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How to use subscribe_to_shard method in localstack

Best Python code snippet using localstack_python

consume_stream_data.py

Source:consume_stream_data.py

...57        time.sleep(5)58def fetch_records(stream_name, stream_arn, shard_id, consumer_name, consumer_arn):59    # get dynamodb table to be inserted60    table = get_dynamodb_table('SensorNetworkData')61    response = client.subscribe_to_shard(62        ConsumerARN=consumer_arn,63        ShardId=shard_id,64        StartingPosition={'Type': 'TRIM_HORIZON'}65    )66    shard_iterator = client.get_shard_iterator(StreamName=stream_name,67                                               ShardId=shard_id,68                                               ShardIteratorType='TRIM_HORIZON')['ShardIterator']69    counter = 070    while(True and counter < 10000):71        response = client.get_records(ShardIterator=shard_iterator)72        shard_iterator = response['NextShardIterator']73        if len(response['Records']) > 0:74            data = json.loads(response['Records'][0]['Data'], parse_float=Decimal)75            print('Processing sensor: %s', data['sensor_uuid'])76            data_fix = remove_empty_string(data)77            try:78                '''79                table.put_item(80                    Item=data_fix81                )82                '''83                print(data_fix)84                counter += 185            except:86                print('ERROR : ')87        else:88            print('Waiting..')89            time.sleep(5)90if __name__ == '__main__':91    stream_name = 'DataStream'92    consumer_name = 'StreamConsumer3'93    # setup dynamodb94    dynamodb = boto3.resource('dynamodb')95    table = dynamodb.Table('DataStream')96    # setup kinesis97    client = boto3.client('kinesis')98    # get stream details99    response = client.describe_stream(StreamName=stream_name)100    stream_arn = response['StreamDescription']['StreamARN']101    shard_id = response['StreamDescription']['Shards'][2]['ShardId']102    # get consumer details103    response = client.describe_stream_consumer(104        StreamARN=stream_arn,105        ConsumerName=consumer_name106    )107    consumer_arn = response['ConsumerDescription']['ConsumerARN']108    # subscribe to shard109    response = client.subscribe_to_shard(110        ConsumerARN=consumer_arn,111        ShardId=shard_id,112        StartingPosition={'Type': 'TRIM_HORIZON'}113    )114    # iterate event stream115    for event in response['EventStream']:116        print(event)117        if len(event['SubscribeToShardEvent']['Records']) > 0:118            # if records are not empty119            for record in event['SubscribeToShardEvent']['Records']:120                data = remove_empty_string(json.loads(record['Data'], parse_float=Decimal))121                print(data)...

test_eventstreams.py

Source:test_eventstreams.py

...49        ] == 'CREATING':50            print("Waiting for stream consumer creation")51            await asyncio.sleep(1)52        starting_position = {'Type': 'LATEST'}53        subscribe_response = await kinesis_client.subscribe_to_shard(54            ConsumerARN=consumer_arn,55            ShardId=shard_id,56            StartingPosition=starting_position,57        )58        async for event in subscribe_response['EventStream']:59            assert event['SubscribeToShardEvent']['Records'] == []60            break61    finally:62        if consumer_arn:63            await kinesis_client.deregister_stream_consumer(64                StreamARN=stream_arn,65                ConsumerName=consumer_name,66                ConsumerARN=consumer_arn,67            )...

consumer_service.py

Source:consumer_service.py

...23            ConsumerName='Consumer'24        )25        print(register_response)26        shardList = cls.consumer.list_shards(StreamName=cls.STREAM_NAME)27        result = cls.consumer.subscribe_to_shard(28            ConsumerARN=register_response.Consumer.ConsumerARN,29            ShardId=shardList[0].ShardId,30            StartingPosition={31                'Type': 'AT_SEQUENCE_NUMBER'32            }33        )34        print(result)35        cls.consumer.deregister_stream_consumer(36                    StreamARN=cls.AWS_ARN,37                    ConsumerName='Consumer',38                    ConsumerARN=register_response.ConsumerARN...

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