Method transformResponse

packages/ai-fal/src/adapters/image.ts:131–163

(
    response: Result<OutputType<TModel>>,
  )

  }

  private transformResponse(
    response: Result<OutputType<TModel>>,
  ): ImageGenerationResult {
    const images: Array<GeneratedImage> = []
    const data = response.data

    // Handle array of images (most models return { images: [...] })
    if ('images' in data && Array.isArray(data.images)) {
      for (const img of data.images) {
        images.push(this.parseImage(img))
      }
    }
    // Handle single image response (some models return { image: {...} })
    else if ('image' in data && data.image && typeof data.image === 'object') {
      images.push(this.parseImage(data.image))
    }

    if (images.length === 0) {
      throw new Error(
        'Unexpected fal image response shape. Expected images[] or image{}. Got keys: ' +
          Object.keys(data).join(','),
      )
    }

    const usage = buildFalUsage(takeBillableUnits(response.requestId))

    return {
      id: response.requestId || this.generateId(),
      model: this.model,
      images,
      ...(usage ? { usage } : {}),
    }
  }

  private parseImage(img: unknown): GeneratedImage {
    let url: string