AWS SDK for PHP 3.x

Service ID: states

Version: 2016-11-23

This page describes the parameters and results for the operations of the AWS Step Functions (2016-11-23), and shows how to use the Aws\Sfn\SfnClient object to call the described operations. This documentation is specific to the 2016-11-23 API version of the service.

Operation Summary

Each of the following operations can be created from a client using $client->getCommand('CommandName'), where "CommandName" is the name of one of the following operations. Note: a command is a value that encapsulates an operation and the parameters used to create an HTTP request.

You can also create and send a command immediately using the magic methods available on a client object: $client->commandName(/* parameters */). You can send the command asynchronously (returning a promise) by appending the word "Async" to the operation name: $client->commandNameAsync(/* parameters */).

CreateActivity ( array $params = [] )
Creates an activity.
CreateStateMachine ( array $params = [] )
Creates a state machine.
DeleteActivity ( array $params = [] )
Deletes an activity.
DeleteStateMachine ( array $params = [] )
Deletes a state machine.
DescribeActivity ( array $params = [] )
Describes an activity.
DescribeExecution ( array $params = [] )
Provides all information about a state machine execution, such as the state machine associated with the execution, the execution input and output, and relevant execution metadata.
DescribeMapRun ( array $params = [] )
Provides information about a Map Run's configuration, progress, and results.
DescribeStateMachine ( array $params = [] )
Provides information about a state machine's definition, its IAM role Amazon Resource Name (ARN), and configuration.
DescribeStateMachineForExecution ( array $params = [] )
Provides information about a state machine's definition, its execution role ARN, and configuration.
GetActivityTask ( array $params = [] )
Used by workers to retrieve a task (with the specified activity ARN) which has been scheduled for execution by a running state machine.
GetExecutionHistory ( array $params = [] )
Returns the history of the specified execution as a list of events.
ListActivities ( array $params = [] )
Lists the existing activities.
ListExecutions ( array $params = [] )
Lists all executions of a state machine or a Map Run.
ListMapRuns ( array $params = [] )
Lists all Map Runs that were started by a given state machine execution.
ListStateMachines ( array $params = [] )
Lists the existing state machines.
ListTagsForResource ( array $params = [] )
List tags for a given resource.
SendTaskFailure ( array $params = [] )
Used by activity workers and task states using the callback pattern to report that the task identified by the taskToken failed.
SendTaskHeartbeat ( array $params = [] )
Used by activity workers and task states using the callback pattern to report to Step Functions that the task represented by the specified taskToken is still making progress.
SendTaskSuccess ( array $params = [] )
Used by activity workers and task states using the callback pattern to report that the task identified by the taskToken completed successfully.
StartExecution ( array $params = [] )
Starts a state machine execution.
StartSyncExecution ( array $params = [] )
Starts a Synchronous Express state machine execution.
StopExecution ( array $params = [] )
Stops an execution.
TagResource ( array $params = [] )
Add a tag to a Step Functions resource.
UntagResource ( array $params = [] )
Remove a tag from a Step Functions resource
UpdateMapRun ( array $params = [] )
Updates an in-progress Map Run's configuration to include changes to the settings that control maximum concurrency and Map Run failure.
UpdateStateMachine ( array $params = [] )
Updates an existing state machine by modifying its definition, roleArn, or loggingConfiguration.

Paginators

Paginators handle automatically iterating over paginated API results. Paginators are associated with specific API operations, and they accept the parameters that the corresponding API operation accepts. You can get a paginator from a client class using getPaginator($paginatorName, $operationParameters). This client supports the following paginators:

GetExecutionHistory
ListActivities
ListExecutions
ListMapRuns
ListStateMachines

Operations

CreateActivity

$result = $client->createActivity([/* ... */]);
$promise = $client->createActivityAsync([/* ... */]);

Creates an activity. An activity is a task that you write in any programming language and host on any machine that has access to Step Functions. Activities must poll Step Functions using the GetActivityTask API action and respond using SendTask* API actions. This function lets Step Functions know the existence of your activity and returns an identifier for use in a state machine and when polling from the activity.

This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.

CreateActivity is an idempotent API. Subsequent requests won’t create a duplicate resource if it was already created. CreateActivity's idempotency check is based on the activity name. If a following request has different tags values, Step Functions will ignore these differences and treat it as an idempotent request of the previous. In this case, tags will not be updated, even if they are different.

Parameter Syntax

$result = $client->createActivity([
    'name' => '<string>', // REQUIRED
    'tags' => [
        [
            'key' => '<string>',
            'value' => '<string>',
        ],
        // ...
    ],
]);

Parameter Details

Members

name

Required: Yes
Type: string

The name of the activity to create. This name must be unique for your Amazon Web Services account and region for 90 days. For more information, see Limits Related to State Machine Executions in the Step Functions Developer Guide.

A name must not contain:

white space
brackets < > { } [ ]
wildcard characters ? *
special characters " # % \ ^ | ~ ` $ & , ; : /
control characters (U+0000-001F, U+007F-009F)

To enable logging with CloudWatch Logs, the name should only contain 0-9, A-Z, a-z, - and _.

tags

Type: Array of Tag structures

The list of tags to add to a resource.

An array of key-value pairs. For more information, see Using Cost Allocation Tags in the Amazon Web Services Billing and Cost Management User Guide, and Controlling Access Using IAM Tags.

Tags may only contain Unicode letters, digits, white space, or these symbols: _ . : / = + - @.

Result Syntax

[
    'activityArn' => '<string>',
    'creationDate' => <DateTime>,
]

Result Details

Members

activityArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies the created activity.

creationDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date the activity is created.

Errors

ActivityLimitExceeded:
The maximum number of activities has been reached. Existing activities must be deleted before a new activity can be created.
InvalidName:
The provided name is not valid.
TooManyTags:
You've exceeded the number of tags allowed for a resource. See the Limits Topic in the Step Functions Developer Guide.

CreateStateMachine

$result = $client->createStateMachine([/* ... */]);
$promise = $client->createStateMachineAsync([/* ... */]);

Creates a state machine. A state machine consists of a collection of states that can do work (Task states), determine to which states to transition next (Choice states), stop an execution with an error (Fail states), and so on. State machines are specified using a JSON-based, structured language. For more information, see Amazon States Language in the Step Functions User Guide.

This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.

CreateStateMachine is an idempotent API. Subsequent requests won’t create a duplicate resource if it was already created. CreateStateMachine's idempotency check is based on the state machine name, definition, type, LoggingConfiguration and TracingConfiguration. If a following request has a different roleArn or tags, Step Functions will ignore these differences and treat it as an idempotent request of the previous. In this case, roleArn and tags will not be updated, even if they are different.

Parameter Syntax

$result = $client->createStateMachine([
    'definition' => '<string>', // REQUIRED
    'loggingConfiguration' => [
        'destinations' => [
            [
                'cloudWatchLogsLogGroup' => [
                    'logGroupArn' => '<string>',
                ],
            ],
            // ...
        ],
        'includeExecutionData' => true || false,
        'level' => 'ALL|ERROR|FATAL|OFF',
    ],
    'name' => '<string>', // REQUIRED
    'roleArn' => '<string>', // REQUIRED
    'tags' => [
        [
            'key' => '<string>',
            'value' => '<string>',
        ],
        // ...
    ],
    'tracingConfiguration' => [
        'enabled' => true || false,
    ],
    'type' => 'STANDARD|EXPRESS',
]);

Parameter Details

Members

definition

Required: Yes
Type: string

The Amazon States Language definition of the state machine. See Amazon States Language.

loggingConfiguration

Type: LoggingConfiguration structure

Defines what execution history events are logged and where they are logged.

By default, the level is set to OFF. For more information see Log Levels in the Step Functions User Guide.

name

Required: Yes
Type: string

The name of the state machine.

A name must not contain:

white space
brackets < > { } [ ]
wildcard characters ? *
special characters " # % \ ^ | ~ ` $ & , ; : /
control characters (U+0000-001F, U+007F-009F)

To enable logging with CloudWatch Logs, the name should only contain 0-9, A-Z, a-z, - and _.

roleArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the IAM role to use for this state machine.

tags

Type: Array of Tag structures

Tags to be added when creating a state machine.

An array of key-value pairs. For more information, see Using Cost Allocation Tags in the Amazon Web Services Billing and Cost Management User Guide, and Controlling Access Using IAM Tags.

Tags may only contain Unicode letters, digits, white space, or these symbols: _ . : / = + - @.

tracingConfiguration

Type: TracingConfiguration structure

Selects whether X-Ray tracing is enabled.

type

Type: string

Determines whether a Standard or Express state machine is created. The default is STANDARD. You cannot update the type of a state machine once it has been created.

Result Syntax

[
    'creationDate' => <DateTime>,
    'stateMachineArn' => '<string>',
]

Result Details

Members

creationDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date the state machine is created.

stateMachineArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies the created state machine.

Errors

InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
InvalidDefinition:
The provided Amazon States Language definition is not valid.
InvalidName:
The provided name is not valid.
InvalidLoggingConfiguration:
InvalidTracingConfiguration:
Your tracingConfiguration key does not match, or enabled has not been set to true or false.
StateMachineAlreadyExists:
A state machine with the same name but a different definition or role ARN already exists.
StateMachineDeleting:
The specified state machine is being deleted.
StateMachineLimitExceeded:
The maximum number of state machines has been reached. Existing state machines must be deleted before a new state machine can be created.
StateMachineTypeNotSupported:
TooManyTags:
You've exceeded the number of tags allowed for a resource. See the Limits Topic in the Step Functions Developer Guide.

