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Add support to "AT_TIMESTAMP" ShardIteratorType #22

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Add support to "AT_TIMESTAMP" ShardIteratorType #22

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a04f20e
Add support to "AT_TIMESTAMP" ShardIteratorType
M0dM Sep 30, 2019
954c9e4
Fix dict typo
M0dM Sep 30, 2019
ce4257c
Fix missing dateutil.parser import
M0dM Sep 30, 2019
e30b811
Add python-dateutil missing dependency
M0dM Sep 30, 2019
3c526ee
python-dateutil is now a direct dependency.
M0dM Sep 30, 2019
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2 changes: 1 addition & 1 deletion requirements.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,6 @@ botocore==1.8.9 # via boto3, s3transfer
docutils==0.14 # via botocore
jmespath==0.9.3 # via boto3, botocore
offspring==0.0.3
python-dateutil==2.6.1 # via botocore
python-dateutil==2.6.1
s3transfer==0.1.12 # via boto3
six==1.11.0 # via python-dateutil
1 change: 1 addition & 0 deletions setup.py
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Expand Up @@ -16,6 +16,7 @@
url='https://github.com/NerdWalletOSS/kinesis-python',

install_requires=[
'python-dateutil',
'boto3>=1.4.4,<2.0',
'offspring>=0.0.3,<1.0',
'six>=1.11.0,<2.0',
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16 changes: 13 additions & 3 deletions src/kinesis/consumer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
import multiprocessing
import time

import dateutil.parser
import boto3
import six.moves.queue
from botocore.exceptions import ClientError
Expand Down Expand Up @@ -80,7 +81,7 @@ class KinesisConsumer(object):
"""
LOCK_DURATION = 30

def __init__(self, stream_name, boto3_session=None, state=None, reader_sleep_time=None):
def __init__(self, stream_name, boto3_session=None, state=None, reader_sleep_time=None, start_at_timestamp=None):
self.stream_name = stream_name
self.error_queue = multiprocessing.Queue()
self.record_queue = multiprocessing.Queue()
Expand All @@ -91,7 +92,8 @@ def __init__(self, stream_name, boto3_session=None, state=None, reader_sleep_tim
self.state = state

self.reader_sleep_time = reader_sleep_time

self.start_at_timestamp = start_at_timestamp

self.shards = {}
self.stream_data = None
self.run = True
Expand Down Expand Up @@ -136,7 +138,15 @@ def setup_shards(self):
iterator_args = self.state.get_iterator_args(self.state_shard_id(shard_data['ShardId']))
except AttributeError:
# no self.state
iterator_args = dict(ShardIteratorType='LATEST')
if self.start_at_timestamp is not None:
iterator_args = {
"ShardIteratorType": 'AT_TIMESTAMP',
"Timestamp": dateutil.parser.parse(
self.start_at_timestamp
)
}
else:
iterator_args = dict(ShardIteratorType='LATEST')

log.info("%s iterator arguments: %s", shard_data['ShardId'], iterator_args)

Expand Down