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ListWorkflowBuildVersions - EC2 Image Builder

ListWorkflowBuildVersions

Returns a list of build versions for a specific workflow resource.

Request Syntax

POST /ListWorkflowBuildVersions HTTP/1.1 Content-type: application/json { "maxResults": number, "nextToken": "string", "workflowVersionArn": "string" }

URI Request Parameters

The request does not use any URI parameters.

Request Body

The request accepts the following data in JSON format.

maxResults

The maximum number of items to return in a single request.

Type: Integer

Valid Range: Minimum value of 1. Maximum value of 25.

Required: No

nextToken

A token to specify where to start paginating. Use the nextToken value from a previously truncated response.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 65535.

Required: No

workflowVersionArn

The Amazon Resource Name (ARN) of the workflow resource for which to get a list of build versions. The version segments can contain wildcards (x) to match multiple versions of the workflow. If you don't specify an ARN, the response lists build versions for all of the workflows in your account.

Type: String

Pattern: ^arn:aws(?:-[a-z]+)*:imagebuilder:[a-z]{2,}(?:-[a-z]+)+-[0-9]+:(?:[0-9]{12}|aws(?:-[a-z-]+)?):workflow/(build|test|distribution)/[a-z0-9-_]+/(?:[0-9]+|x)\.(?:[0-9]+|x)\.(?:[0-9]+|x)$

Required: No

Response Syntax

HTTP/1.1 200 Content-type: application/json { "nextToken": "string", "workflowSummaryList": [ { "arn": "string", "changeDescription": "string", "dateCreated": "string", "description": "string", "name": "string", "owner": "string", "state": { "reason": "string", "status": "string" }, "tags": { "string" : "string" }, "type": "string", "version": "string" } ] }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

nextToken

The next token used for paginated responses. When this field isn't empty, there are additional elements that the service hasn't included in this request. Use this token with the next request to retrieve additional objects.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 65535.

workflowSummaryList

A list that contains metadata for the build versions of the workflow resource specified in the request.

Type: Array of WorkflowSummary objects

Errors

For information about the errors that are common to all actions, see Common Error Types.

CallRateLimitExceededException

You have exceeded the permitted request rate for the Amazon EC2 APIs that Image Builder calls on your behalf. Retry with an increasing or variable delay between requests.

HTTP Status Code: 429

ClientException

A generic client error. This error usually indicates that the request failed a validation check, such as when a downstream service rejects a configured value.

HTTP Status Code: 400

ForbiddenException

You are not authorized to perform the requested operation.

HTTP Status Code: 403

InvalidPaginationTokenException

You have provided an invalid pagination token in your request.

HTTP Status Code: 400

InvalidRequestException

The request is malformed or otherwise invalid. Verify the request and try again.

HTTP Status Code: 400

ServiceException

An internal server error occurred while Image Builder processed the request. Retrying the request may succeed.

HTTP Status Code: 500

ServiceUnavailableException

The service is unable to process your request at this time.

HTTP Status Code: 503

Examples

List the build versions of a workflow

The following example lists the build versions that exist for version 1.0.0 of the specified workflow, with the most recent build version first and the change description for each build version showing what changed.

Sample Request

POST /ListWorkflowBuildVersions HTTP/1.1 Content-type: application/json { "workflowVersionArn": "arn:aws:imagebuilder:us-west-2:111122223333:workflow/build/my-example-workflow/1.0.0" }

Sample Response

HTTP/1.1 200 Content-type: application/json { "workflowSummaryList": [ { "arn": "arn:aws:imagebuilder:us-west-2:111122223333:workflow/build/my-example-workflow/1.0.0/2", "name": "my-example-workflow", "version": "1.0.0", "description": "Workflow to build my example image", "changeDescription": "Added a step to collect image metadata from the build instance", "type": "BUILD", "owner": "111122223333", "dateCreated": "2026-09-09T19:56:38.339Z" }, { "arn": "arn:aws:imagebuilder:us-west-2:111122223333:workflow/build/my-example-workflow/1.0.0/1", "name": "my-example-workflow", "version": "1.0.0", "description": "Workflow to build my example image", "changeDescription": "Initial version", "type": "BUILD", "owner": "111122223333", "dateCreated": "2026-09-09T19:56:35.992Z" } ] }

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: