> ## Documentation Index
> Fetch the complete documentation index at: https://docs.e6data.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Preview rerun

> preview rerun. POST /api/v1/workloads/{workload_id}/runs/{run_id}/rerun/preview. Uses the same payload, validation, revision checks and response as the unified HTTP API.

ReferenceApplies to: Unified engine deployments

## Related guidance

[Addresses and access](https://docs.e6data.com/transformation/http/access.md) · [Request identity](https://docs.e6data.com/transformation/http/request-identity.md) · [Errors and recovery](https://docs.e6data.com/transformation/http/errors.md) · [Pagination and results](https://docs.e6data.com/transformation/http/results.md)


## OpenAPI

````yaml openapi/transformation.json POST /api/v1/workloads/{workload_id}/runs/{run_id}/rerun/preview
openapi: 3.1.0
info:
  description: >-
    HTTP contracts for the Unified engine. Requests use the connected
    deployment's access model and configured owner. Response examples are
    illustrative; inspect your engine response in your client. SQL-managed
    secrets, credentials, streaming pipelines and maintenance run through
    session operations.
  title: Laminar Unified HTTP API
  version: v1
servers:
  - url: https://engine.example.com
    description: >-
      Example engine origin. Replace it with your deployment URL and any API
      mount prefix.
security: []
paths:
  /api/v1/workloads/{workload_id}/runs/{run_id}/rerun/preview:
    post:
      tags:
        - Workloads
      summary: preview rerun
      description: >-
        preview rerun. POST
        /api/v1/workloads/{workload_id}/runs/{run_id}/rerun/preview. Uses the
        same payload, validation, revision checks and response as the unified
        HTTP API.
      operationId: preview_rerun
      parameters:
        - in: path
          name: run_id
          required: true
          schema:
            format: uuid
            type: string
        - in: path
          name: workload_id
          required: true
          schema:
            format: uuid
            type: string
      requestBody:
        content:
          application/json:
            schema:
              $ref: >-
                #/components/schemas/Input_shared_common_src_workflow_rs_RerunRequest
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/shared_common_src_workflow_rs_RerunPlan'
          description: Successful response.
        default:
          content:
            application/json:
              example:
                error:
                  code: invalid_request
                  message: Check the request fields
              schema:
                $ref: '#/components/schemas/ApiError'
          description: A rejected or failed request. Inspect error.code before retrying.
components:
  schemas:
    Input_shared_common_src_workflow_rs_RerunRequest:
      additionalProperties: false
      properties:
        failed_only:
          type: boolean
        include_downstream:
          type: boolean
        submission_id:
          $ref: '#/components/schemas/Input_shared_common_src_lib_rs_SubmissionId'
        tasks:
          items:
            type: string
          type: array
      required:
        - submission_id
        - tasks
      type: object
    shared_common_src_workflow_rs_RerunPlan:
      properties:
        blocked:
          additionalProperties:
            type: string
          type: object
        execute:
          items:
            type: string
          type: array
        reuse:
          items:
            type: string
          type: array
        source_run_id:
          $ref: '#/components/schemas/shared_common_src_lib_rs_WorkloadRunId'
      required:
        - source_run_id
        - execute
        - reuse
        - blocked
      type: object
    ApiError:
      properties:
        error:
          properties:
            code:
              type: string
            message:
              type: string
          required:
            - code
            - message
          type: object
      required:
        - error
      type: object
    Input_shared_common_src_lib_rs_SubmissionId:
      format: uuid
      type: string
    shared_common_src_lib_rs_WorkloadRunId:
      format: uuid
      type: string

````

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