interface DynamoDBActionProperty

Language	Type name
.NET	`Amazon.CDK.Mixins.Preview.AWS.IoT.Mixins.CfnTopicRulePropsMixin.DynamoDBActionProperty`
Go	`github.com/aws/aws-cdk-go/awscdkmixinspreview/v2/awsiot/mixins#CfnTopicRulePropsMixin_DynamoDBActionProperty`
Java	`software.amazon.awscdk.mixins.preview.services.iot.mixins.CfnTopicRulePropsMixin.DynamoDBActionProperty`
Python	`aws_cdk.mixins_preview.aws_iot.mixins.CfnTopicRulePropsMixin.DynamoDBActionProperty`
TypeScript	`@aws-cdk/mixins-preview` » `aws_iot` » `mixins` » `CfnTopicRulePropsMixin` » `DynamoDBActionProperty`

Describes an action to write to a DynamoDB table.

The tableName , hashKeyField , and rangeKeyField values must match the values used when you created the table.

The hashKeyValue and rangeKeyvalue fields use a substitution template syntax. These templates provide data at runtime. The syntax is as follows: ${ sql-expression }.

You can specify any valid expression in a WHERE or SELECT clause, including JSON properties, comparisons, calculations, and functions. For example, the following field uses the third level of the topic:

"hashKeyValue": "${topic(3)}"

The following field uses the timestamp:

"rangeKeyValue": "${timestamp()}"

For more information, see DynamoDBv2 Action in the AWS IoT Developer Guide .

See also: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-iot-topicrule-dynamodbaction.html

Example

// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { mixins as iot_mixins } from '@aws-cdk/mixins-preview/aws-iot';
const dynamoDBActionProperty: iot_mixins.CfnTopicRulePropsMixin.DynamoDBActionProperty = {
  hashKeyField: 'hashKeyField',
  hashKeyType: 'hashKeyType',
  hashKeyValue: 'hashKeyValue',
  payloadField: 'payloadField',
  rangeKeyField: 'rangeKeyField',
  rangeKeyType: 'rangeKeyType',
  rangeKeyValue: 'rangeKeyValue',
  roleArn: 'roleArn',
  tableName: 'tableName',
};

Properties

Name	Type	Description
hashKeyField?	`string`	The hash key name.
hashKeyType?	`string`	The hash key type.
hashKeyValue?	`string`	The hash key value.
payloadField?	`string`	The action payload.
rangeKeyField?	`string`	The range key name.
rangeKeyType?	`string`	The range key type.
rangeKeyValue?	`string`	The range key value.
roleArn?	`string`	The ARN of the IAM role that grants access to the DynamoDB table.
tableName?	`string`	The name of the DynamoDB table.