openapi: 3.0.0
info:
  version: '2016-11-23'
  x-release: v4
  title: 'AWS Step Functions #X Amz Target=AWSStepFunctions.CreateActivity #X Amz Target=AWSStepFunctions.CreateActivity #X Amz Target=AWSStepFunctions.GetActivityTask API'
  description: <fullname>Step Functions</fullname> <p>Step Functions is a service that lets you coordinate the components of distributed applications and microservices using visual workflows.</p> <p>You can use Step Functions to build applications from individual components, each of which performs a discrete function, or <i>task</i>, allowing you to scale and change applications quickly. Step Functions provides a console that helps visualize the components of your application as a series of steps. Step Functions automatically triggers and tracks each step, and retries steps when there are errors, so your application executes predictably and in the right order every time. Step Functions logs the state of each step, so you can quickly diagnose and debug any issues.</p> <p>Step Functions manages operations and underlying infrastructure to ensure your application is available at any scale. You can run tasks on Amazon Web Services, your own servers, or any system that has access to Amazon Web Services. You can access and use Step Functions using the console, the Amazon Web Services SDKs, or an HTTP API. For more information about Step Functions, see the <i> <a href="https://docs.aws.amazon.com/step-functions/latest/dg/welcome.html">Step Functions Developer Guide</a> </i>.</p>
  x-logo:
    url: https://api.apis.guru/v2/cache/logo/https_twitter.com_awscloud_profile_image.png
    backgroundColor: '#FFFFFF'
  termsOfService: https://aws.amazon.com/service-terms/
  contact:
    name: Mike Ralphson
    email: mike.ralphson@gmail.com
    url: https://github.com/mermade/aws2openapi
    x-twitter: PermittedSoc
  license:
    name: Apache 2.0 License
    url: http://www.apache.org/licenses/
  x-providerName: amazonaws.com
  x-serviceName: states
  x-origin:
  - contentType: application/json
    url: https://raw.githubusercontent.com/aws/aws-sdk-js/master/apis/states-2016-11-23.normal.json
    converter:
      url: https://github.com/mermade/aws2openapi
      version: 1.0.0
    x-apisguru-driver: external
  x-apiClientRegistration:
    url: https://portal.aws.amazon.com/gp/aws/developer/registration/index.html?nc2=h_ct
  x-apisguru-categories:
  - cloud
  x-preferred: true
servers:
- url: http://states.{region}.amazonaws.com
  variables:
    region:
      description: The AWS region
      enum:
      - us-east-1
      - us-east-2
      - us-west-1
      - us-west-2
      - us-gov-west-1
      - us-gov-east-1
      - ca-central-1
      - eu-north-1
      - eu-west-1
      - eu-west-2
      - eu-west-3
      - eu-central-1
      - eu-south-1
      - af-south-1
      - ap-northeast-1
      - ap-northeast-2
      - ap-northeast-3
      - ap-southeast-1
      - ap-southeast-2
      - ap-east-1
      - ap-south-1
      - sa-east-1
      - me-south-1
      default: us-east-1
  description: The AWS SFN multi-region endpoint
- url: https://states.{region}.amazonaws.com
  variables:
    region:
      description: The AWS region
      enum:
      - us-east-1
      - us-east-2
      - us-west-1
      - us-west-2
      - us-gov-west-1
      - us-gov-east-1
      - ca-central-1
      - eu-north-1
      - eu-west-1
      - eu-west-2
      - eu-west-3
      - eu-central-1
      - eu-south-1
      - af-south-1
      - ap-northeast-1
      - ap-northeast-2
      - ap-northeast-3
      - ap-southeast-1
      - ap-southeast-2
      - ap-east-1
      - ap-south-1
      - sa-east-1
      - me-south-1
      default: us-east-1
  description: The AWS SFN multi-region endpoint
- url: http://states.{region}.amazonaws.com.cn
  variables:
    region:
      description: The AWS region
      enum:
      - cn-north-1
      - cn-northwest-1
      default: cn-north-1
  description: The AWS SFN endpoint for China (Beijing) and China (Ningxia)
- url: https://states.{region}.amazonaws.com.cn
  variables:
    region:
      description: The AWS region
      enum:
      - cn-north-1
      - cn-northwest-1
      default: cn-north-1
  description: The AWS SFN endpoint for China (Beijing) and China (Ningxia)
security:
- hmac: []
tags:
- name: '#X Amz Target=AWSStepFunctions.GetActivityTask'
paths:
  /#X-Amz-Target=AWSStepFunctions.GetActivityTask:
    parameters:
    - $ref: '#/components/parameters/X-Amz-Content-Sha256'
    - $ref: '#/components/parameters/X-Amz-Date'
    - $ref: '#/components/parameters/X-Amz-Algorithm'
    - $ref: '#/components/parameters/X-Amz-Credential'
    - $ref: '#/components/parameters/X-Amz-Security-Token'
    - $ref: '#/components/parameters/X-Amz-Signature'
    - $ref: '#/components/parameters/X-Amz-SignedHeaders'
    post:
      operationId: GetActivityTask