DeleteActivity

$result = $client->deleteActivity([/* ... */]);
$promise = $client->deleteActivityAsync([/* ... */]);

Deletes an activity.

Parameter Syntax

$result = $client->deleteActivity([
    'activityArn' => '<string>', // REQUIRED
]);

Parameter Details

Members

activityArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the activity to delete.

Result Syntax

[]

Result Details

The results for this operation are always empty.

Errors

InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.

DeleteStateMachine

$result = $client->deleteStateMachine([/* ... */]);
$promise = $client->deleteStateMachineAsync([/* ... */]);

Deletes a state machine. This is an asynchronous operation: It sets the state machine's status to DELETING and begins the deletion process.

If the given state machine Amazon Resource Name (ARN) is a qualified state machine ARN, it will fail with ValidationException.

A qualified state machine ARN refers to a Distributed Map state defined within a state machine. For example, the qualified state machine ARN arn:partition:states:region:account-id:stateMachine:stateMachineName/mapStateLabel refers to a Distributed Map state with a label mapStateLabel in the state machine named stateMachineName.

For EXPRESS state machines, the deletion will happen eventually (usually less than a minute). Running executions may emit logs after DeleteStateMachine API is called.

Parameter Syntax

$result = $client->deleteStateMachine([
    'stateMachineArn' => '<string>', // REQUIRED
]);

Parameter Details

Members

stateMachineArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the state machine to delete.

Result Syntax

[]

Result Details

The results for this operation are always empty.

Errors

InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
ValidationException:
The input does not satisfy the constraints specified by an Amazon Web Services service.

DescribeActivity

$result = $client->describeActivity([/* ... */]);
$promise = $client->describeActivityAsync([/* ... */]);

Describes an activity.

This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.

Parameter Syntax

$result = $client->describeActivity([
    'activityArn' => '<string>', // REQUIRED
]);

Parameter Details

Members

activityArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the activity to describe.

Result Syntax

[
    'activityArn' => '<string>',
    'creationDate' => <DateTime>,
    'name' => '<string>',
]

Result Details

Members

activityArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies the activity.

creationDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date the activity is created.

name

Required: Yes
Type: string

The name of the activity.

A name must not contain:

white space
brackets < > { } [ ]
wildcard characters ? *
special characters " # % \ ^ | ~ ` $ & , ; : /
control characters (U+0000-001F, U+007F-009F)

To enable logging with CloudWatch Logs, the name should only contain 0-9, A-Z, a-z, - and _.

Errors

ActivityDoesNotExist:
The specified activity does not exist.
InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.

DescribeExecution

$result = $client->describeExecution([/* ... */]);
$promise = $client->describeExecutionAsync([/* ... */]);

Provides all information about a state machine execution, such as the state machine associated with the execution, the execution input and output, and relevant execution metadata. Use this API action to return the Map Run ARN if the execution was dispatched by a Map Run.

This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.

This API action is not supported by EXPRESS state machine executions unless they were dispatched by a Map Run.

Parameter Syntax

$result = $client->describeExecution([
    'executionArn' => '<string>', // REQUIRED
]);

Parameter Details

Members

executionArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the execution to describe.

Result Syntax

[
    'cause' => '<string>',
    'error' => '<string>',
    'executionArn' => '<string>',
    'input' => '<string>',
    'inputDetails' => [
        'included' => true || false,
    ],
    'mapRunArn' => '<string>',
    'name' => '<string>',
    'output' => '<string>',
    'outputDetails' => [
        'included' => true || false,
    ],
    'startDate' => <DateTime>,
    'stateMachineArn' => '<string>',
    'status' => 'RUNNING|SUCCEEDED|FAILED|TIMED_OUT|ABORTED',
    'stopDate' => <DateTime>,
    'traceHeader' => '<string>',
]

Result Details

Members

cause

Type: string

The cause string if the state machine execution failed.

error

Type: string

The error string if the state machine execution failed.

executionArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies the execution.

input

Type: string

The string that contains the JSON input data of the execution. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

inputDetails

Type: CloudWatchEventsExecutionDataDetails structure

Provides details about execution input or output.

mapRunArn

Type: string

The Amazon Resource Name (ARN) that identifies a Map Run, which dispatched this execution.

name

Type: string

The name of the execution.

A name must not contain:

white space
brackets < > { } [ ]
wildcard characters ? *
special characters " # % \ ^ | ~ ` $ & , ; : /
control characters (U+0000-001F, U+007F-009F)

To enable logging with CloudWatch Logs, the name should only contain 0-9, A-Z, a-z, - and _.

output

Type: string

The JSON output data of the execution. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

This field is set only if the execution succeeds. If the execution fails, this field is null.

outputDetails

Type: CloudWatchEventsExecutionDataDetails structure

Provides details about execution input or output.

startDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date the execution is started.

stateMachineArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the executed stated machine.

status

Required: Yes
Type: string

The current status of the execution.

stopDate

Type: timestamp (string|DateTime or anything parsable by strtotime)

If the execution has already ended, the date the execution stopped.

traceHeader

Type: string

The X-Ray trace header that was passed to the execution.

Errors

ExecutionDoesNotExist:
The specified execution does not exist.
InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.

DescribeMapRun

$result = $client->describeMapRun([/* ... */]);
$promise = $client->describeMapRunAsync([/* ... */]);

Provides information about a Map Run's configuration, progress, and results. For more information, see Examining Map Run in the Step Functions Developer Guide.

Parameter Syntax

$result = $client->describeMapRun([
    'mapRunArn' => '<string>', // REQUIRED
]);

Parameter Details

Members

mapRunArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies a Map Run.

Result Syntax

[
    'executionArn' => '<string>',
    'executionCounts' => [
        'aborted' => <integer>,
        'failed' => <integer>,
        'pending' => <integer>,
        'resultsWritten' => <integer>,
        'running' => <integer>,
        'succeeded' => <integer>,
        'timedOut' => <integer>,
        'total' => <integer>,
    ],
    'itemCounts' => [
        'aborted' => <integer>,
        'failed' => <integer>,
        'pending' => <integer>,
        'resultsWritten' => <integer>,
        'running' => <integer>,
        'succeeded' => <integer>,
        'timedOut' => <integer>,
        'total' => <integer>,
    ],
    'mapRunArn' => '<string>',
    'maxConcurrency' => <integer>,
    'startDate' => <DateTime>,
    'status' => 'RUNNING|SUCCEEDED|FAILED|ABORTED',
    'stopDate' => <DateTime>,
    'toleratedFailureCount' => <integer>,
    'toleratedFailurePercentage' => <float>,
]

Result Details

Members

executionArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies the execution in which the Map Run was started.

executionCounts

Required: Yes
Type: MapRunExecutionCounts structure

A JSON object that contains information about the total number of child workflow executions for the Map Run, and the count of child workflow executions for each status, such as failed and succeeded.

itemCounts

Required: Yes
Type: MapRunItemCounts structure

A JSON object that contains information about the total number of items, and the item count for each processing status, such as pending and failed.

mapRunArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies a Map Run.

maxConcurrency

Required: Yes
Type: int

The maximum number of child workflow executions configured to run in parallel for the Map Run at the same time.

startDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date when the Map Run was started.

status

Required: Yes
Type: string

The current status of the Map Run.

stopDate

Type: timestamp (string|DateTime or anything parsable by strtotime)

The date when the Map Run was stopped.

toleratedFailureCount

Required: Yes
Type: long (int|float)

The maximum number of failed child workflow executions before the Map Run fails.

toleratedFailurePercentage

Required: Yes
Type: float

The maximum percentage of failed child workflow executions before the Map Run fails.

Errors

ResourceNotFound:
Could not find the referenced resource. Only state machine and activity ARNs are supported.
InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.

DescribeStateMachine

$result = $client->describeStateMachine([/* ... */]);
$promise = $client->describeStateMachineAsync([/* ... */]);

Provides information about a state machine's definition, its IAM role Amazon Resource Name (ARN), and configuration. If the state machine ARN is a qualified state machine ARN, the response returned includes the Map state's label.

This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.

Parameter Syntax

$result = $client->describeStateMachine([
    'stateMachineArn' => '<string>', // REQUIRED
]);

Parameter Details

Members

stateMachineArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the state machine to describe.

Result Syntax

[
    'creationDate' => <DateTime>,
    'definition' => '<string>',
    'label' => '<string>',
    'loggingConfiguration' => [
        'destinations' => [
            [
                'cloudWatchLogsLogGroup' => [
                    'logGroupArn' => '<string>',
                ],
            ],
            // ...
        ],
        'includeExecutionData' => true || false,
        'level' => 'ALL|ERROR|FATAL|OFF',
    ],
    'name' => '<string>',
    'roleArn' => '<string>',
    'stateMachineArn' => '<string>',
    'status' => 'ACTIVE|DELETING',
    'tracingConfiguration' => [
        'enabled' => true || false,
    ],
    'type' => 'STANDARD|EXPRESS',
]

Result Details

Members

creationDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date the state machine is created.

definition

Required: Yes
Type: string

The Amazon States Language definition of the state machine. See Amazon States Language.

label

Type: string

A user-defined or an auto-generated string that identifies a Map state. This parameter is present only if the stateMachineArn specified in input is a qualified state machine ARN.

loggingConfiguration

Type: LoggingConfiguration structure

The LoggingConfiguration data type is used to set CloudWatch Logs options.

name

Required: Yes
Type: string

The name of the state machine.

