# CallAwsServiceCrossRegionJsonPathProps

Properties for calling an AWS service's API action using JSONPath from your state machine across regions.

Extends: CallAwsServiceCrossRegionJsonPathProps
Extends: TaskStateJsonPathBaseProps

- Source: [`aws-stepfunctions-tasks/lib/lambda/call-aws-service-cross-region.ts`](https://github.com/aws/aws-cdk/blob/v2.274.0/packages/aws-cdk-lib/aws-stepfunctions-tasks/lib/lambda/call-aws-service-cross-region.ts#L102)
- Type last changed: v2.178.0 · 6 Feb 2025

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as cdk from 'aws-cdk-lib';
import { aws_iam as iam } from 'aws-cdk-lib';
import { aws_stepfunctions as stepfunctions } from 'aws-cdk-lib';
import { aws_stepfunctions_tasks as stepfunctions_tasks } from 'aws-cdk-lib';

declare const assign: any;
declare const parameters: any;
declare const policyStatement: iam.PolicyStatement;
declare const resultSelector: any;
declare const taskRole: stepfunctions.TaskRole;
declare const timeout: stepfunctions.Timeout;
const callAwsServiceCrossRegionJsonPathProps: stepfunctions_tasks.CallAwsServiceCrossRegionJsonPathProps = {
  action: 'action',
  iamResources: ['iamResources'],
  region: 'region',
  service: 'service',

  // the properties below are optional
  additionalIamStatements: [policyStatement],
  assign: {
    assignKey: assign,
  },
  comment: 'comment',
  credentials: {
    role: taskRole,
  },
  endpoint: 'endpoint',
  heartbeat: cdk.Duration.minutes(30),
  heartbeatTimeout: timeout,
  iamAction: 'iamAction',
  inputPath: 'inputPath',
  integrationPattern: stepfunctions.IntegrationPattern.REQUEST_RESPONSE,
  outputPath: 'outputPath',
  parameters: {
    parametersKey: parameters,
  },
  queryLanguage: stepfunctions.QueryLanguage.JSON_PATH,
  resultPath: 'resultPath',
  resultSelector: {
    resultSelectorKey: resultSelector,
  },
  retryOnServiceExceptions: false,
  stateName: 'stateName',
  taskTimeout: timeout,
  timeout: cdk.Duration.minutes(30),
};
```

## Properties

- `action`: string (required) — The API action to call.

  Use camelCase.

- `additionalIamStatements`: [PolicyStatement](/cdk/api/v2/docs/aws-cdk-lib.aws_iam.PolicyStatement.html)[] — Additional IAM statements that will be added to the state machine role's policy.

  **Default:** no additional statements are added

  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.

- `assign`: { [key: string]: any } — Workflow variables to store in this step.

  **Default:** Not assign variables

  Using workflow variables, you can store data in a step and retrieve that data in future steps.

- `comment`: string — A comment describing this state.

  **Default:** No comment

- `credentials`: [Credentials](/cdk/api/v2/docs/aws-cdk-lib.aws_stepfunctions.Credentials.html) — Credentials for an IAM Role that the State Machine assumes for executing the task.

  **Default:** None (Task is executed using the State Machine's execution role)

  This enables cross-account resource invocations.

- `endpoint`: string — The AWS API endpoint.

  **Default:** Do not override API endpoint.

  Be aware that if you set this to a value from the Step Functions state
  (e.g. `sfn.JsonPath.stringAt('$.endpoint')`), the endpoint is controlled
  at runtime by whoever can start the state machine execution. This could
  allow them to redirect the authenticated AWS API call to a server they
  control, allowing them to intercept and replay that specific API call.

- `heartbeat`: [Duration](/cdk/api/v2/docs/aws-cdk-lib.Duration.html) = None — use `heartbeatTimeout`

- `heartbeatTimeout`: [Timeout](/cdk/api/v2/docs/aws-cdk-lib.aws_stepfunctions.Timeout.html) = None — Timeout for the heartbeat.

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

- `iamAction`: string = service:action — The action for the IAM statement that will be added to the Lambda function 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`.

  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`.

- `iamResources`: string[] (required) — The resources for the IAM statement that will be added to the Lambda function role's policy to allow the state machine to make the API call.

- `inputPath`: string = $ — 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`: [IntegrationPattern](/cdk/api/v2/docs/aws-cdk-lib.aws_stepfunctions.IntegrationPattern.html) — AWS Step Functions integrates with services directly in the Amazon States Language.

  **Default:** `IntegrationPattern.REQUEST_RESPONSE` for most tasks. `IntegrationPattern.RUN_JOB` for the following exceptions: `BatchSubmitJob`, `EmrAddStep`, `EmrCreateCluster`, `EmrTerminationCluster`, and `EmrContainersStartJobRun`.

  You can control these AWS services using service integration patterns.

  Depending on the AWS Service, the Service Integration Pattern availability will vary.

- `outputPath`: string = $ — JSONPath expression to select part of the state to be the output to this state.

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

- `parameters`: { [key: string]: any } — Parameters for the API action call in AWS SDK for JavaScript v3 format.

  **Default:** no parameters

- `queryLanguage`: [QueryLanguage](/cdk/api/v2/docs/aws-cdk-lib.aws_stepfunctions.QueryLanguage.html) = JSONPath — The name of the query language used by the state.

  If the state does not contain a `queryLanguage` field,
  then it will use the query language specified in the top-level `queryLanguage` field.

- `region`: string (required) — The AWS region to call this AWS API for.

  ```ts
  'us-east-1'
  ```

- `resultPath`: string = $ — 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`: { [key: string]: any } = 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.

- `retryOnServiceExceptions`: boolean = true — Whether to retry on the backend Lambda service exceptions.

  This handles `Lambda.ServiceException`, `Lambda.AWSLambdaException`,
  `Lambda.SdkClientException`, and `Lambda.ClientExecutionTimeoutException`
  with an interval of 2 seconds, a back-off rate
  of 2 and 6 maximum attempts.

- `service`: string (required) — The AWS service to call in AWS SDK for JavaScript v3 format.

  ```ts
  's3'
  ```

- `stateName`: string — Optional name for this state.

  **Default:** The construct ID will be used as state name

- `taskTimeout`: [Timeout](/cdk/api/v2/docs/aws-cdk-lib.aws_stepfunctions.Timeout.html) = None — Timeout for the task.

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

- `timeout`: [Duration](/cdk/api/v2/docs/aws-cdk-lib.Duration.html) = None — use `taskTimeout`