      description: <p>Used by workers to retrieve a task (with the specified activity ARN) which has been scheduled for execution by a running state machine. This initiates a long poll, where the service holds the HTTP connection open and responds as soon as a task becomes available (i.e. an execution of a task of this type is needed.) The maximum time the service holds on to the request before responding is 60 seconds. If no task is available within 60 seconds, the poll returns a <code>taskToken</code> with a null string.</p> <note> <p>This API action isn't logged in CloudTrail.</p> </note> <important> <p>Workers should set their client side socket timeout to at least 65 seconds (5 seconds higher than the maximum time the service may hold the poll request).</p> <p>Polling with <code>GetActivityTask</code> can cause latency in some implementations. See <a href="https://docs.aws.amazon.com/step-functions/latest/dg/bp-activity-pollers.html">Avoid Latency When Polling for Activity Tasks</a> in the Step Functions Developer Guide.</p> </important>
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetActivityTaskOutput'
        '480':
          description: ActivityDoesNotExist
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ActivityDoesNotExist'
        '481':
          description: ActivityWorkerLimitExceeded
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ActivityWorkerLimitExceeded'
        '482':
          description: InvalidArn
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InvalidArn'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/GetActivityTaskInput'
      parameters:
      - name: X-Amz-Target
        in: header
        required: true
        schema:
          type: string
          enum:
          - AWSStepFunctions.GetActivityTask
      summary: AWS Step Functions - Get Activity Task
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
      tags:
      - '#X Amz Target=AWSStepFunctions.GetActivityTask'
components:
  schemas:
    Arn:
      type: string
      minLength: 1
      maxLength: 256
    ActivityDoesNotExist: {}
    Name:
      type: string
      minLength: 1
      maxLength: 80
    ActivityWorkerLimitExceeded: {}
    GetActivityTaskInput:
      type: object
      required:
      - activityArn
      title: GetActivityTaskInput
      properties:
        activityArn:
          allOf:
          - $ref: '#/components/schemas/Arn'
          - description: The Amazon Resource Name (ARN) of the activity to retrieve tasks from (assigned when you create the task using <a>CreateActivity</a>.)
        workerName:
          allOf:
          - $ref: '#/components/schemas/Name'
          - description: You can provide an arbitrary name in order to identify the worker that the task is assigned to. This name is used when it is logged in the execution history.
    InvalidArn: {}
    TaskToken:
      type: string
      minLength: 1
      maxLength: 1024
    GetActivityTaskOutput:
      type: object
      properties:
        taskToken:
          allOf:
          - $ref: '#/components/schemas/TaskToken'
          - description: A token that identifies the scheduled task. This token must be copied and included in subsequent calls to <a>SendTaskHeartbeat</a>, <a>SendTaskSuccess</a> or <a>SendTaskFailure</a> in order to report the progress or completion of the task.
        input:
          allOf:
          - $ref: '#/components/schemas/SensitiveDataJobInput'
          - description: The string that contains the JSON input data for the task. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.
    SensitiveDataJobInput:
      type: string
      maxLength: 262144
      format: password
  parameters:
    X-Amz-Credential:
      name: X-Amz-Credential
      in: header
      schema:
        type: string
      required: false
    X-Amz-Algorithm:
      name: X-Amz-Algorithm
      in: header
      schema:
        type: string
      required: false
    X-Amz-SignedHeaders:
      name: X-Amz-SignedHeaders
      in: header
      schema:
        type: string
      required: false
    X-Amz-Signature:
      name: X-Amz-Signature
      in: header
      schema:
        type: string
      required: false
    X-Amz-Content-Sha256:
      name: X-Amz-Content-Sha256
      in: header
      schema:
        type: string
      required: false
    X-Amz-Security-Token:
      name: X-Amz-Security-Token
      in: header
      schema:
        type: string
      required: false
    X-Amz-Date:
      name: X-Amz-Date
      in: header
      schema:
        type: string
      required: false
  securitySchemes:
    hmac:
      type: apiKey
      name: Authorization
      in: header
      description: Amazon Signature authorization v4
      x-amazon-apigateway-authtype: awsSigv4
externalDocs:
  description: Amazon Web Services documentation
  url: https://docs.aws.amazon.com/states/
x-hasEquivalentPaths: true