AWS::IoT::TopicRule DynamoDBAction

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.

Syntax

To declare this entity in your AWS CloudFormation template, use the following syntax:

{
  "HashKeyField" : String,
  "HashKeyType" : String,
  "HashKeyValue" : String,
  "PayloadField" : String,
  "RangeKeyField" : String,
  "RangeKeyType" : String,
  "RangeKeyValue" : String,
  "RoleArn" : String,
  "TableName" : String
}

  HashKeyField: String
  HashKeyType: String
  HashKeyValue: String
  PayloadField: String
  RangeKeyField: String
  RangeKeyType: String
  RangeKeyValue: String
  RoleArn: String
  TableName: String

Properties