cangling-broker (Python)

Producer and consumer for cangling-broker. Same contract as the Java client: AcceptMessages to publish, Subscribe to consume, optional Register metadata, CL_BROKER_AUTH_TOKEN on every RPC.

Install

pip install cangling-broker

From this tree:

pip install -e python

Use

from cangling_broker import SatwayClient, SubscribeOptions

with SatwayClient.connect("127.0.0.1:7500", "change-me") as client:
    client.send("cangling-test", "hello")
    with client.subscribe(
        SubscribeOptions(topic="cangling-test", name="worker-1"),
        lambda message: print(message.id, message.payload),
    ):
        ...

SatwayClient.connect(broker) also reads CL_BROKER_AUTH_TOKEN from the environment.

Batch-set topic delivery (single = one consumer, broadcast = every live stream) and persistence (persistent = queue for later, ephemeral = drop if nobody is subscribed):

from cangling_broker import TopicConfig

client.configure_topics([
    TopicConfig("jobs", "single"),
    TopicConfig("alerts", "broadcast"),
    TopicConfig("live-events", "broadcast", "ephemeral"),
])
print(client.list_topics())

Existing Kafka senders can keep send(topic, value) / flush():

# from kafka import KafkaProducer
from cangling_broker import KafkaProducer

producer = KafkaProducer(bootstrap_servers="127.0.0.1:7500")
producer.send(topic, msg)
producer.flush()

# consume
python python/examples/consumer.py --broker 127.0.0.1:7500 --topic cangling-test --name py-s0 --token change-me

# produce
python python/examples/producer.py --broker 127.0.0.1:7500 --topic cangling-test --text hello --count 1 --token change-me

Publish to PyPI

CI on tag v* builds the package and uploads with pypa/gh-action-pypi-publish. Set repository secret PYPI_API_TOKEN.

cd python
python generate_proto.py
python -m build

Release files for cangling-broker 0.1.57

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for cangling-broker 0.1.57
File	Size	Uploaded
cangling_broker-0.1.57.tar.gz	15.0 kB	Sep 26, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for cangling-broker 0.1.57
File	Interpreter	ABI	Platform	Reset
cangling_broker-0.1.57-py3-none-any.whl 15.5 kB Sep 26, 2026	Python 3	none	any	Details

Total release size: 30.4 kB

Release files / cangling_broker-0.1.57.tar.gz

Download URL	cangling_broker-0.1.57.tar.gz
Size	15.0 kB
Tags	Source
SHA-256 checksum How to use checksums	`a6459a2f4fe61516adbfda5da65df4ae06bac467bc2ca9418d8985fe8388d0fc`
BLAKE2b-256 checksum How to use checksums	`a19b4d86aaf05a53fee827eecec1af758f19cc488b970dfad8dc5192f36e28ae`
Upload date	Sep 26, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.13.14`

Release files / cangling_broker-0.1.57-py3-none-any.whl

Download URL	cangling_broker-0.1.57-py3-none-any.whl
Size	15.5 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`4b343b7f2441ad9dbeb08275760489703351314e3c514b2f86912a7a1691322f`
BLAKE2b-256 checksum How to use checksums	`9073ade22fb49976c4c19404195570af34e9abfe3e2949b4c33b6b803e6a7a5d`
Upload date	Sep 26, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.13.14`