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How to use _topic_arn method in localstack

Best Python code snippet using localstack_python

message_action.py

Source:message_action.py

1# Standard Library2import json3import os4# Third Party5import boto36# First Party7from smdebug.core.logger import get_logger8# action :9# {name:'sms' or 'email', 'endpoint':'phone or emailid'}10class MessageAction:11    def __init__(self, rule_name, message_type, message_endpoint):12        self._topic_name = "SMDebugRules"13        self._logger = get_logger()14        if message_type == "sms" or message_type == "email":15            self._protocol = message_type16        else:17            self._protocol = None18            self._logger.info(19                f"Unsupported message type:{message_type} in MessageAction. Returning"20            )21            return22        self._message_endpoint = message_endpoint23        # Below 2 is to help in tests24        self._last_send_mesg_response = None25        self._last_subscription_response = None26        env_region_name = os.getenv("AWS_REGION", "us-east-1")27        self._sns_client = boto3.client("sns", region_name=env_region_name)28        self._topic_arn = self._create_sns_topic_if_not_exists()29        self._subscribe_mesgtype_endpoint()30        self._logger.info(31            f"Registering messageAction with protocol:{self._protocol} endpoint:{self._message_endpoint} and topic_arn:{self._topic_arn} region:{env_region_name}"32        )33        self._rule_name = rule_name34    def _create_sns_topic_if_not_exists(self):35        try:36            topic = self._sns_client.create_topic(Name=self._topic_name)37            self._logger.info(38                f"topic_name: {self._topic_name} , creating topic returned response:{topic}"39            )40            if topic:41                return topic["TopicArn"]42        except Exception as e:43            self._logger.info(44                f"Caught exception while creating topic:{self._topic_name} exception is: \n {e}"45            )46        return None47    def _check_subscriptions(self, topic_arn, protocol, endpoint):48        try:49            next_token = "random"50            subs = self._sns_client.list_subscriptions()51            sub_array = subs["Subscriptions"]52            while next_token is not None:53                for sub_dict in sub_array:54                    proto = sub_dict["Protocol"]55                    ep = sub_dict["Endpoint"]56                    topic = sub_dict["TopicArn"]57                    if proto == protocol and topic == topic_arn and ep == endpoint:58                        self._logger.info(f"Existing Subscription found: {sub_dict}")59                        return True60                if "NextToken" in subs:61                    next_token = subs["NextToken"]62                    subs = self._sns_client.list_subscriptions(NextToken=next_token)63                    sub_array = subs["Subscriptions"]64                    continue65                else:66                    next_token = None67        except Exception as e:68            self._logger.info(69                f"Caught exception while list subscription topic:{self._topic_name} exception is: \n {e}"70            )71        return False72    def _subscribe_mesgtype_endpoint(self):73        response = None74        try:75            if self._topic_arn and self._protocol and self._message_endpoint:76                filter_policy = {}77                if self._protocol == "sms":78                    filter_policy["phone_num"] = [self._message_endpoint]79                else:80                    filter_policy["email"] = [self._message_endpoint]81                if not self._check_subscriptions(82                    self._topic_arn, self._protocol, self._message_endpoint83                ):84                    response = self._sns_client.subscribe(85                        TopicArn=self._topic_arn,86                        Protocol=self._protocol,  # sms or email87                        Endpoint=self._message_endpoint,  # phone number or email addresss88                        Attributes={"FilterPolicy": json.dumps(filter_policy)},89                        ReturnSubscriptionArn=False,  # True means always return ARN90                    )91                else:92                    response = f"Subscription exists for topic:{self._topic_arn}, protocol:{self._protocol}, endpoint:{self._message_endpoint}"93        except Exception as e:94            self._logger.info(95                f"Caught exception while subscribing endpoint on topic:{self._topic_arn} exception is: \n {e}"96            )97        self._logger.info(f"response for sns subscribe is {response} ")98        self._last_subscription_response = response99    def _send_message(self, message):100        response = None101        message = f"SMDebugRule:{self._rule_name} fired. {message}"102        try:103            if self._protocol == "sms":104                msg_attributes = {105                    "phone_num": {"DataType": "String", "StringValue": self._message_endpoint}106                }107            else:108                msg_attributes = {109                    "email": {"DataType": "String", "StringValue": self._message_endpoint}110                }111            response = self._sns_client.publish(112                TopicArn=self._topic_arn,113                Message=message,114                Subject=f"SMDebugRule:{self._rule_name} fired",115                # MessageStructure='json',116                MessageAttributes=msg_attributes,117            )118        except Exception as e:119            self._logger.info(120                f"Caught exception while publishing message on topic:{self._topic_arn} exception is: \n {e}"121            )122        self._logger.info(f"Response of send message:{response}")123        self._last_send_mesg_response = response124        return response125    def invoke(self, message):...

sns.py

Source:sns.py

1class SNSTopic(object):2    """ Helper for SNS Topic creation/management.3    Working with SNS topics is kind of annoying by default.  This provides a4    more simple interface for working with them.5    """6    def __init__(self, connection, topic_name):7        self._conn = connection8        self._topic_name = topic_name9        self._topic_arn = None10    def _setup_topic(self):11        if self._topic_arn:12            return13        conn = self._conn14        response = conn.create_topic(self._topic_name)['CreateTopicResponse']15        self._topic_arn = response['CreateTopicResult']['TopicArn']16    def publish(self, *args, **kwargs):17        self._setup_topic()18        return self._conn.publish(self._topic_arn, *args, **kwargs)19    def subscribe_sqs_queue(self, *args, **kwargs):20        self._setup_topic()21        response = self._conn.subscribe_sqs_queue(self._topic_arn,22                                                  *args, **kwargs)23        response = response['SubscribeResponse']24        result = response['SubscribeResult']...

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