context=dict()):
+        self.slack_client = WebClient(token=settings.NOTIFICATIONS_SLACK_BOT_TOKEN)
+        super().__init__(context=context)
+
+    def send(self, payload):
+        self.slack_client.chat_postMessage(**payload)

requirements.txt

@@ -8,5 +8,6 @@ m2r2==0.2.7
 pusher==3.0.0
 pytz==2017.2
 requests==2.25.1
+slack_sdk==3.11.2
 Sphinx==3.5.1
 sphinx-rtd-theme==0.5.1

setup.py

@@ -29,6 +29,7 @@
 
     # Provider requirements
     'pusher': ['pusher>=3.0.0'],
+    'slack': ['slack_sdk>=3.11.2']
 }
 EXCLUDE = ['notifs', 'tests', '*.tests', '*.tests.*', 'tests.*']