DeadLetterConfig - AWS Serverless Application Model
SyntaxPropertiesExamples

DeadLetterConfig

The object used to specify the Amazon Simple Queue Service (Amazon SQS) queue where EventBridge sends events after a failed target invocation. Invocation can fail, for example, when sending an event to a Lambda function that doesn’t exist, or insufficient permissions to invoke the Lambda function. For more information, see Event retry policy and using dead-letter queues in the Amazon EventBridge User Guide.

Note

The AWS::Serverless::Function resource type has a similar data type, DeadLetterQueue which handles failures that occur after successful invocation of the target Lambda function. Examples of this type of failure include Lambda throttling, or errors returned by the Lambda target function. For more information about the function DeadLetterQueue property, see Dead-letter queues in the AWS Lambda Developer Guide.

Syntax

To declare this entity in your AWS Serverless Application Model (AWS SAM) template, use the following syntax.

YAML

  Arn: String
  QueueLogicalId: String
  Type: String

Properties

Arn

The Amazon Resource Name (ARN) of the Amazon SQS queue specified as the target for the dead-letter queue.

Note

Specify either the Type property or Arn property, but not both.

Type: String

Required: No

CloudFormation compatibility: This property is passed directly to the Arn property of the AWS::Events::Rule DeadLetterConfig data type.

QueueLogicalId

The custom name of the dead letter queue that AWS SAM creates if Type is specified.

Note

If the Type property is not set, this property is ignored.

Type: String

Required: No

CloudFormation compatibility: This property is unique to AWS SAM and doesn't have an CloudFormation equivalent.

Type

The type of the queue. When this property is set, AWS SAM automatically creates a dead-letter queue and attaches necessary resource-based policy to grant permission to rule resource to send events to the queue.

Note

Specify either the Type property or Arn property, but not both.

Valid values: SQS

Type: String

Required: No

CloudFormation compatibility: This property is unique to AWS SAM and doesn't have an CloudFormation equivalent.

Examples

DeadLetterConfig

DeadLetterConfig

YAML

DeadLetterConfig:
  Type: SQS
  QueueLogicalId: MyDLQ