snowflake-kafka-connector

April 15, 2026 · View on GitHub

The Snowflake Kafka Connector is a plugin for Apache Kafka Connect. It ingests data from a Kafka Topic into a Snowflake Table.

Official documentation for the Snowflake Kafka Connector

Contributing

Guidelines

The following requirements must be met before you can merge your PR:

Tests: all test suites must pass, see the test README
Formatting: Java sources must pass Google Java Format (./format.sh) and Python test code must pass ruff check + ruff format --check. The pre-commit hook runs both automatically.
CLA: all contributers must sign the Snowflake CLA. This is a one time signature, please provide your email so we can work with you to get this signed after you open a PR.

Thank you for contributing! We will review and approve PRs as soon as we can.

Pre-commit hook

A pre-commit hook is provided in .githooks/ that enforces the same formatting checks as CI. Python formatting is skipped when ruff is not available. To enable the hook:

git config core.hooksPath .githooks

Unit tests

mvn package -Dgpg.skip=true

Runs all test files in src/test that do not end with IT. Requires SNOWFLAKE_CREDENTIAL_FILE to be set.

Integration tests

mvn verify -Dgpg.skip=true

Runs all test files in src/test, including unit tests.

End-to-end tests

Refer to test/README.md.

Third party licenses

Custom license handling process is run during build to meet legal standards.

License files are copied directly from JAR if present in one of the following locations: META-INF/LICENSE.txt, META-INF/LICENSE, META-INF/LICENSE.md
If no license file is found then license must be manually added to process_licenses.py script in order to pass build