Adding context attributes - EventBridge Scheduler

Adding context attributes

You can include any of the following special keywords in your target payload. EventBridge Scheduler will replace each keyword with its respective value and deliver it to the target.

  • <aws.scheduler.schedule-arn> – The ARN of the schedule.

  • <aws.scheduler.scheduled-time> – The time you specified for the schedule to invoke its target, for example, 2022-03-22T18:59:43Z.

  • <aws.scheduler.execution-id> – The unique ID that EventBridge Scheduler assigns for each attempted invocation of a target, for example, d32c5kddcf5bb8c3.

  • <aws.scheduler.attempt-number> – A counter that identifies the attempt number for the current invocation, for example, 1.

This example shows creating a schedule that fires every five minutes, and invokes the Amazon SQS SendMessage operation as a universal target. The message body includes the value for schedule-time.

Example AWS CLI

$ aws scheduler create-schedule --name your-schedule \ --expression 'rate(5 minutes)' \ --target '{"RoleArn": "ROLE_ARN", \ "Arn": "arn:aws:scheduler:::aws-sdk:sqs:sendMessage", \ "Input": "{\"MessageBody\":\"<aws.scheduler.scheduled-time>\",\"QueueUrl\":\"\"}"}' \ --flexible-time-window '{ "Mode": "OFF"}'

Example Python SDK

import boto3 scheduler = boto3.client('scheduler') sqs_universal= { "RoleArn": "<ROLE_ARN>", "Arn": "arn:aws:scheduler:::aws-sdk:sqs:sendMessage", "Input": "{\"MessageBody\":\"<aws.scheduler.scheduled-time>\",\"QueueUrl\":\"\"}" } flex_window = { "Mode": "OFF" } scheduler.update_schedule(Name="your-schedule", ScheduleExpression="rate(5 minutes)", Target=sqs_universal, FlexibleTimeWindow=flex_window)