A name must not contain:

white space
brackets < > { } [ ]
wildcard characters ? *
special characters " # % \ ^ | ~ ` $ & , ; : /
control characters (U+0000-001F, U+007F-009F)

To enable logging with CloudWatch Logs, the name should only contain 0-9, A-Z, a-z, - and _.

roleArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the IAM role used when creating this state machine. (The IAM role maintains security by granting Step Functions access to Amazon Web Services resources.)

stateMachineArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies the state machine.

status

Type: string

The current status of the state machine.

tracingConfiguration

Type: TracingConfiguration structure

Selects whether X-Ray tracing is enabled.

type

Required: Yes
Type: string

The type of the state machine (STANDARD or EXPRESS).

Errors

InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
StateMachineDoesNotExist:
The specified state machine does not exist.

DescribeStateMachineForExecution

$result = $client->describeStateMachineForExecution([/* ... */]);
$promise = $client->describeStateMachineForExecutionAsync([/* ... */]);

Provides information about a state machine's definition, its execution role ARN, and configuration. If an execution was dispatched by a Map Run, the Map Run is returned in the response. Additionally, the state machine returned will be the state machine associated with the Map Run.

This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.

This API action is not supported by EXPRESS state machines.

Parameter Syntax

$result = $client->describeStateMachineForExecution([
    'executionArn' => '<string>', // REQUIRED
]);

Parameter Details

Members

executionArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the execution you want state machine information for.

Result Syntax

[
    'definition' => '<string>',
    'label' => '<string>',
    'loggingConfiguration' => [
        'destinations' => [
            [
                'cloudWatchLogsLogGroup' => [
                    'logGroupArn' => '<string>',
                ],
            ],
            // ...
        ],
        'includeExecutionData' => true || false,
        'level' => 'ALL|ERROR|FATAL|OFF',
    ],
    'mapRunArn' => '<string>',
    'name' => '<string>',
    'roleArn' => '<string>',
    'stateMachineArn' => '<string>',
    'tracingConfiguration' => [
        'enabled' => true || false,
    ],
    'updateDate' => <DateTime>,
]

Result Details

Members

definition

Required: Yes
Type: string

The Amazon States Language definition of the state machine. See Amazon States Language.

label

Type: string

A user-defined or an auto-generated string that identifies a Map state. This ﬁeld is returned only if the executionArn is a child workflow execution that was started by a Distributed Map state.

loggingConfiguration

Type: LoggingConfiguration structure

The LoggingConfiguration data type is used to set CloudWatch Logs options.

mapRunArn

Type: string

The Amazon Resource Name (ARN) of the Map Run that started the child workflow execution. This field is returned only if the executionArn is a child workflow execution that was started by a Distributed Map state.

name

Required: Yes
Type: string

The name of the state machine associated with the execution.

roleArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the IAM role of the State Machine for the execution.

stateMachineArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the state machine associated with the execution.

tracingConfiguration

Type: TracingConfiguration structure

Selects whether X-Ray tracing is enabled.

updateDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date and time the state machine associated with an execution was updated. For a newly created state machine, this is the creation date.

Errors

ExecutionDoesNotExist:
The specified execution does not exist.
InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.

GetActivityTask

$result = $client->getActivityTask([/* ... */]);
$promise = $client->getActivityTaskAsync([/* ... */]);

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 taskToken with a null string.

This API action isn't logged in CloudTrail.

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).

Polling with GetActivityTask can cause latency in some implementations. See Avoid Latency When Polling for Activity Tasks in the Step Functions Developer Guide.

Parameter Syntax

$result = $client->getActivityTask([
    'activityArn' => '<string>', // REQUIRED
    'workerName' => '<string>',
]);

Parameter Details

Members

activityArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the activity to retrieve tasks from (assigned when you create the task using CreateActivity.)

workerName

Type: string

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.

Result Syntax

[
    'input' => '<string>',
    'taskToken' => '<string>',
]

Result Details

Members

input

Type: string

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.

taskToken

Type: string

A token that identifies the scheduled task. This token must be copied and included in subsequent calls to SendTaskHeartbeat, SendTaskSuccess or SendTaskFailure in order to report the progress or completion of the task.

Errors

ActivityDoesNotExist:
The specified activity does not exist.
ActivityWorkerLimitExceeded:
The maximum number of workers concurrently polling for activity tasks has been reached.
InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.

GetExecutionHistory

$result = $client->getExecutionHistory([/* ... */]);
$promise = $client->getExecutionHistoryAsync([/* ... */]);

Returns the history of the specified execution as a list of events. By default, the results are returned in ascending order of the timeStamp of the events. Use the reverseOrder parameter to get the latest events first.

If nextToken is returned, there are more results available. The value of nextToken is a unique pagination token for each page. Make the call again using the returned token to retrieve the next page. Keep all other arguments unchanged. Each pagination token expires after 24 hours. Using an expired pagination token will return an HTTP 400 InvalidToken error.

This API action is not supported by EXPRESS state machines.

Parameter Syntax

$result = $client->getExecutionHistory([
    'executionArn' => '<string>', // REQUIRED
    'includeExecutionData' => true || false,
    'maxResults' => <integer>,
    'nextToken' => '<string>',
    'reverseOrder' => true || false,
]);

Parameter Details

Members

executionArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the execution.

includeExecutionData

Type: boolean

You can select whether execution data (input or output of a history event) is returned. The default is true.

maxResults

Type: int

The maximum number of results that are returned per call. You can use nextToken to obtain further pages of results. The default is 100 and the maximum allowed page size is 1000. A value of 0 uses the default.

This is only an upper limit. The actual number of results returned per call might be fewer than the specified maximum.

nextToken

Type: string

reverseOrder

Type: boolean

Lists events in descending order of their timeStamp.

Result Syntax

[
    'events' => [
        [
            'activityFailedEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
            ],
            'activityScheduleFailedEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
            ],
            'activityScheduledEventDetails' => [
                'heartbeatInSeconds' => <integer>,
                'input' => '<string>',
                'inputDetails' => [
                    'truncated' => true || false,
                ],
                'resource' => '<string>',
                'timeoutInSeconds' => <integer>,
            ],
            'activityStartedEventDetails' => [
                'workerName' => '<string>',
            ],
            'activitySucceededEventDetails' => [
                'output' => '<string>',
                'outputDetails' => [
                    'truncated' => true || false,
                ],
            ],
            'activityTimedOutEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
            ],
            'executionAbortedEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
            ],
            'executionFailedEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
            ],
            'executionStartedEventDetails' => [
                'input' => '<string>',
                'inputDetails' => [
                    'truncated' => true || false,
                ],
                'roleArn' => '<string>',
            ],
            'executionSucceededEventDetails' => [
                'output' => '<string>',
                'outputDetails' => [
                    'truncated' => true || false,
                ],
            ],
            'executionTimedOutEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
            ],
            'id' => <integer>,
            'lambdaFunctionFailedEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
            ],
            'lambdaFunctionScheduleFailedEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
            ],
            'lambdaFunctionScheduledEventDetails' => [
                'input' => '<string>',
                'inputDetails' => [
                    'truncated' => true || false,
                ],
                'resource' => '<string>',
                'taskCredentials' => [
                    'roleArn' => '<string>',
                ],
                'timeoutInSeconds' => <integer>,
            ],
            'lambdaFunctionStartFailedEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
            ],
            'lambdaFunctionSucceededEventDetails' => [
                'output' => '<string>',
                'outputDetails' => [
                    'truncated' => true || false,
                ],
            ],
            'lambdaFunctionTimedOutEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
            ],
            'mapIterationAbortedEventDetails' => [
                'index' => <integer>,
                'name' => '<string>',
            ],
            'mapIterationFailedEventDetails' => [
                'index' => <integer>,
                'name' => '<string>',
            ],
            'mapIterationStartedEventDetails' => [
                'index' => <integer>,
                'name' => '<string>',
            ],
            'mapIterationSucceededEventDetails' => [
                'index' => <integer>,
                'name' => '<string>',
            ],
            'mapRunFailedEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
            ],
            'mapRunStartedEventDetails' => [
                'mapRunArn' => '<string>',
            ],
            'mapStateStartedEventDetails' => [
                'length' => <integer>,
            ],
            'previousEventId' => <integer>,
            'stateEnteredEventDetails' => [
                'input' => '<string>',
                'inputDetails' => [
                    'truncated' => true || false,
                ],
                'name' => '<string>',
            ],
            'stateExitedEventDetails' => [
                'name' => '<string>',
                'output' => '<string>',
                'outputDetails' => [
                    'truncated' => true || false,
                ],
            ],
            'taskFailedEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
                'resource' => '<string>',
                'resourceType' => '<string>',
            ],
            'taskScheduledEventDetails' => [
                'heartbeatInSeconds' => <integer>,
                'parameters' => '<string>',
                'region' => '<string>',
                'resource' => '<string>',
                'resourceType' => '<string>',
                'taskCredentials' => [
                    'roleArn' => '<string>',
                ],
                'timeoutInSeconds' => <integer>,
            ],
            'taskStartFailedEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
                'resource' => '<string>',
                'resourceType' => '<string>',
            ],
            'taskStartedEventDetails' => [
                'resource' => '<string>',
                'resourceType' => '<string>',
            ],
            'taskSubmitFailedEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
                'resource' => '<string>',
                'resourceType' => '<string>',
            ],
            'taskSubmittedEventDetails' => [
                'output' => '<string>',
                'outputDetails' => [
                    'truncated' => true || false,
                ],
                'resource' => '<string>',
                'resourceType' => '<string>',
            ],
            'taskSucceededEventDetails' => [
                'output' => '<string>',
                'outputDetails' => [
                    'truncated' => true || false,
                ],
                'resource' => '<string>',
                'resourceType' => '<string>',
            ],
            'taskTimedOutEventDetails' => [
                'cause' => '<string>',
                'error' => '<string>',
                'resource' => '<string>',
                'resourceType' => '<string>',
            ],
            'timestamp' => <DateTime>,
            'type' => 'ActivityFailed|ActivityScheduled|ActivityScheduleFailed|ActivityStarted|ActivitySucceeded|ActivityTimedOut|ChoiceStateEntered|ChoiceStateExited|ExecutionAborted|ExecutionFailed|ExecutionStarted|ExecutionSucceeded|ExecutionTimedOut|FailStateEntered|LambdaFunctionFailed|LambdaFunctionScheduled|LambdaFunctionScheduleFailed|LambdaFunctionStarted|LambdaFunctionStartFailed|LambdaFunctionSucceeded|LambdaFunctionTimedOut|MapIterationAborted|MapIterationFailed|MapIterationStarted|MapIterationSucceeded|MapStateAborted|MapStateEntered|MapStateExited|MapStateFailed|MapStateStarted|MapStateSucceeded|ParallelStateAborted|ParallelStateEntered|ParallelStateExited|ParallelStateFailed|ParallelStateStarted|ParallelStateSucceeded|PassStateEntered|PassStateExited|SucceedStateEntered|SucceedStateExited|TaskFailed|TaskScheduled|TaskStarted|TaskStartFailed|TaskStateAborted|TaskStateEntered|TaskStateExited|TaskSubmitFailed|TaskSubmitted|TaskSucceeded|TaskTimedOut|WaitStateAborted|WaitStateEntered|WaitStateExited|MapRunAborted|MapRunFailed|MapRunStarted|MapRunSucceeded',
        ],
        // ...
    ],
    'nextToken' => '<string>',
]

