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Showing content from https://docs.aws.amazon.com/sdkforruby/api/Aws/IoT/Types/DynamoDBAction.html below:

DynamoDBAction — AWS SDK for Ruby V2

You are viewing documentation for version 2 of the AWS SDK for Ruby. Version 3 documentation can be found here.

Inherits:

Struct

• Object
• Struct
• Aws::IoT::Types::DynamoDBAction

show all

Defined in:

(unknown)

When passing DynamoDBAction as input to an Aws::Client method, you can use a vanilla Hash:

{
  table_name: "TableName",   role_arn: "AwsArn",   operation: "DynamoOperation",
  hash_key_field: "HashKeyField",   hash_key_value: "HashKeyValue",   hash_key_type: "STRING",   range_key_field: "RangeKeyField",
  range_key_value: "RangeKeyValue",
  range_key_type: "STRING",   payload_field: "PayloadField",
}

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: ${<i>sql-expression</i>}.

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()}"

Returned by:

• Action#dynamo_db

• #hash_key_field ⇒ String

  The hash key name.

• #hash_key_type ⇒ String

  The hash key type.

• #hash_key_value ⇒ String

  The hash key value.

• #operation ⇒ String

  The type of operation to be performed.

• #payload_field ⇒ String

  The action payload.

• #range_key_field ⇒ String

  The range key name.

• #range_key_type ⇒ String

  The range key type.

• #range_key_value ⇒ String

  The range key value.

• #role_arn ⇒ String

  The ARN of the IAM role that grants access to the DynamoDB table.

• #table_name ⇒ String

  The name of the DynamoDB table.

The hash key type. Valid values are \"STRING\" or \"NUMBER\"

Possible values:

• STRING
• NUMBER

The type of operation to be performed. This follows the substitution template, so it can be $`{operation}`, but the substitution must result in one of the following: INSERT, UPDATE, or DELETE.

The action payload. This name can be customized.

The range key type. Valid values are \"STRING\" or \"NUMBER\"

Possible values:

• STRING
• NUMBER

The ARN of the IAM role that grants access to the DynamoDB table.

The name of the DynamoDB table.

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