Source code for airflow.contrib.hooks.aws_sns_hook
# -*- coding: utf-8 -*-
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"""
This module contains AWS SNS hook
"""
import json
from airflow.contrib.hooks.aws_hook import AwsHook
[docs]class AwsSnsHook(AwsHook):
"""
Interact with Amazon Simple Notification Service.
"""
def __init__(self, *args, **kwargs):
self.conn = None
super(AwsSnsHook, self).__init__(*args, **kwargs)
[docs] def get_conn(self):
"""
Get an SNS connection
"""
self.conn = self.get_client_type('sns')
return self.conn
[docs] def publish_to_target(self, target_arn, message, subject=None):
"""
Publish a message to a topic or an endpoint.
:param target_arn: either a TopicArn or an EndpointArn
:type target_arn: str
:param message: the default message you want to send
:param message: str
:param subject: subject of message
:type subject: str
"""
conn = self.get_conn()
messages = {
'default': message
}
if subject is None:
return conn.publish(
TargetArn=target_arn,
Message=json.dumps(messages),
MessageStructure='json'
)
return conn.publish(
TargetArn=target_arn,
Message=json.dumps(messages),
MessageStructure='json',
Subject=subject
)