Result Details

Members

events

Required: Yes
Type: Array of HistoryEvent structures

The list of events that occurred in the execution.

nextToken

Type: string

Errors

ExecutionDoesNotExist:
The specified execution does not exist.
InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
InvalidToken:
The provided token is not valid.

ListActivities

$result = $client->listActivities([/* ... */]);
$promise = $client->listActivitiesAsync([/* ... */]);

Lists the existing activities.

This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.

Parameter Syntax

$result = $client->listActivities([
    'maxResults' => <integer>,
    'nextToken' => '<string>',
]);

Parameter Details

Members

maxResults

Type: int

This is only an upper limit. The actual number of results returned per call might be fewer than the specified maximum.

nextToken

Type: string

Result Syntax

[
    'activities' => [
        [
            'activityArn' => '<string>',
            'creationDate' => <DateTime>,
            'name' => '<string>',
        ],
        // ...
    ],
    'nextToken' => '<string>',
]

Result Details

Members

activities

Required: Yes
Type: Array of ActivityListItem structures

The list of activities.

nextToken

Type: string

Errors

InvalidToken:
The provided token is not valid.

ListExecutions

$result = $client->listExecutions([/* ... */]);
$promise = $client->listExecutionsAsync([/* ... */]);

Lists all executions of a state machine or a Map Run. You can list all executions related to a state machine by specifying a state machine Amazon Resource Name (ARN), or those related to a Map Run by specifying a Map Run ARN.

Results are sorted by time, with the most recent execution first.

This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.

This API action is not supported by EXPRESS state machines.

Parameter Syntax

$result = $client->listExecutions([
    'mapRunArn' => '<string>',
    'maxResults' => <integer>,
    'nextToken' => '<string>',
    'stateMachineArn' => '<string>',
    'statusFilter' => 'RUNNING|SUCCEEDED|FAILED|TIMED_OUT|ABORTED',
]);

Parameter Details

Members

mapRunArn

Type: string

The Amazon Resource Name (ARN) of the Map Run that started the child workflow executions. If the mapRunArn field is specified, a list of all of the child workflow executions started by a Map Run is returned. For more information, see Examining Map Run in the Step Functions Developer Guide.

You can specify either a mapRunArn or a stateMachineArn, but not both.

maxResults

Type: int

This is only an upper limit. The actual number of results returned per call might be fewer than the specified maximum.

nextToken

Type: string

stateMachineArn

Type: string

The Amazon Resource Name (ARN) of the state machine whose executions is listed.

You can specify either a mapRunArn or a stateMachineArn, but not both.

statusFilter

Type: string

If specified, only list the executions whose current execution status matches the given filter.

Result Syntax

[
    'executions' => [
        [
            'executionArn' => '<string>',
            'itemCount' => <integer>,
            'mapRunArn' => '<string>',
            'name' => '<string>',
            'startDate' => <DateTime>,
            'stateMachineArn' => '<string>',
            'status' => 'RUNNING|SUCCEEDED|FAILED|TIMED_OUT|ABORTED',
            'stopDate' => <DateTime>,
        ],
        // ...
    ],
    'nextToken' => '<string>',
]

Result Details

Members

executions

Required: Yes
Type: Array of ExecutionListItem structures

The list of matching executions.

nextToken

Type: string

Errors

InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
InvalidToken:
The provided token is not valid.
StateMachineDoesNotExist:
The specified state machine does not exist.
StateMachineTypeNotSupported:
ValidationException:
The input does not satisfy the constraints specified by an Amazon Web Services service.
ResourceNotFound:
Could not find the referenced resource. Only state machine and activity ARNs are supported.

ListMapRuns

$result = $client->listMapRuns([/* ... */]);
$promise = $client->listMapRunsAsync([/* ... */]);

Lists all Map Runs that were started by a given state machine execution. Use this API action to obtain Map Run ARNs, and then call DescribeMapRun to obtain more information, if needed.

Parameter Syntax

$result = $client->listMapRuns([
    'executionArn' => '<string>', // REQUIRED
    'maxResults' => <integer>,
    'nextToken' => '<string>',
]);

Parameter Details

Members

executionArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the execution for which the Map Runs must be listed.

maxResults

Type: int

This is only an upper limit. The actual number of results returned per call might be fewer than the specified maximum.

nextToken

Type: string

Result Syntax

[
    'mapRuns' => [
        [
            'executionArn' => '<string>',
            'mapRunArn' => '<string>',
            'startDate' => <DateTime>,
            'stateMachineArn' => '<string>',
            'stopDate' => <DateTime>,
        ],
        // ...
    ],
    'nextToken' => '<string>',
]

Result Details

Members

mapRuns

Required: Yes
Type: Array of MapRunListItem structures

An array that lists information related to a Map Run, such as the Amazon Resource Name (ARN) of the Map Run and the ARN of the state machine that started the Map Run.

nextToken

Type: string

Errors

ExecutionDoesNotExist:
The specified execution does not exist.
InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
InvalidToken:
The provided token is not valid.

ListStateMachines

$result = $client->listStateMachines([/* ... */]);
$promise = $client->listStateMachinesAsync([/* ... */]);

Lists the existing state machines.

This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.

Parameter Syntax

$result = $client->listStateMachines([
    'maxResults' => <integer>,
    'nextToken' => '<string>',
]);

Parameter Details

Members

maxResults

Type: int

This is only an upper limit. The actual number of results returned per call might be fewer than the specified maximum.

nextToken

Type: string

Result Syntax

[
    'nextToken' => '<string>',
    'stateMachines' => [
        [
            'creationDate' => <DateTime>,
            'name' => '<string>',
            'stateMachineArn' => '<string>',
            'type' => 'STANDARD|EXPRESS',
        ],
        // ...
    ],
]

Result Details

Members

nextToken

Type: string

stateMachines

Required: Yes
Type: Array of StateMachineListItem structures

Errors

InvalidToken:
The provided token is not valid.

ListTagsForResource

$result = $client->listTagsForResource([/* ... */]);
$promise = $client->listTagsForResourceAsync([/* ... */]);

List tags for a given resource.

Tags may only contain Unicode letters, digits, white space, or these symbols: _ . : / = + - @.

Parameter Syntax

$result = $client->listTagsForResource([
    'resourceArn' => '<string>', // REQUIRED
]);

Parameter Details

Members

resourceArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) for the Step Functions state machine or activity.

Result Syntax

[
    'tags' => [
        [
            'key' => '<string>',
            'value' => '<string>',
        ],
        // ...
    ],
]

Result Details

Members

tags

Type: Array of Tag structures

An array of tags associated with the resource.

