Civitai Image Generation Submit and Poll

arazzo: 1.0.1
info:
  title: Civitai Image Generation Submit and Poll
  summary: Submit an image generation workflow, poll until it finishes, and collect the output blobs.
  description: >-
    The core text-to-image generation pattern on the Orchestration API. The
    workflow submits a single imageGen step with a prompt and engine, polls the
    workflow status until it reaches a terminal state, and then reads the
    completed workflow to collect the generated output blob URLs. The poll step
    loops on itself while the workflow is still processing. Every step spells out
    its request inline so the flow can be read and executed without opening the
    underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: workflowsApi
  url: ../openapi/civitai-workflows-api-openapi.yml
  type: openapi
workflows:
- workflowId: image-generation-poll
  summary: Submit an imageGen workflow, poll to completion, and read the outputs.
  description: >-
    Submits a text-to-image workflow step, polls the workflow until it succeeds
    or fails, then reads the final workflow for output blob URLs.
  inputs:
    type: object
    required:
    - apiKey
    - engine
    - prompt
    properties:
      apiKey:
        type: string
        description: Civitai personal API token used as a Bearer credential.
      engine:
        type: string
        description: Generation engine identifier (e.g. flux2, sdxl, sd1, z-image).
      prompt:
        type: string
        description: The positive text prompt for the image.
      negativePrompt:
        type: string
        description: Optional negative prompt.
      width:
        type: integer
        description: Output image width in pixels.
      height:
        type: integer
        description: Output image height in pixels.
      steps:
        type: integer
        description: Number of sampling steps.
      cfgScale:
        type: number
        description: Classifier-free guidance scale.
      quantity:
        type: integer
        description: Number of images to generate (1-10).
  steps:
  - stepId: submitGeneration
    description: >-
      Submit a single imageGen step with the supplied prompt and engine and
      capture the new workflow id.
    operationId: submitWorkflow
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiKey
    requestBody:
      contentType: application/json
      payload:
        steps:
        - $type: imageGen
          name: generate
          input:
            engine: $inputs.engine
            prompt: $inputs.prompt
            negativePrompt: $inputs.negativePrompt
            width: $inputs.width
            height: $inputs.height
            steps: $inputs.steps
            cfgScale: $inputs.cfgScale
            quantity: $inputs.quantity
    successCriteria:
    - condition: $statusCode == 202
    outputs:
      workflowId: $response.body#/id
      submittedStatus: $response.body#/status
  - stepId: pollWorkflow
    description: >-
      Poll the workflow until it reaches a terminal state. While the workflow is
      still processing, loop back and poll again; on success continue to read the
      outputs.
    operationId: getWorkflow
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiKey
    - name: workflowId
      in: path
      value: $steps.submitGeneration.outputs.workflowId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/status
    onSuccess:
    - name: stillRunning
      type: goto
      stepId: pollWorkflow
      criteria:
      - context: $response.body
        condition: $.status == 'processing' || $.status == 'preparing' || $.status == 'unassigned'
        type: jsonpath
    - name: finished
      type: goto
      stepId: readOutputs
      criteria:
      - context: $response.body
        condition: $.status == 'succeeded'
        type: jsonpath
    - name: failed
      type: end
      criteria:
      - context: $response.body
        condition: $.status == 'failed' || $.status == 'expired' || $.status == 'canceled'
        type: jsonpath
  - stepId: readOutputs
    description: >-
      Read the completed workflow and collect the generated output blob URLs from
      the first step's first job.
    operationId: getWorkflow
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiKey
    - name: workflowId
      in: path
      value: $steps.submitGeneration.outputs.workflowId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/status
      firstBlobUrl: $response.body#/steps/0/jobs/0/result/blobs/0/url
      cost: $response.body#/cost/total
  outputs:
    workflowId: $steps.submitGeneration.outputs.workflowId
    status: $steps.readOutputs.outputs.status
    firstBlobUrl: $steps.readOutputs.outputs.firstBlobUrl
    cost: $steps.readOutputs.outputs.cost