Adds the specified targets to the specified rule, or updates the targets if they're already associated with the rule.
Targets are the resources that are invoked when a rule is triggered.
You can configure the following as targets in EventBridge:
- EC2 instances
- SSM Run Command
- SSM Automation
- AWS Lambda functions
- Data streams in Amazon Kinesis Data Streams
- Data delivery streams in Amazon Kinesis Data Firehose
- Amazon ECS tasks
- AWS Step Functions state machines
- AWS Batch jobs
- AWS CodeBuild projects
- Pipelines in AWS CodePipeline
- Amazon Inspector assessment templates
- Amazon SNS topics
- Amazon SQS queues, including FIFO queues
- The default event bus of another AWS account
Creating rules with built-in targets is supported only on the AWS Management Console. The built-in targets are
EC2 CreateSnapshot API call
,
EC2 RebootInstances API call
,
EC2 StopInstances API call
, and
EC2 TerminateInstances API call
.
For some target types,
PutTargets
provides target-specific parameters. If the target is a Kinesis data stream, you can optionally specify which shard the event goes to by using the
KinesisParameters
argument. To invoke a command on multiple EC2 instances with one rule, you can use the
RunCommandParameters
field.
To be able to make API calls against the resources that you own, Amazon EventBridge needs the appropriate permissions. For AWS Lambda and Amazon SNS resources, EventBridge relies on resource-based policies. For EC2 instances, Kinesis data streams, and AWS Step Functions state machines, EventBridge relies on IAM roles that you specify in the
RoleARN
argument in
PutTargets
. For more information, see
Authentication and Access Control in the
Amazon EventBridge User Guide.
If another AWS account is in the same Region and has granted you permission (using
PutPermission
), you can send events to that account. Set that account's event bus as a target of the rules in your account. To send the matched events to the other account, specify that account's event bus as the
Arn
value when you run
PutTargets
. If your account sends events to another account, your account is charged for each sent event. Each event sent to another account is charged as a custom event. The account receiving the event isn't charged. For more information, see
Amazon EventBridge Pricing.
If you're setting an event bus in another account as the target and that account granted permission to your account through an organization instead of directly by the account ID, you must specify a
RoleArn
with proper permissions in the
Target
structure. For more information, see
Sending and Receiving Events Between AWS Accounts in the
Amazon EventBridge User Guide.
For more information about enabling cross-account events, see
PutPermission.
Input
,
InputPath
, and
InputTransformer
are mutually exclusive and optional parameters of a target. When a rule is triggered due to a matched event:
- If none of the following arguments are specified for a target, the entire event is passed to the target in JSON format (unless the target is Amazon EC2 Run Command or Amazon ECS task, in which case nothing from the event is passed to the target).
- If
Input
is specified in the form of valid JSON, then the matched event is overridden with this constant. - If
InputPath
is specified in the form of JSONPath (for example, $.detail
), only the part of the event specified in the path is passed to the target (for example, only the detail part of the event is passed). - If
InputTransformer
is specified, one or more specified JSONPaths are extracted from the event and used as values in a template that you specify as the input to the target.
When you specify
InputPath
or
InputTransformer
, you must use JSON dot notation, not bracket notation.
When you add targets to a rule and the associated rule triggers soon after, new or updated targets might not be immediately invoked. Allow a short period of time for changes to take effect.
This action can partially fail if too many requests are made at the same time. If that happens,
FailedEntryCount
is nonzero in the response, and each entry in
FailedEntries
provides the ID of the failed target and the error code.