Errors

InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
ResourceNotFound:
Could not find the referenced resource. Only state machine and activity ARNs are supported.

SendTaskFailure

$result = $client->sendTaskFailure([/* ... */]);
$promise = $client->sendTaskFailureAsync([/* ... */]);

Used by activity workers and task states using the callback pattern to report that the task identified by the taskToken failed.

Parameter Syntax

$result = $client->sendTaskFailure([
    'cause' => '<string>',
    'error' => '<string>',
    'taskToken' => '<string>', // REQUIRED
]);

Parameter Details

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

taskToken

Required: Yes
Type: string

The token that represents this task. Task tokens are generated by Step Functions when tasks are assigned to a worker, or in the context object when a workflow enters a task state. See GetActivityTaskOutput$taskToken.

Result Syntax

[]

Result Details

The results for this operation are always empty.

Errors

TaskDoesNotExist:
This error does not currently have a description.
InvalidToken:
The provided token is not valid.
TaskTimedOut:
This error does not currently have a description.

SendTaskHeartbeat

$result = $client->sendTaskHeartbeat([/* ... */]);
$promise = $client->sendTaskHeartbeatAsync([/* ... */]);

Used by activity workers and task states using the callback pattern to report to Step Functions that the task represented by the specified taskToken is still making progress. This action resets the Heartbeat clock. The Heartbeat threshold is specified in the state machine's Amazon States Language definition (HeartbeatSeconds). This action does not in itself create an event in the execution history. However, if the task times out, the execution history contains an ActivityTimedOut entry for activities, or a TaskTimedOut entry for for tasks using the job run or callback pattern.

The Timeout of a task, defined in the state machine's Amazon States Language definition, is its maximum allowed duration, regardless of the number of SendTaskHeartbeat requests received. Use HeartbeatSeconds to configure the timeout interval for heartbeats.

Parameter Syntax

$result = $client->sendTaskHeartbeat([
    'taskToken' => '<string>', // REQUIRED
]);

Parameter Details

Members

taskToken

Required: Yes
Type: string

Result Syntax

[]

Result Details

The results for this operation are always empty.

Errors

TaskDoesNotExist:
This error does not currently have a description.
InvalidToken:
The provided token is not valid.
TaskTimedOut:
This error does not currently have a description.

SendTaskSuccess

$result = $client->sendTaskSuccess([/* ... */]);
$promise = $client->sendTaskSuccessAsync([/* ... */]);

Used by activity workers and task states using the callback pattern to report that the task identified by the taskToken completed successfully.

Parameter Syntax

$result = $client->sendTaskSuccess([
    'output' => '<string>', // REQUIRED
    'taskToken' => '<string>', // REQUIRED
]);

Parameter Details

Members

output

Required: Yes
Type: string

The JSON output of the task. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

taskToken

Required: Yes
Type: string

Result Syntax

[]

Result Details

The results for this operation are always empty.

Errors

TaskDoesNotExist:
This error does not currently have a description.
InvalidOutput:
The provided JSON output data is not valid.
InvalidToken:
The provided token is not valid.
TaskTimedOut:
This error does not currently have a description.

StartExecution

$result = $client->startExecution([/* ... */]);
$promise = $client->startExecutionAsync([/* ... */]);

Starts a state machine execution. If the given state machine Amazon Resource Name (ARN) is a qualified state machine ARN, it will fail with ValidationException.

StartExecution is idempotent for STANDARD workflows. For a STANDARD workflow, if StartExecution is called with the same name and input as a running execution, the call will succeed and return the same response as the original request. If the execution is closed or if the input is different, it will return a 400 ExecutionAlreadyExists error. Names can be reused after 90 days.

StartExecution is not idempotent for EXPRESS workflows.

Parameter Syntax

$result = $client->startExecution([
    'input' => '<string>',
    'name' => '<string>',
    'stateMachineArn' => '<string>', // REQUIRED
    'traceHeader' => '<string>',
]);

Parameter Details

Members

input

Type: string

The string that contains the JSON input data for the execution, for example:

"input": "{\"first_name\" : \"test\"}"

If you don't include any JSON input data, you still must include the two braces, for example: "input": "{}"

Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

name

Type: string

The name of the execution. This name must be unique for your Amazon Web Services account, region, and state machine for 90 days. For more information, see Limits Related to State Machine Executions in the Step Functions Developer Guide.

A name must not contain:

white space
brackets < > { } [ ]
wildcard characters ? *
special characters " # % \ ^ | ~ ` $ & , ; : /
control characters (U+0000-001F, U+007F-009F)

To enable logging with CloudWatch Logs, the name should only contain 0-9, A-Z, a-z, - and _.

stateMachineArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the state machine to execute.

traceHeader

Type: string

Passes the X-Ray trace header. The trace header can also be passed in the request payload.

Result Syntax

[
    'executionArn' => '<string>',
    'startDate' => <DateTime>,
]

Result Details

Members

executionArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies the execution.

startDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date the execution is started.

Errors

ExecutionLimitExceeded:
The maximum number of running executions has been reached. Running executions must end or be stopped before a new execution can be started.
ExecutionAlreadyExists:
The execution has the same name as another execution (but a different input).

Executions with the same name and input are considered idempotent.
InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
InvalidExecutionInput:
The provided JSON input data is not valid.
InvalidName:
The provided name is not valid.
StateMachineDoesNotExist:
The specified state machine does not exist.
StateMachineDeleting:
The specified state machine is being deleted.
ValidationException:
The input does not satisfy the constraints specified by an Amazon Web Services service.

StartSyncExecution

$result = $client->startSyncExecution([/* ... */]);
$promise = $client->startSyncExecutionAsync([/* ... */]);

Starts a Synchronous Express state machine execution. StartSyncExecution is not available for STANDARD workflows.

StartSyncExecution will return a 200 OK response, even if your execution fails, because the status code in the API response doesn't reflect function errors. Error codes are reserved for errors that prevent your execution from running, such as permissions errors, limit errors, or issues with your state machine code and configuration.

This API action isn't logged in CloudTrail.

Parameter Syntax

$result = $client->startSyncExecution([
    'input' => '<string>',
    'name' => '<string>',
    'stateMachineArn' => '<string>', // REQUIRED
    'traceHeader' => '<string>',
]);

Parameter Details

Members

input

Type: string

The string that contains the JSON input data for the execution, for example:

"input": "{\"first_name\" : \"test\"}"

If you don't include any JSON input data, you still must include the two braces, for example: "input": "{}"

Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

name

Type: string

The name of the execution.

stateMachineArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the state machine to execute.

traceHeader

Type: string

Passes the X-Ray trace header. The trace header can also be passed in the request payload.

Result Syntax

[
    'billingDetails' => [
        'billedDurationInMilliseconds' => <integer>,
        'billedMemoryUsedInMB' => <integer>,
    ],
    'cause' => '<string>',
    'error' => '<string>',
    'executionArn' => '<string>',
    'input' => '<string>',
    'inputDetails' => [
        'included' => true || false,
    ],
    'name' => '<string>',
    'output' => '<string>',
    'outputDetails' => [
        'included' => true || false,
    ],
    'startDate' => <DateTime>,
    'stateMachineArn' => '<string>',
    'status' => 'SUCCEEDED|FAILED|TIMED_OUT',
    'stopDate' => <DateTime>,
    'traceHeader' => '<string>',
]

Result Details

Members

billingDetails

Type: BillingDetails structure

An object that describes workflow billing details, including billed duration and memory use.

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

executionArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies the execution.

input

Type: string

The string that contains the JSON input data of the execution. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

inputDetails

Type: CloudWatchEventsExecutionDataDetails structure

Provides details about execution input or output.

name

Type: string

The name of the execution.

output

Type: string

The JSON output data of the execution. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

This field is set only if the execution succeeds. If the execution fails, this field is null.

outputDetails

Type: CloudWatchEventsExecutionDataDetails structure

Provides details about execution input or output.

startDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date the execution is started.

stateMachineArn

Type: string

The Amazon Resource Name (ARN) that identifies the state machine.

status

Required: Yes
Type: string

The current status of the execution.

stopDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

If the execution has already ended, the date the execution stopped.

traceHeader

Type: string

The X-Ray trace header that was passed to the execution.

Errors

InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
InvalidExecutionInput:
The provided JSON input data is not valid.
InvalidName:
The provided name is not valid.
StateMachineDoesNotExist:
The specified state machine does not exist.
StateMachineDeleting:
The specified state machine is being deleted.
StateMachineTypeNotSupported:

StopExecution

$result = $client->stopExecution([/* ... */]);
$promise = $client->stopExecutionAsync([/* ... */]);

Stops an execution.

This API action is not supported by EXPRESS state machines.

Parameter Syntax

$result = $client->stopExecution([
    'cause' => '<string>',
    'error' => '<string>',
    'executionArn' => '<string>', // REQUIRED
]);

Parameter Details

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

executionArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the execution to stop.

Result Syntax

[
    'stopDate' => <DateTime>,
]

Result Details

Members

stopDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date the execution is stopped.

Errors

ExecutionDoesNotExist:
The specified execution does not exist.
InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
ValidationException:
The input does not satisfy the constraints specified by an Amazon Web Services service.

TagResource

$result = $client->tagResource([/* ... */]);
$promise = $client->tagResourceAsync([/* ... */]);

Add a tag to a Step Functions resource.

