Adobe Creative Cloud Firefly Text to Image with Style Reference

arazzo: 1.0.1
info:
  title: Adobe Creative Cloud Firefly Text to Image with Style Reference
  summary: Upload a style reference image then generate commercial-safe images from a text prompt.
  description: >-
    A core Adobe Firefly generative pattern. The workflow first uploads a
    reference image to temporary Firefly storage to obtain an upload ID, then
    calls the text-to-image generation endpoint with that image supplied as a
    style reference so the generated variations inherit the look of the
    reference. Every step spells out its request inline, including the bearer
    token and x-api-key, so the flow can be read and executed without opening
    the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: fireflyApi
  url: ../openapi/adobe-firefly-api-openapi-original.yml
  type: openapi
workflows:
- workflowId: firefly-text-to-image-generate
  summary: Upload a style reference and generate images from a text prompt.
  description: >-
    Uploads a reference image to Firefly temporary storage, then generates a
    set of image variations from a text prompt guided by that style reference.
  inputs:
    type: object
    required:
    - accessToken
    - apiKey
    - referenceImage
    - prompt
    properties:
      accessToken:
        type: string
        description: OAuth 2.0 bearer access token from the Adobe IMS token endpoint.
      apiKey:
        type: string
        description: Client ID (x-api-key) from the Adobe Developer Console project.
      referenceImage:
        type: string
        description: Binary contents of the reference image to upload (PNG/JPEG/WebP).
      contentType:
        type: string
        description: MIME type of the reference image being uploaded.
        default: image/png
      prompt:
        type: string
        description: Text description of the image to generate.
      negativePrompt:
        type: string
        description: Text describing elements to exclude from generation.
        default: ""
      numVariations:
        type: integer
        description: Number of image variations to generate (1-4).
        default: 1
  steps:
  - stepId: uploadReference
    description: >-
      Upload the reference image to Firefly temporary storage and capture the
      returned upload ID for use as a style reference.
    operationId: uploadImage
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: x-api-key
      in: header
      value: $inputs.apiKey
    requestBody:
      contentType: $inputs.contentType
      payload: $inputs.referenceImage
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      uploadId: $response.body#/images/0/id
  - stepId: generate
    description: >-
      Generate image variations from the text prompt, supplying the uploaded
      image as a style reference so the output inherits its look.
    operationId: generateImages
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.accessToken"
    - name: x-api-key
      in: header
      value: $inputs.apiKey
    requestBody:
      contentType: application/json
      payload:
        prompt: $inputs.prompt
        negativePrompt: $inputs.negativePrompt
        numVariations: $inputs.numVariations
        style:
          referenceImage:
            source:
              uploadId: $steps.uploadReference.outputs.uploadId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      firstImageUrl: $response.body#/outputs/0/image/url
      firstSeed: $response.body#/outputs/0/seed
      outputs: $response.body#/outputs
  outputs:
    uploadId: $steps.uploadReference.outputs.uploadId
    firstImageUrl: $steps.generate.outputs.firstImageUrl
    generatedOutputs: $steps.generate.outputs.outputs