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 0.1.54

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 0.1.54
File	Size	Uploaded
cangling_broker-0.1.54.tar.gz	14.4 kB	Sep 20, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for cangling-broker 0.1.54
File	Interpreter	ABI	Platform	Reset
cangling_broker-0.1.54-py3-none-any.whl 14.9 kB Sep 20, 2026	Python 3	none	any	Details

Total release size: 29.3 kB

Release files / cangling_broker-0.1.54.tar.gz

Download URL	cangling_broker-0.1.54.tar.gz
Size	14.4 kB
Tags	Source
SHA-256 checksum How to use checksums	`bf7450b42884646dc44a5ea802ab34082479242a656598f04916f7ce6438c720`
BLAKE2b-256 checksum How to use checksums	`6326416975323ada82bf4d021ab15c44e125deb5dc6998ece546f274839f4488`
Upload date	Sep 20, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.13.14`

Release files / cangling_broker-0.1.54-py3-none-any.whl

Download URL	cangling_broker-0.1.54-py3-none-any.whl
Size	14.9 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`cbadd63039ccef4409c1f34f8adc290e92c68beb206aa848c6e55f8d20c4b7e8`
BLAKE2b-256 checksum How to use checksums	`09d8ce265eacfa956be6b4f171da0a4cc5005a54ab680e914967fc3f0c98724e`
Upload date	Sep 20, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/7.0.0 CPython/3.13.14`