An array of key-value pairs. For more information, see Using Cost Allocation Tags in the Amazon Web Services Billing and Cost Management User Guide, and Controlling Access Using IAM Tags.

Tags may only contain Unicode letters, digits, white space, or these symbols: _ . : / = + - @.

Parameter Syntax

$result = $client->tagResource([
    'resourceArn' => '<string>', // REQUIRED
    'tags' => [ // REQUIRED
        [
            'key' => '<string>',
            'value' => '<string>',
        ],
        // ...
    ],
]);

Parameter Details

Members

resourceArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) for the Step Functions state machine or activity.

tags

Required: Yes
Type: Array of Tag structures

The list of tags to add to a resource.

Tags may only contain Unicode letters, digits, white space, or these symbols: _ . : / = + - @.

Result Syntax

[]

Result Details

The results for this operation are always empty.

Errors

InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
ResourceNotFound:
Could not find the referenced resource. Only state machine and activity ARNs are supported.
TooManyTags:
You've exceeded the number of tags allowed for a resource. See the Limits Topic in the Step Functions Developer Guide.

UntagResource

$result = $client->untagResource([/* ... */]);
$promise = $client->untagResourceAsync([/* ... */]);

Remove a tag from a Step Functions resource

Parameter Syntax

$result = $client->untagResource([
    'resourceArn' => '<string>', // REQUIRED
    'tagKeys' => ['<string>', ...], // REQUIRED
]);

Parameter Details

Members

resourceArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) for the Step Functions state machine or activity.

tagKeys

Required: Yes
Type: Array of strings

The list of tags to remove from the resource.

Result Syntax

[]

Result Details

The results for this operation are always empty.

Errors

InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
ResourceNotFound:
Could not find the referenced resource. Only state machine and activity ARNs are supported.

UpdateMapRun

$result = $client->updateMapRun([/* ... */]);
$promise = $client->updateMapRunAsync([/* ... */]);

Updates an in-progress Map Run's configuration to include changes to the settings that control maximum concurrency and Map Run failure.

Parameter Syntax

$result = $client->updateMapRun([
    'mapRunArn' => '<string>', // REQUIRED
    'maxConcurrency' => <integer>,
    'toleratedFailureCount' => <integer>,
    'toleratedFailurePercentage' => <float>,
]);

Parameter Details

Members

mapRunArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of a Map Run.

maxConcurrency

Type: int

The maximum number of child workflow executions that can be specified to run in parallel for the Map Run at the same time.

toleratedFailureCount

Type: long (int|float)

The maximum number of failed items before the Map Run fails.

toleratedFailurePercentage

Type: float

The maximum percentage of failed items before the Map Run fails.

Result Syntax

[]

Result Details

The results for this operation are always empty.

Errors

ResourceNotFound:
Could not find the referenced resource. Only state machine and activity ARNs are supported.
InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
ValidationException:
The input does not satisfy the constraints specified by an Amazon Web Services service.

UpdateStateMachine

$result = $client->updateStateMachine([/* ... */]);
$promise = $client->updateStateMachineAsync([/* ... */]);

Updates an existing state machine by modifying its definition, roleArn, or loggingConfiguration. Running executions will continue to use the previous definition and roleArn. You must include at least one of definition or roleArn or you will receive a MissingRequiredParameter error.

If the given state machine Amazon Resource Name (ARN) is a qualified state machine ARN, it will fail with ValidationException.

All StartExecution calls within a few seconds will use the updated definition and roleArn. Executions started immediately after calling UpdateStateMachine may use the previous state machine definition and roleArn.

Parameter Syntax

$result = $client->updateStateMachine([
    'definition' => '<string>',
    'loggingConfiguration' => [
        'destinations' => [
            [
                'cloudWatchLogsLogGroup' => [
                    'logGroupArn' => '<string>',
                ],
            ],
            // ...
        ],
        'includeExecutionData' => true || false,
        'level' => 'ALL|ERROR|FATAL|OFF',
    ],
    'roleArn' => '<string>',
    'stateMachineArn' => '<string>', // REQUIRED
    'tracingConfiguration' => [
        'enabled' => true || false,
    ],
]);

Parameter Details

Members

definition

Type: string

The Amazon States Language definition of the state machine. See Amazon States Language.

loggingConfiguration

Type: LoggingConfiguration structure

The LoggingConfiguration data type is used to set CloudWatch Logs options.

roleArn

Type: string

The Amazon Resource Name (ARN) of the IAM role of the state machine.

stateMachineArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the state machine.

tracingConfiguration

Type: TracingConfiguration structure

Selects whether X-Ray tracing is enabled.

Result Syntax

[
    'updateDate' => <DateTime>,
]

Result Details

Members

updateDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date and time the state machine was updated.

Errors

InvalidArn:
The provided Amazon Resource Name (ARN) is not valid.
InvalidDefinition:
The provided Amazon States Language definition is not valid.
InvalidLoggingConfiguration:
InvalidTracingConfiguration:
Your tracingConfiguration key does not match, or enabled has not been set to true or false.
MissingRequiredParameter:
Request is missing a required parameter. This error occurs if both definition and roleArn are not specified.
StateMachineDeleting:
The specified state machine is being deleted.
StateMachineDoesNotExist:
The specified state machine does not exist.
ValidationException:
The input does not satisfy the constraints specified by an Amazon Web Services service.

Shapes

ActivityDoesNotExist

Description

The specified activity does not exist.

Members

message

Type: string

ActivityFailedEventDetails

Description

Contains details about an activity that failed during an execution.

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

ActivityLimitExceeded

Description

The maximum number of activities has been reached. Existing activities must be deleted before a new activity can be created.

Members

message

Type: string

ActivityListItem

Description

Contains details about an activity.

Members

activityArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies the activity.

creationDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date the activity is created.

name

Required: Yes
Type: string

The name of the activity.

A name must not contain:

white space
brackets < > { } [ ]
wildcard characters ? *
special characters " # % \ ^ | ~ ` $ & , ; : /
control characters (U+0000-001F, U+007F-009F)

To enable logging with CloudWatch Logs, the name should only contain 0-9, A-Z, a-z, - and _.

ActivityScheduleFailedEventDetails

Description

Contains details about an activity schedule failure that occurred during an execution.

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

ActivityScheduledEventDetails

Description

Contains details about an activity scheduled during an execution.

Members

heartbeatInSeconds

Type: long (int|float)

The maximum allowed duration between two heartbeats for the activity task.

input

Type: string

The JSON data input to the activity task. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

inputDetails

Type: HistoryEventExecutionDataDetails structure

Contains details about the input for an execution history event.

resource

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the scheduled activity.

timeoutInSeconds

Type: long (int|float)

The maximum allowed duration of the activity task.

ActivityStartedEventDetails

Description

Contains details about the start of an activity during an execution.

Members

workerName

Type: string

The name of the worker that the task is assigned to. These names are provided by the workers when calling GetActivityTask.

ActivitySucceededEventDetails

Description

Contains details about an activity that successfully terminated during an execution.

Members

output

Type: string

The JSON data output by the activity task. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

outputDetails

Type: HistoryEventExecutionDataDetails structure

Contains details about the output of an execution history event.

ActivityTimedOutEventDetails

Description

Contains details about an activity timeout that occurred during an execution.

Members

cause

Type: string

A more detailed explanation of the cause of the timeout.

error

Type: string

The error code of the failure.

ActivityWorkerLimitExceeded

Description

The maximum number of workers concurrently polling for activity tasks has been reached.

Members

message

Type: string

BillingDetails

Description

An object that describes workflow billing details.

Members

billedDurationInMilliseconds

Type: long (int|float)

Billed duration of your workflow, in milliseconds.

billedMemoryUsedInMB

Type: long (int|float)

Billed memory consumption of your workflow, in MB.

CloudWatchEventsExecutionDataDetails

Description

Provides details about execution input or output.

Members

included

Type: boolean

Indicates whether input or output was included in the response. Always true for API calls.

CloudWatchLogsLogGroup

Description

Members

logGroupArn

Type: string

The ARN of the the CloudWatch log group to which you want your logs emitted to. The ARN must end with :*

ExecutionAbortedEventDetails

Description

Contains details about an abort of an execution.

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

ExecutionAlreadyExists

Description

The execution has the same name as another execution (but a different input).

Executions with the same name and input are considered idempotent.

Members

message

Type: string

ExecutionDoesNotExist

Description

The specified execution does not exist.

Members

message

Type: string

ExecutionFailedEventDetails

Description

Contains details about an execution failure event.

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

ExecutionLimitExceeded

Description

The maximum number of running executions has been reached. Running executions must end or be stopped before a new execution can be started.

Members

message

Type: string

ExecutionListItem

Description

Contains details about an execution.

Members

executionArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies the execution.

itemCount

Type: int

The total number of items processed in a child workflow execution. This field is returned only if mapRunArn was specified in the ListExecutions API action. If stateMachineArn was specified in ListExecutions, the itemCount field isn't returned.

mapRunArn

Type: string

The Amazon Resource Name (ARN) of a Map Run. This field is returned only if mapRunArn was specified in the ListExecutions API action. If stateMachineArn was specified in ListExecutions, the mapRunArn isn't returned.

name

Required: Yes
Type: string

The name of the execution.

