onestep-kafka

Kafka connector plugin for onestep.

pip install onestep-kafka

The package registers these YAML resource types through the onestep.resources entry point:

kafka
kafka_topic

Python usage:

from onestep_kafka import KafkaConnector

YAML usage:

resources:
  kafka_main:
    type: kafka
    bootstrap_servers: "${KAFKA_BOOTSTRAP_SERVERS}"

  orders:
    type: kafka_topic
    connector: kafka_main
    topic: orders.events
    group_id: onestep-orders
    batch_size: 100
    poll_timeout_ms: 1000

Delivery semantics

The plugin disables Kafka auto commit and follows onestep's at-least-once contract. Offsets are committed only after processing reaches ack() or a terminal fail().

If a worker sends output to a sink and exits before the Kafka offset commit succeeds, downstream output can be duplicated. Handlers and downstream sinks should be idempotent when duplicates matter.

Metadata

Release files for onestep-kafka 0.1.3

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Source distribution for onestep-kafka 0.1.3
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Table of built distributions (wheels) for onestep-kafka 0.1.3
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onestep_kafka-0.1.3-py3-none-any.whl 8.9 kB Jul 31, 2026 Without provenance	Python 3	none	any	Details

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Release files / onestep_kafka-0.1.3.tar.gz

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Size	12.7 kB
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Release files / onestep_kafka-0.1.3-py3-none-any.whl

Download URL	onestep_kafka-0.1.3-py3-none-any.whl
Size	8.9 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`1db3c44700369caf4f6a647ee1513513665284a2aef41b69d805d499d8435f3c`
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Uploaded via	`twine/7.0.0 CPython/3.13.14`

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