The AWS Lambda batch materialization engine is considered alpha status. It relies on the offline store to output feature values to S3 via to_remote_storage, and then loads them into the online store.

See LambdaMaterializationEngineConfig for configuration options.

See also Dockerfile for a Dockerfile that can be used below with materialization_image.

{% code title="feature_store.yaml" %}

...
offline_store:
  type: snowflake.offline
...
batch_engine:
  type: lambda
  lambda_role: [your iam role]
  materialization_image: [image uri of above Docker image]

{% endcode %}