A name must not contain:

white space
brackets < > { } [ ]
wildcard characters ? *
special characters " # % \ ^ | ~ ` $ & , ; : /
control characters (U+0000-001F, U+007F-009F)

To enable logging with CloudWatch Logs, the name should only contain 0-9, A-Z, a-z, - and _.

startDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date the execution started.

stateMachineArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the executed state machine.

status

Required: Yes
Type: string

The current status of the execution.

stopDate

Type: timestamp (string|DateTime or anything parsable by strtotime)

If the execution already ended, the date the execution stopped.

ExecutionStartedEventDetails

Description

Contains details about the start of the execution.

Members

input

Type: string

The JSON data input to the execution. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

inputDetails

Type: HistoryEventExecutionDataDetails structure

Contains details about the input for an execution history event.

roleArn

Type: string

The Amazon Resource Name (ARN) of the IAM role used for executing Lambda tasks.

ExecutionSucceededEventDetails

Description

Contains details about the successful termination of the execution.

Members

output

Type: string

The JSON data output by the execution. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

outputDetails

Type: HistoryEventExecutionDataDetails structure

Contains details about the output of an execution history event.

ExecutionTimedOutEventDetails

Description

Contains details about the execution timeout that occurred during the execution.

Members

cause

Type: string

A more detailed explanation of the cause of the timeout.

error

Type: string

The error code of the failure.

HistoryEvent

Description

Contains details about the events of an execution.

Members

activityFailedEventDetails

Type: ActivityFailedEventDetails structure

Contains details about an activity that failed during an execution.

activityScheduleFailedEventDetails

Type: ActivityScheduleFailedEventDetails structure

Contains details about an activity schedule event that failed during an execution.

activityScheduledEventDetails

Type: ActivityScheduledEventDetails structure

Contains details about an activity scheduled during an execution.

activityStartedEventDetails

Type: ActivityStartedEventDetails structure

Contains details about the start of an activity during an execution.

activitySucceededEventDetails

Type: ActivitySucceededEventDetails structure

Contains details about an activity that successfully terminated during an execution.

activityTimedOutEventDetails

Type: ActivityTimedOutEventDetails structure

Contains details about an activity timeout that occurred during an execution.

executionAbortedEventDetails

Type: ExecutionAbortedEventDetails structure

Contains details about an abort of an execution.

executionFailedEventDetails

Type: ExecutionFailedEventDetails structure

Contains details about an execution failure event.

executionStartedEventDetails

Type: ExecutionStartedEventDetails structure

Contains details about the start of the execution.

executionSucceededEventDetails

Type: ExecutionSucceededEventDetails structure

Contains details about the successful termination of the execution.

executionTimedOutEventDetails

Type: ExecutionTimedOutEventDetails structure

Contains details about the execution timeout that occurred during the execution.

id

Required: Yes
Type: long (int|float)

The id of the event. Events are numbered sequentially, starting at one.

lambdaFunctionFailedEventDetails

Type: LambdaFunctionFailedEventDetails structure

Contains details about a Lambda function that failed during an execution.

lambdaFunctionScheduleFailedEventDetails

Type: LambdaFunctionScheduleFailedEventDetails structure

Contains details about a failed Lambda function schedule event that occurred during an execution.

lambdaFunctionScheduledEventDetails

Type: LambdaFunctionScheduledEventDetails structure

Contains details about a Lambda function scheduled during an execution.

lambdaFunctionStartFailedEventDetails

Type: LambdaFunctionStartFailedEventDetails structure

Contains details about a lambda function that failed to start during an execution.

lambdaFunctionSucceededEventDetails

Type: LambdaFunctionSucceededEventDetails structure

Contains details about a Lambda function that terminated successfully during an execution.

lambdaFunctionTimedOutEventDetails

Type: LambdaFunctionTimedOutEventDetails structure

Contains details about a Lambda function timeout that occurred during an execution.

mapIterationAbortedEventDetails

Type: MapIterationEventDetails structure

Contains details about an iteration of a Map state that was aborted.

mapIterationFailedEventDetails

Type: MapIterationEventDetails structure

Contains details about an iteration of a Map state that failed.

mapIterationStartedEventDetails

Type: MapIterationEventDetails structure

Contains details about an iteration of a Map state that was started.

mapIterationSucceededEventDetails

Type: MapIterationEventDetails structure

Contains details about an iteration of a Map state that succeeded.

mapRunFailedEventDetails

Type: MapRunFailedEventDetails structure

Contains error and cause details about a Map Run that failed.

mapRunStartedEventDetails

Type: MapRunStartedEventDetails structure

Contains details, such as mapRunArn, and the start date and time of a Map Run. mapRunArn is the Amazon Resource Name (ARN) of the Map Run that was started.

mapStateStartedEventDetails

Type: MapStateStartedEventDetails structure

Contains details about Map state that was started.

previousEventId

Type: long (int|float)

The id of the previous event.

stateEnteredEventDetails

Type: StateEnteredEventDetails structure

Contains details about a state entered during an execution.

stateExitedEventDetails

Type: StateExitedEventDetails structure

Contains details about an exit from a state during an execution.

taskFailedEventDetails

Type: TaskFailedEventDetails structure

Contains details about the failure of a task.

taskScheduledEventDetails

Type: TaskScheduledEventDetails structure

Contains details about a task that was scheduled.

taskStartFailedEventDetails

Type: TaskStartFailedEventDetails structure

Contains details about a task that failed to start.

taskStartedEventDetails

Type: TaskStartedEventDetails structure

Contains details about a task that was started.

taskSubmitFailedEventDetails

Type: TaskSubmitFailedEventDetails structure

Contains details about a task that where the submit failed.

taskSubmittedEventDetails

Type: TaskSubmittedEventDetails structure

Contains details about a submitted task.

taskSucceededEventDetails

Type: TaskSucceededEventDetails structure

Contains details about a task that succeeded.

taskTimedOutEventDetails

Type: TaskTimedOutEventDetails structure

Contains details about a task that timed out.

timestamp

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date and time the event occurred.

type

Required: Yes
Type: string

The type of the event.

HistoryEventExecutionDataDetails

Description

Provides details about input or output in an execution history event.

Members

truncated

Type: boolean

Type: string

InvalidLoggingConfiguration

Description

Members

message

Type: string

InvalidName

Description

The provided name is not valid.

Members

message

Type: string

InvalidOutput

Description

The provided JSON output data is not valid.

Members

message

Type: string

InvalidToken

Description

The provided token is not valid.

Members

message

Type: string

InvalidTracingConfiguration

Description

Your tracingConfiguration key does not match, or enabled has not been set to true or false.

Members

message

Type: string

LambdaFunctionFailedEventDetails

Description

Contains details about a Lambda function that failed during an execution.

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

LambdaFunctionScheduleFailedEventDetails

Description

Contains details about a failed Lambda function schedule event that occurred during an execution.

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

LambdaFunctionScheduledEventDetails

Description

Contains details about a Lambda function scheduled during an execution.

Members

input

Type: string

The JSON data input to the Lambda function. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

inputDetails

Type: HistoryEventExecutionDataDetails structure

Contains details about input for an execution history event.

resource

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the scheduled Lambda function.

taskCredentials

Type: TaskCredentials structure

The credentials that Step Functions uses for the task.

timeoutInSeconds

Type: long (int|float)

The maximum allowed duration of the Lambda function.

LambdaFunctionStartFailedEventDetails

Description

Contains details about a lambda function that failed to start during an execution.

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

LambdaFunctionSucceededEventDetails

Description

Contains details about a Lambda function that successfully terminated during an execution.

Members

output

Type: string

The JSON data output by the Lambda function. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

outputDetails

Type: HistoryEventExecutionDataDetails structure

Contains details about the output of an execution history event.

LambdaFunctionTimedOutEventDetails

Description

Contains details about a Lambda function timeout that occurred during an execution.

Members

cause

Type: string

A more detailed explanation of the cause of the timeout.

error

Type: string

The error code of the failure.

LogDestination

Description

Members

cloudWatchLogsLogGroup

Type: CloudWatchLogsLogGroup structure

An object describing a CloudWatch log group. For more information, see AWS::Logs::LogGroup in the CloudFormation User Guide.

LoggingConfiguration

Description

The LoggingConfiguration data type is used to set CloudWatch Logs options.

Members

destinations

Type: Array of LogDestination structures

An array of objects that describes where your execution history events will be logged. Limited to size 1. Required, if your log level is not set to OFF.

includeExecutionData

Type: boolean

Determines whether execution data is included in your log. When set to false, data is excluded.

level

Type: string

Defines which category of execution history events are logged.

MapIterationEventDetails

Description

Contains details about an iteration of a Map state.

Members

index

Type: int

The index of the array belonging to the Map state iteration.

name

Type: string

The name of the iteration’s parent Map state.

MapRunExecutionCounts

Description

Contains details about all of the child workflow executions started by a Map Run.

