# S3ReferenceDataSourceProperty

For an SQL-based Amazon Kinesis Data Analytics application, identifies the Amazon S3 bucket and object that contains the reference data.

A Kinesis Data Analytics application loads reference data only once. If the data changes, you call the [UpdateApplication](https://docs.aws.amazon.com/managed-flink/latest/apiv2/API_UpdateApplication.html) operation to trigger reloading of data into your application.

- Source: Generated code
- Type last changed: v2.93.0 · 23 Aug 2023

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_kinesisanalyticsv2 as kinesisanalyticsv2 } from 'aws-cdk-lib';
const s3ReferenceDataSourceProperty: kinesisanalyticsv2.CfnApplicationReferenceDataSource.S3ReferenceDataSourceProperty = {
  bucketArn: 'bucketArn',
  fileKey: 'fileKey',
};
```

## Properties

- `bucketArn`: string (required) — The Amazon Resource Name (ARN) of the S3 bucket.

- `fileKey`: string (required) — The object key name containing the reference data.