createFeatureGroup method

Future<CreateFeatureGroupResponse> createFeatureGroup({ required String eventTimeFeatureName, required List<FeatureDefinition> featureDefinitions, required String featureGroupName, required String recordIdentifierFeatureName, String? description, OfflineStoreConfig? offlineStoreConfig, OnlineStoreConfig? onlineStoreConfig, String? roleArn, List<Tag>? tags, ThroughputConfig? throughputConfig, })

Create a new FeatureGroup. A FeatureGroup is a group of Features defined in the FeatureStore to describe a Record.

The FeatureGroup defines the schema and features contained in the FeatureGroup. A FeatureGroup definition is composed of a list of Features, a RecordIdentifierFeatureName, an EventTimeFeatureName and configurations for its OnlineStore and OfflineStore. Check Amazon Web Services service quotas to see the FeatureGroups quota for your Amazon Web Services account.

Note that it can take approximately 10-15 minutes to provision an OnlineStore FeatureGroup with the InMemory StorageType.

May throw ResourceInUse. May throw ResourceLimitExceeded.

Parameter eventTimeFeatureName : The name of the feature that stores the EventTime of a Record in a FeatureGroup.

An EventTime is a point in time when a new event occurs that corresponds to the creation or update of a Record in a FeatureGroup. All Records in the FeatureGroup must have a corresponding EventTime.

An EventTime can be a String or Fractional.

• Fractional: EventTime feature values must be a Unix timestamp in seconds.
• String: EventTime feature values must be an ISO-8601 string in the format. The following formats are supported yyyy-MM-dd'T'HH:mm:ssZ and yyyy-MM-dd'T'HH:mm:ss.SSSZ where yyyy, MM, and dd represent the year, month, and day respectively and HH, mm, ss, and if applicable, SSS represent the hour, month, second and milliseconds respsectively. 'T' and Z are constants.

Parameter featureDefinitions : A list of Feature names and types. Name and Type is compulsory per Feature.

Valid feature FeatureTypes are Integral, Fractional and String.

FeatureNames cannot be any of the following: is_deleted, write_time, api_invocation_time

You can create up to 2,500 FeatureDefinitions per FeatureGroup.

Parameter featureGroupName : The name of the FeatureGroup. The name must be unique within an Amazon Web Services Region in an Amazon Web Services account.

The name:

• Must start with an alphanumeric character.
• Can only include alphanumeric characters, underscores, and hyphens. Spaces are not allowed.

Parameter recordIdentifierFeatureName : The name of the Feature whose value uniquely identifies a Record defined in the FeatureStore. Only the latest record per identifier value will be stored in the OnlineStore. RecordIdentifierFeatureName must be one of feature definitions' names.

You use the RecordIdentifierFeatureName to access data in a FeatureStore.

This name:

• Must start with an alphanumeric character.
• Can only contains alphanumeric characters, hyphens, underscores. Spaces are not allowed.

Parameter description : A free-form description of a FeatureGroup.

Parameter offlineStoreConfig : Use this to configure an OfflineFeatureStore. This parameter allows you to specify:

• The Amazon Simple Storage Service (Amazon S3) location of an OfflineStore.
• A configuration for an Amazon Web Services Glue or Amazon Web Services Hive data catalog.
• An KMS encryption key to encrypt the Amazon S3 location used for OfflineStore. If KMS encryption key is not specified, by default we encrypt all data at rest using Amazon Web Services KMS key. By defining your bucket-level key for SSE, you can reduce Amazon Web Services KMS requests costs by up to 99 percent.
• Format for the offline store table. Supported formats are Glue (Default) and Apache Iceberg.

To learn more about this parameter, see OfflineStoreConfig.

Parameter onlineStoreConfig : You can turn the OnlineStore on or off by specifying True for the EnableOnlineStore flag in OnlineStoreConfig.

You can also include an Amazon Web Services KMS key ID (KMSKeyId) for at-rest encryption of the OnlineStore.

The default value is False.

Parameter roleArn : The Amazon Resource Name (ARN) of the IAM execution role used to persist data into the OfflineStore if an OfflineStoreConfig is provided.

Parameter tags : Tags used to identify Features in each FeatureGroup.

Implementation

Future<CreateFeatureGroupResponse> createFeatureGroup({
  required String eventTimeFeatureName,
  required List<FeatureDefinition> featureDefinitions,
  required String featureGroupName,
  required String recordIdentifierFeatureName,
  String? description,
  OfflineStoreConfig? offlineStoreConfig,
  OnlineStoreConfig? onlineStoreConfig,
  String? roleArn,
  List<Tag>? tags,
  ThroughputConfig? throughputConfig,
}) async {
  final headers = <String, String>{
    'Content-Type': 'application/x-amz-json-1.1',
    'X-Amz-Target': 'SageMaker.CreateFeatureGroup'
  };
  final jsonResponse = await _protocol.send(
    method: 'POST',
    requestUri: '/',
    exceptionFnMap: _exceptionFns,
    // TODO queryParams
    headers: headers,
    payload: {
      'EventTimeFeatureName': eventTimeFeatureName,
      'FeatureDefinitions': featureDefinitions,
      'FeatureGroupName': featureGroupName,
      'RecordIdentifierFeatureName': recordIdentifierFeatureName,
      if (description != null) 'Description': description,
      if (offlineStoreConfig != null)
        'OfflineStoreConfig': offlineStoreConfig,
      if (onlineStoreConfig != null) 'OnlineStoreConfig': onlineStoreConfig,
      if (roleArn != null) 'RoleArn': roleArn,
      if (tags != null) 'Tags': tags,
      if (throughputConfig != null) 'ThroughputConfig': throughputConfig,
    },
  );

  return CreateFeatureGroupResponse.fromJson(jsonResponse.body);
}