class TaskInput

Language	Type name
.NET	Amazon.CDK.AWS.StepFunctions.TaskInput
Go	github.com/aws/aws-cdk-go/awscdk/v2/awsstepfunctions#TaskInput
Java	software.amazon.awscdk.services.stepfunctions.TaskInput
Python	aws_cdk.aws_stepfunctions.TaskInput
TypeScript (source)	aws-cdk-lib » aws_stepfunctions » TaskInput

Type union for task classes that accept multiple types of payload.

Example

declare const fn: lambda.Function;
new tasks.LambdaInvoke(this, 'Invoke with callback', {
  lambdaFunction: fn,
  integrationPattern: sfn.IntegrationPattern.WAIT_FOR_TASK_TOKEN,
  payload: sfn.TaskInput.fromObject({
    token: sfn.JsonPath.taskToken,
    input: sfn.JsonPath.stringAt('$.someField'),
  }),
});

Properties

Name	Type	Description
type	InputType	type of task input.
value	any	payload for the corresponding input type.

---

type

Type: InputType

type of task input.

---

value

Type: any

payload for the corresponding input type.

It can be a JSON-encoded object, context, data, etc.

Methods

Name	Description
static fromJsonPathAt(path)	Use a part of the execution data or task context as task input.
static fromObject(obj)	Use an object as task input.
static fromText(text)	Use a literal string as task input.

---

static fromJsonPathAt(path)

public static fromJsonPathAt(path: string): TaskInput

Parameters

• path string

Returns

• TaskInput

Use a part of the execution data or task context as task input.

Use this when you want to use a subobject or string from the current state machine execution or the current task context as complete payload to a task.

---

static fromObject(obj)

public static fromObject(obj: { [string]: any }): TaskInput

Parameters

• obj { [string]: any }

Returns

• TaskInput

Use an object as task input.

This object may contain JSON path fields as object values, if desired.

Use sfn.JsonPath.DISCARD in place of null for languages that do not support null (i.e. Python).

---

static fromText(text)

public static fromText(text: string): TaskInput

Parameters

• text string

Returns

• TaskInput

Use a literal string as task input.

This might be a JSON-encoded object, or just a text.