AWS Tools for Windows PowerShell
Command Reference

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Synopsis

Calls the AWS Step Functions StartExecution API operation.

Syntax

Start-SFNExecution
-StateMachineArn <String>
-Input <String>
-Name <String>
-TraceHeader <String>
-Select <String>
-Force <SwitchParameter>
-ClientConfig <AmazonStepFunctionsConfig>

Description

Starts a state machine execution. A qualified state machine ARN can either refer to a Distributed Map state defined within a state machine, a version ARN, or an alias ARN. The following are some examples of qualified and unqualified state machine ARNs:
  • The following qualified state machine ARN refers to a Distributed Map state with a label mapStateLabel in a state machine named myStateMachine. arn:partition:states:region:account-id:stateMachine:myStateMachine/mapStateLabel If you provide a qualified state machine ARN that refers to a Distributed Map state, the request fails with ValidationException.
  • The following qualified state machine ARN refers to an alias named PROD. arn:<partition>:states:<region>:<account-id>:stateMachine:<myStateMachine:PROD> If you provide a qualified state machine ARN that refers to a version ARN or an alias ARN, the request starts execution for that version or alias.
  • The following unqualified state machine ARN refers to a state machine named myStateMachine. arn:<partition>:states:<region>:<account-id>:stateMachine:<myStateMachine>
If you start an execution with an unqualified state machine ARN, Step Functions uses the latest revision of the state machine for the execution. To start executions of a state machine version, call StartExecution and provide the version ARN or the ARN of an alias that points to the version. StartExecution is idempotent for STANDARD workflows. For a STANDARD workflow, if you call StartExecution with the same name and input as a running execution, the call succeeds and return the same response as the original request. If the execution is closed or if the input is different, it returns a 400 ExecutionAlreadyExists error. You can reuse names after 90 days. StartExecution isn't idempotent for EXPRESS workflows.

Parameters

-ClientConfig <AmazonStepFunctionsConfig>
Amazon.PowerShell.Cmdlets.SFN.AmazonStepFunctionsClientCmdlet.ClientConfig
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Force <SwitchParameter>
This parameter overrides confirmation prompts to force the cmdlet to continue its operation. This parameter should always be used with caution.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Input <String>
The string that contains the JSON input data for the execution, for example:"{\"first_name\" : \"Alejandro\"}"If you don't include any JSON input data, you still must include the two braces, for example: "{}"Length constraints apply to the payload size, and are expressed as bytes in UTF-8 encoding.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Name <String>
Optional 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.If you don't provide a name for the execution, Step Functions automatically generates a universally unique identifier (UUID) as the execution name.A name must not contain:
  • white space
  • brackets < > { } [ ]
  • wildcard characters ? *
  • special characters " # % \ ^ | ~ ` $ & , ; : /
  • control characters (U+0000-001F, U+007F-009F, U+FFFE-FFFF)
  • surrogates (U+D800-DFFF)
  • invalid characters ( U+10FFFF)
To enable logging with CloudWatch Logs, the name should only contain 0-9, A-Z, a-z, - and _.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Select <String>
Use the -Select parameter to control the cmdlet output. The default value is '*'. Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.StepFunctions.Model.StartExecutionResponse). Specifying the name of a property of type Amazon.StepFunctions.Model.StartExecutionResponse will result in that property being returned. Specifying -Select '^ParameterName' will result in the cmdlet returning the selected cmdlet parameter value.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-StateMachineArn <String>
The Amazon Resource Name (ARN) of the state machine to execute.The stateMachineArn parameter accepts one of the following inputs:
  • An unqualified state machine ARN – Refers to a state machine ARN that isn't qualified with a version or alias ARN. The following is an example of an unqualified state machine ARN.arn:<partition>:states:<region>:<account-id>:stateMachine:<myStateMachine>Step Functions doesn't associate state machine executions that you start with an unqualified ARN with a version. This is true even if that version uses the same revision that the execution used.
  • A state machine version ARN – Refers to a version ARN, which is a combination of state machine ARN and the version number separated by a colon (:). The following is an example of the ARN for version 10. arn:<partition>:states:<region>:<account-id>:stateMachine:<myStateMachine>:10Step Functions doesn't associate executions that you start with a version ARN with any aliases that point to that version.
  • A state machine alias ARN – Refers to an alias ARN, which is a combination of state machine ARN and the alias name separated by a colon (:). The following is an example of the ARN for an alias named PROD.arn:<partition>:states:<region>:<account-id>:stateMachine:<myStateMachine:PROD>Step Functions associates executions that you start with an alias ARN with that alias and the state machine version used for that execution.
Required?True
Position?1
Accept pipeline input?True (ByValue, ByPropertyName)
-TraceHeader <String>
Passes the X-Ray trace header. The trace header can also be passed in the request payload. For X-Ray traces, all Amazon Web Services services use the X-Amzn-Trace-Id header from the HTTP request. Using the header is the preferred mechanism to identify a trace. StartExecution and StartSyncExecution API operations can also use traceHeader from the body of the request payload. If both sources are provided, Step Functions will use the header value (preferred) over the value in the request body.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)

Common Credential and Region Parameters

-AccessKey <String>
The AWS access key for the user account. This can be a temporary access key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAK
-Credential <AWSCredentials>
An AWSCredentials object instance containing access and secret key information, and optionally a token for session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-EndpointUrl <String>
The endpoint to make the call against.Note: This parameter is primarily for internal AWS use and is not required/should not be specified for normal usage. The cmdlets normally determine which endpoint to call based on the region specified to the -Region parameter or set as default in the shell (via Set-DefaultAWSRegion). Only specify this parameter if you must direct the call to a specific custom endpoint.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-NetworkCredential <PSCredential>
Used with SAML-based authentication when ProfileName references a SAML role profile. Contains the network credentials to be supplied during authentication with the configured identity provider's endpoint. This parameter is not required if the user's default network identity can or should be used during authentication.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-ProfileLocation <String>
Used to specify the name and location of the ini-format credential file (shared with the AWS CLI and other AWS SDKs)If this optional parameter is omitted this cmdlet will search the encrypted credential file used by the AWS SDK for .NET and AWS Toolkit for Visual Studio first. If the profile is not found then the cmdlet will search in the ini-format credential file at the default location: (user's home directory)\.aws\credentials.If this parameter is specified then this cmdlet will only search the ini-format credential file at the location given.As the current folder can vary in a shell or during script execution it is advised that you use specify a fully qualified path instead of a relative path.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAWSProfilesLocation, ProfilesLocation
-ProfileName <String>
The user-defined name of an AWS credentials or SAML-based role profile containing credential information. The profile is expected to be found in the secure credential file shared with the AWS SDK for .NET and AWS Toolkit for Visual Studio. You can also specify the name of a profile stored in the .ini-format credential file used with the AWS CLI and other AWS SDKs.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesStoredCredentials, AWSProfileName
-Region <Object>
The system name of an AWS region or an AWSRegion instance. This governs the endpoint that will be used when calling service operations. Note that the AWS resources referenced in a call are usually region-specific.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesRegionToCall
-SecretKey <String>
The AWS secret key for the user account. This can be a temporary secret key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesSK, SecretAccessKey
-SessionToken <String>
The session token if the access and secret keys are temporary session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesST

Outputs

Amazon.StepFunctions.Model.StartExecutionResponse
This cmdlet returns an Amazon.StepFunctions.Model.StartExecutionResponse object containing multiple properties.
AWS Tools for PowerShell User Guide

Supported Version

AWS Tools for PowerShell: 2.x.y.z