aws-cdk-lib.aws_stepfunctions_tasks.CallAwsServiceProps

interface CallAwsServiceProps

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.NETAmazon.CDK.AWS.StepFunctions.Tasks.CallAwsServiceProps
Gogithub.com/aws/aws-cdk-go/awscdk/v2/awsstepfunctionstasks#CallAwsServiceProps
Javasoftware.amazon.awscdk.services.stepfunctions.tasks.CallAwsServiceProps
Pythonaws_cdk.aws_stepfunctions_tasks.CallAwsServiceProps
TypeScript (source)aws-cdk-lib » aws_stepfunctions_tasks » CallAwsServiceProps

Properties for calling an AWS service's API action from your state machine.

See also: https://docs.aws.amazon.com/step-functions/latest/dg/supported-services-awssdk.html

Example

const detectLabels = new tasks.CallAwsService(this, 'DetectLabels', {
  service: 'rekognition',
  action: 'detectLabels',
  iamResources: ['*'],
  additionalIamStatements: [
    new iam.PolicyStatement({
      actions: ['s3:getObject'],
      resources: ['arn:aws:s3:::my-bucket/*'],
    }),
  ],
});

Properties

NameTypeDescription
actionstringThe API action to call.
iamResourcesstring[]The resources for the IAM statement that will be added to the state machine role's policy to allow the state machine to make the API call.
servicestringThe AWS service to call.
additionalIamStatements?PolicyStatement[]Additional IAM statements that will be added to the state machine role's policy.
comment?stringAn optional description for this state.
credentials?CredentialsCredentials for an IAM Role that the State Machine assumes for executing the task.
heartbeat?⚠️DurationTimeout for the heartbeat.
heartbeatTimeout?TimeoutTimeout for the heartbeat.
iamAction?stringThe action for the IAM statement that will be added to the state machine role's policy to allow the state machine to make the API call.
inputPath?stringJSONPath expression to select part of the state to be the input to this state.
integrationPattern?IntegrationPatternAWS Step Functions integrates with services directly in the Amazon States Language.
outputPath?stringJSONPath expression to select select a portion of the state output to pass to the next state.
parameters?{ [string]: any }Parameters for the API action call.
resultPath?stringJSONPath expression to indicate where to inject the state's output.
resultSelector?{ [string]: any }The JSON that will replace the state's raw result and become the effective result before ResultPath is applied.
taskTimeout?TimeoutTimeout for the task.
timeout?⚠️DurationTimeout for the task.

action

Type: string

The API action to call.

Use camelCase.


iamResources

Type: string[]

The resources for the IAM statement that will be added to the state machine role's policy to allow the state machine to make the API call.

By default the action for this IAM statement will be service:action.


service

Type: string

The AWS service to call.

See also: https://docs.aws.amazon.com/step-functions/latest/dg/supported-services-awssdk.html


additionalIamStatements?

Type: PolicyStatement[] (optional, default: no additional statements are added)

Additional IAM statements that will be added to the state machine role's policy.

Use in the case where the call requires more than a single statement to be executed, e.g. rekognition:detectLabels requires also S3 permissions to read the object on which it must act.


comment?

Type: string (optional, default: No comment)

An optional description for this state.


credentials?

Type: Credentials (optional, default: None (Task is executed using the State Machine's execution role))

Credentials for an IAM Role that the State Machine assumes for executing the task.

This enables cross-account resource invocations.

See also: https://docs.aws.amazon.com/step-functions/latest/dg/concepts-access-cross-acct-resources.html


heartbeat?⚠️

⚠️ Deprecated: use heartbeatTimeout

Type: Duration (optional, default: None)

Timeout for the heartbeat.


heartbeatTimeout?

Type: Timeout (optional, default: None)

Timeout for the heartbeat.

[disable-awslint:duration-prop-type] is needed because all props interface in aws-stepfunctions-tasks extend this interface


iamAction?

Type: string (optional, default: service:action)

The action for the IAM statement that will be added to the state machine role's policy to allow the state machine to make the API call.

Use in the case where the IAM action name does not match with the API service/action name, e.g. s3:ListBuckets requires s3:ListAllMyBuckets.


inputPath?

Type: string (optional, default: The entire task input (JSON path '$'))

JSONPath expression to select part of the state to be the input to this state.

May also be the special value JsonPath.DISCARD, which will cause the effective input to be the empty object {}.


integrationPattern?

Type: IntegrationPattern (optional, default: IntegrationPattern.REQUEST_RESPONSE for most tasks. IntegrationPattern.RUN_JOB for the following exceptions: BatchSubmitJob, EmrAddStep, EmrCreateCluster, EmrTerminationCluster, and EmrContainersStartJobRun.)

AWS Step Functions integrates with services directly in the Amazon States Language.

You can control these AWS services using service integration patterns

See also: https://docs.aws.amazon.com/step-functions/latest/dg/connect-to-resource.html#connect-wait-token


outputPath?

Type: string (optional, default: The entire JSON node determined by the state input, the task result, and resultPath is passed to the next state (JSON path '$'))

JSONPath expression to select select a portion of the state output to pass to the next state.

May also be the special value JsonPath.DISCARD, which will cause the effective output to be the empty object {}.


parameters?

Type: { [string]: any } (optional, default: no parameters)

Parameters for the API action call.

Use PascalCase for the parameter names.


resultPath?

Type: string (optional, default: Replaces the entire input with the result (JSON path '$'))

JSONPath expression to indicate where to inject the state's output.

May also be the special value JsonPath.DISCARD, which will cause the state's input to become its output.


resultSelector?

Type: { [string]: any } (optional, default: None)

The JSON that will replace the state's raw result and become the effective result before ResultPath is applied.

You can use ResultSelector to create a payload with values that are static or selected from the state's raw result.

See also: https://docs.aws.amazon.com/step-functions/latest/dg/input-output-inputpath-params.html#input-output-resultselector


taskTimeout?

Type: Timeout (optional, default: None)

Timeout for the task.

[disable-awslint:duration-prop-type] is needed because all props interface in aws-stepfunctions-tasks extend this interface


timeout?⚠️

⚠️ Deprecated: use taskTimeout

Type: Duration (optional, default: None)

Timeout for the task.