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How to use publish_batch method in localstack

Best Python code snippet using localstack_python

test_consumer.py

Source:test_consumer.py

...26async def test_consume(stream: str, consumer: Consumer, producer: Producer) -> None:27    captured: list[bytes] = []28    await consumer.subscribe(stream, callback=captured.append)29    assert await producer.publish(stream, b"one") == 130    assert await producer.publish_batch(stream, [b"two", b"three"]) == [2, 3]31    await wait_for(lambda: len(captured) >= 3)32    assert captured == [b"one", b"two", b"three"]33async def test_offset_type_first(stream: str, consumer: Consumer, producer: Producer) -> None:34    captured: list[bytes] = []35    await consumer.subscribe(36        stream,37        callback=captured.append,38        offset_type=OffsetType.FIRST,39    )40    messages = [str(i).encode() for i in range(1, 11)]41    await producer.publish_batch(stream, messages)42    await wait_for(lambda: len(captured) >= 10)43    assert captured == messages44async def test_offset_type_offset(stream: str, consumer: Consumer, producer: Producer) -> None:45    captured: list[bytes] = []46    await consumer.subscribe(47        stream,48        callback=captured.append,49        offset_type=OffsetType.OFFSET,50        offset=7,51    )52    messages = [str(i).encode() for i in range(1, 11)]53    await producer.publish_batch(stream, messages)54    await wait_for(lambda: len(captured) >= 3)55    assert captured == messages[7:]56async def test_offset_type_last(stream: str, consumer: Consumer, producer: Producer) -> None:57    messages = [str(i).encode() for i in range(1, 5_000)]58    await producer.publish_batch(stream, messages)59    captured: list[bytes] = []60    await consumer.subscribe(61        stream,62        callback=captured.append,63        offset_type=OffsetType.LAST,64        subscriber_name="test-subscriber",65    )66    await wait_for(lambda: len(captured) > 0 and captured[-1] == b"4999")67    assert len(captured) < len(messages)68async def test_offset_type_timestamp(stream: str, consumer: Consumer, producer: Producer) -> None:69    messages = [str(i).encode() for i in range(1, 5_000)]70    await producer.publish_batch(stream, messages)71    # mark time in between message batches72    now = int(time.time() * 1000)73    messages = [str(i).encode() for i in range(5_000, 5_100)]74    await producer.publish_batch(stream, messages)75    captured: list[bytes] = []76    await consumer.subscribe(stream, callback=captured.append, offset_type=OffsetType.TIMESTAMP, offset=now)77    await wait_for(lambda: len(captured) > 0 and captured[0] >= b"5000")78async def test_offset_type_next(stream: str, consumer: Consumer, producer: Producer) -> None:79    messages = [str(i).encode() for i in range(1, 11)]80    await producer.publish_batch(stream, messages)81    captured: list[bytes] = []82    await consumer.subscribe(83        stream,84        callback=captured.append,85        offset_type=OffsetType.NEXT,86        subscriber_name="test-subscriber",87    )88    await producer.publish(stream, b"11")89    await wait_for(lambda: len(captured) > 0)90    assert captured == [b"11"]91async def test_consume_with_resubscribe(stream: str, consumer: Consumer, producer: Producer) -> None:92    captured: list[bytes] = []93    subscriber_name = await consumer.subscribe(stream, callback=captured.append)94    await producer.publish(stream, b"one")...

batch_test.py

Source:batch_test.py

...18        now_time = str(datetime.now()).replace(" ", "_")19        project_batch = create_batch(client, project.project, f"Batch-{now_time}")20        assert isinstance(project_batch, ProjectBatch)21        assert project_batch.status == "open"22    def test_publish_batch(self, client: IAC.InputApiClient):23        projects = get_projects(client=client)24        project = self.filter_batch_project(projects)25        now_time = str(datetime.now()).replace(" ", "_")26        created_batch = create_batch(client, project.project, f"Batch-{now_time}")27        published_batch = publish_batch(client, project.project, created_batch.batch)...

publisher.py

Source:publisher.py

2import time3from os.path import basename4import glob5import boto36def publish_batch(client, streamname, batch):7    response = client.put_record_batch(DeliveryStreamName=streamname, Records=batch)8    if response["FailedPutCount"] > 0:9        print(f"{response['FailedPutCount']} failed, retrying")10        for i, obj in enumerate(response["RequestResponses"]):11            if "RecordId" in obj:12                del batch[i]13        time.sleep(1)14        publish_batch(client, streamname, batch)15    else:16        batch.clear()17if __name__ == "__main__":18    sess = boto3.Session(region_name="us-east-1",)19    client = sess.client("firehose")20    batchsize = 50021    res = client.list_delivery_streams()22    streamname, *b = [23        i for i in res["DeliveryStreamNames"] if i.startswith("streaming_submissions-")24    ]25    batch = []26    for filename in glob.glob(sys.argv[1]):27        with open(filename) as csvf:28            for i, row in enumerate(csvf.readlines()):29                if len(batch) >= batchsize:30                    publish_batch(client, streamname, batch)31                batch.append({"Data": basename(filename) + " " + row})32            else:33                publish_batch(client, streamname, batch)34                print(35                    f"Published {i + 1} records to {streamname} from {filename} in batches of {batchsize}"...

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