Schedule - Amazon Serverless Application Model
SyntaxPropertiesExamples
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Schedule

The object describing a Schedule event source type, which sets your state machine as the target of an EventBridge rule that triggers on a schedule. For more information, see What Is Amazon EventBridge? in the Amazon EventBridge User Guide.

Amazon Serverless Application Model (Amazon SAM) generates an AWS::Events::Rule resource when this event type is set.

Syntax

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

YAML

  DeadLetterConfig: DeadLetterConfig
  Description: String
  Enabled: Boolean
  Input: String
  Name: String
  RetryPolicy: RetryPolicy
  RoleArn: String
  Schedule: String
  State: String
  Target: Target

Properties

DeadLetterConfig

Configure 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 when EventBridge has 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.

Type: DeadLetterConfig

Required: No

Amazon CloudFormation compatibility: This property is similar to the DeadLetterConfig property of the AWS::Events::Rule Target data type. The Amazon SAM version of this property includes additional subproperties, in case you want Amazon SAM to create the dead-letter queue for you.

Description

A description of the rule.

Type: String

Required: No

Amazon CloudFormation compatibility: This property is passed directly to the Description property of an AWS::Events::Rule resource.

Enabled

Indicates whether the rule is enabled.

To disable the rule, set this property to false.

Note

Specify either the Enabled or State property, but not both.

Type: Boolean

Required: No

Amazon CloudFormation compatibility: This property is similar to the State property of an AWS::Events::Rule resource. If this property is set to true then Amazon SAM passes ENABLED, otherwise it passes DISABLED.

Input

Valid JSON text passed to the target. If you use this property, nothing from the event text itself is passed to the target.

Type: String

Required: No

Amazon CloudFormation compatibility: This property is passed directly to the Input property of an AWS::Events::Rule Target resource.

Name

The name of the rule. If you don't specify a name, Amazon CloudFormation generates a unique physical ID and uses that ID for the rule name.

Type: String

Required: No

Amazon CloudFormation compatibility: This property is passed directly to the Name property of an AWS::Events::Rule resource.

RetryPolicy

A RetryPolicy object that includes information about the retry policy settings. For more information, see Event retry policy and using dead-letter queues in the Amazon EventBridge User Guide.

Type: RetryPolicy

Required: No

Amazon CloudFormation compatibility: This property is passed directly to the RetryPolicy property of the AWS::Events::Rule Target data type.

RoleArn

The ARN of the IAM role that EventBridge Scheduler will use for the target when the schedule is invoked.

Type: RoleArn

Required: No. If not provided, a new role will be created and used.

Amazon CloudFormation compatibility: This property is passed directly to the RoleArn property of the AWS::Scheduler::Schedule Target data type.

Schedule

The scheduling expression that determines when and how often the rule runs. For more information, see Schedule Expressions for Rules.

Type: String

Required: Yes

Amazon CloudFormation compatibility: This property is passed directly to the ScheduleExpression property of an AWS::Events::Rule resource.

State

The state of the rule.

Accepted values: DISABLED | ENABLED

Note

Specify either the Enabled or State property, but not both.

Type: String

Required: No

Amazon CloudFormation compatibility: This property is passed directly to the State property of an AWS::Events::Rule resource.

Target

The Amazon resource that EventBridge invokes when a rule is triggered. You can use this property to specify the logical ID of the target. If this property is not specified, then Amazon SAM generates the logical ID of the target.

Type: Target

Required: No

Amazon CloudFormation compatibility: This property is similar to the Targets property of an AWS::Events::Rule resource. The Amazon SAM version of this property only allows you to specify the logical ID of a single target.

Examples

CloudWatch Schedule Event

CloudWatch Schedule Event Example

YAML

CWSchedule:
  Type: Schedule
  Properties:
    Schedule: 'rate(1 minute)'
    Name: TestSchedule
    Description: test schedule
    Enabled: false