Members

aborted

Required: Yes
Type: long (int|float)

The total number of child workflow executions that were started by a Map Run and were running, but were either stopped by the user or by Step Functions because the Map Run failed.

failed

Required: Yes
Type: long (int|float)

The total number of child workflow executions that were started by a Map Run, but have failed.

pending

Required: Yes
Type: long (int|float)

The total number of child workflow executions that were started by a Map Run, but haven't started executing yet.

resultsWritten

Required: Yes
Type: long (int|float)

Returns the count of child workflow executions whose results were written by ResultWriter. For more information, see ResultWriter in the Step Functions Developer Guide.

running

Required: Yes
Type: long (int|float)

The total number of child workflow executions that were started by a Map Run and are currently in-progress.

succeeded

Required: Yes
Type: long (int|float)

The total number of child workflow executions that were started by a Map Run and have completed successfully.

timedOut

Required: Yes
Type: long (int|float)

The total number of child workflow executions that were started by a Map Run and have timed out.

total

Required: Yes
Type: long (int|float)

The total number of child workflow executions that were started by a Map Run.

MapRunFailedEventDetails

Description

Contains details about a Map Run failure event that occurred during a state machine execution.

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the Map Run failure.

MapRunItemCounts

Description

Contains details about items that were processed in all of the child workflow executions that were started by a Map Run.

Members

aborted

Required: Yes
Type: long (int|float)

The total number of items processed in child workflow executions that were either stopped by the user or by Step Functions, because the Map Run failed.

failed

Required: Yes
Type: long (int|float)

The total number of items processed in child workflow executions that have failed.

pending

Required: Yes
Type: long (int|float)

The total number of items to process in child workflow executions that haven't started running yet.

resultsWritten

Required: Yes
Type: long (int|float)

Returns the count of items whose results were written by ResultWriter. For more information, see ResultWriter in the Step Functions Developer Guide.

running

Required: Yes
Type: long (int|float)

The total number of items being processed in child workflow executions that are currently in-progress.

succeeded

Required: Yes
Type: long (int|float)

The total number of items processed in child workflow executions that have completed successfully.

timedOut

Required: Yes
Type: long (int|float)

The total number of items processed in child workflow executions that have timed out.

total

Required: Yes
Type: long (int|float)

The total number of items processed in all the child workflow executions started by a Map Run.

MapRunListItem

Description

Contains details about a specific Map Run.

Members

executionArn

Required: Yes
Type: string

The executionArn of the execution from which the Map Run was started.

mapRunArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the Map Run.

startDate

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date on which the Map Run started.

stateMachineArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) of the executed state machine.

stopDate

Type: timestamp (string|DateTime or anything parsable by strtotime)

The date on which the Map Run stopped.

MapRunStartedEventDetails

Description

Contains details about a Map Run that was started during a state machine execution.

Members

mapRunArn

Type: string

The Amazon Resource Name (ARN) of a Map Run that was started.

MapStateStartedEventDetails

Description

Details about a Map state that was started.

Members

length

Type: int

The size of the array for Map state iterations.

MissingRequiredParameter

Description

Request is missing a required parameter. This error occurs if both definition and roleArn are not specified.

Members

message

Type: string

ResourceNotFound

Description

Could not find the referenced resource. Only state machine and activity ARNs are supported.

Members

message

Type: string

resourceName

Type: string

StateEnteredEventDetails

Description

Contains details about a state entered during an execution.

Members

input

Type: string

The string that contains the JSON input data for the state. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

inputDetails

Type: HistoryEventExecutionDataDetails structure

Contains details about the input for an execution history event.

name

Required: Yes
Type: string

The name of the state.

StateExitedEventDetails

Description

Contains details about an exit from a state during an execution.

Members

name

Required: Yes
Type: string

The name of the state.

A name must not contain:

white space
brackets < > { } [ ]
wildcard characters ? *
special characters " # % \ ^ | ~ ` $ & , ; : /
control characters (U+0000-001F, U+007F-009F)

To enable logging with CloudWatch Logs, the name should only contain 0-9, A-Z, a-z, - and _.

output

Type: string

The JSON output data of the state. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

outputDetails

Type: HistoryEventExecutionDataDetails structure

Required: Yes
Type: timestamp (string|DateTime or anything parsable by strtotime)

The date the state machine is created.

name

Required: Yes
Type: string

The name of the state machine.

A name must not contain:

white space
brackets < > { } [ ]
wildcard characters ? *
special characters " # % \ ^ | ~ ` $ & , ; : /
control characters (U+0000-001F, U+007F-009F)

To enable logging with CloudWatch Logs, the name should only contain 0-9, A-Z, a-z, - and _.

stateMachineArn

Required: Yes
Type: string

The Amazon Resource Name (ARN) that identifies the state machine.

type

Required: Yes
Type: string

StateMachineTypeNotSupported

Description

Members

message

Type: string

TaskCredentials

Description

Contains details about the credentials that Step Functions uses for a task.

Members

roleArn

Type: string

The ARN of an IAM role that Step Functions assumes for the task. The role can allow cross-account access to resources.

TaskDoesNotExist

Members

message

Type: string

TaskFailedEventDetails

Description

Contains details about a task failure event.

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

resource

Required: Yes
Type: string

The action of the resource called by a task state.

resourceType

Required: Yes
Type: string

The service name of the resource in a task state.

TaskScheduledEventDetails

Description

Contains details about a task scheduled during an execution.

Members

heartbeatInSeconds

Type: long (int|float)

The maximum allowed duration between two heartbeats for the task.

parameters

Required: Yes
Type: string

The JSON data passed to the resource referenced in a task state. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

region

Required: Yes
Type: string

The region of the scheduled task

resource

Required: Yes
Type: string

The action of the resource called by a task state.

resourceType

Required: Yes
Type: string

The service name of the resource in a task state.

taskCredentials

Type: TaskCredentials structure

The credentials that Step Functions uses for the task.

timeoutInSeconds

Type: long (int|float)

The maximum allowed duration of the task.

TaskStartFailedEventDetails

Description

Contains details about a task that failed to start during an execution.

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

resource

Required: Yes
Type: string

The action of the resource called by a task state.

resourceType

Required: Yes
Type: string

The service name of the resource in a task state.

TaskStartedEventDetails

Description

Contains details about the start of a task during an execution.

Members

resource

Required: Yes
Type: string

The action of the resource called by a task state.

resourceType

Required: Yes
Type: string

The service name of the resource in a task state.

TaskSubmitFailedEventDetails

Description

Contains details about a task that failed to submit during an execution.

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

resource

Required: Yes
Type: string

The action of the resource called by a task state.

resourceType

Required: Yes
Type: string

The service name of the resource in a task state.

TaskSubmittedEventDetails

Description

Contains details about a task submitted to a resource .

Members

output

Type: string

The response from a resource when a task has started. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

outputDetails

Type: HistoryEventExecutionDataDetails structure

Contains details about the output of an execution history event.

resource

Required: Yes
Type: string

The action of the resource called by a task state.

resourceType

Required: Yes
Type: string

The service name of the resource in a task state.

TaskSucceededEventDetails

Description

Contains details about the successful completion of a task state.

Members

output

Type: string

The full JSON response from a resource when a task has succeeded. This response becomes the output of the related task. Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.

outputDetails

Type: HistoryEventExecutionDataDetails structure

Contains details about the output of an execution history event.

resource

Required: Yes
Type: string

The action of the resource called by a task state.

resourceType

Required: Yes
Type: string

The service name of the resource in a task state.

TaskTimedOut

Members

message

Type: string

TaskTimedOutEventDetails

Description

Contains details about a resource timeout that occurred during an execution.

Members

cause

Type: string

A more detailed explanation of the cause of the failure.

error

Type: string

The error code of the failure.

resource

Required: Yes
Type: string

The action of the resource called by a task state.

resourceType

Required: Yes
Type: string

The service name of the resource in a task state.

TooManyTags

Description

You've exceeded the number of tags allowed for a resource. See the Limits Topic in the Step Functions Developer Guide.

Members

message

Type: string

resourceName

Type: string

TracingConfiguration

Description

Selects whether or not the state machine's X-Ray tracing is enabled. Default is false

Members

enabled

Type: boolean

When set to true, X-Ray tracing is enabled.

ValidationException

Description

The input does not satisfy the constraints specified by an Amazon Web Services service.

Members

message

Type: string

reason

Type: string

The input does not satisfy the constraints specified by an Amazon Web Services service.

Namespaces

Classes

Interfaces

Traits

Exceptions

Functions

AWS Step Functions 2016-11-23

Operation Summary

Paginators

Operations

CreateActivity

Parameter Syntax

Parameter Details

Members

Result Syntax

Result Details

Members

Errors

CreateStateMachine

Parameter Syntax

Parameter Details

Members

Result Syntax

Result Details

Members

Errors

DeleteActivity

Parameter Syntax

Parameter Details

Members

Result Syntax

Result Details

Errors

DeleteStateMachine

Parameter Syntax

Parameter Details

Members

Result Syntax

Result Details

Errors

DescribeActivity

Parameter Syntax

Parameter Details

Members

Result Syntax

Result Details

Members

Errors

DescribeExecution

Parameter Syntax

Parameter Details

Members

Result Syntax

Result Details

Members

Errors

DescribeMapRun

Parameter Syntax

Parameter Details

Members

Result Syntax

Result Details

Members

Errors

DescribeStateMachine

Parameter Syntax

Parameter Details

Members

Result Syntax

Result Details

Members

Errors

DescribeStateMachineForExecution

Parameter Syntax

Parameter Details

Members

Result Syntax

Result Details

Members

Errors