Function generateWithFalAI

apps/sim/app/api/tools/image/route.ts:732–962

(
  apiKey: string,
  body: ImageToolBody,
  requestId: string,
  logger: ReturnType<typeof createLogger>
)

}

async function generateWithFalAI(
  apiKey: string,
  body: ImageToolBody,
  requestId: string,
  logger: ReturnType<typeof createLogger>
): Promise<GeneratedImageResult> {
  const model = body.model || 'nano-banana-2'
  const modelConfig = FALAI_IMAGE_MODEL_CONFIGS[model]
  if (!modelConfig) {
    throw new Error(`Unknown Fal.ai image model: ${model}`)
  }

  const requestBody: Record<string, string | number | boolean> = {
    prompt: body.prompt,
    sync_mode: false,
  }

  if (modelConfig.maxNumImages) {
    requestBody.num_images = clampInteger(body.numImages, 1, modelConfig.maxNumImages, 1)
  }
  if (modelConfig.supportsSeed && body.seed !== undefined) {
    requestBody.seed = body.seed
  }
  if (modelConfig.sizeOptions && modelConfig.defaultSize) {
    requestBody.image_size = pickAllowed(
      body.size,
      modelConfig.sizeOptions,
      modelConfig.defaultSize
    )
  }
  if (modelConfig.aspectRatios && modelConfig.defaultAspectRatio) {
    requestBody.aspect_ratio = pickAllowed(
      body.aspectRatio,
      modelConfig.aspectRatios,
      modelConfig.defaultAspectRatio
    )
  }
  if (modelConfig.resolutionOptions && modelConfig.defaultResolution) {
    requestBody.resolution = pickAllowed(
      body.resolution,
      modelConfig.resolutionOptions,
      modelConfig.defaultResolution
    )
  }
  if (modelConfig.outputFormats && modelConfig.defaultOutputFormat) {
    requestBody.output_format = pickAllowed(
      body.outputFormat,
      modelConfig.outputFormats,
      modelConfig.defaultOutputFormat
    )
  }
  if (modelConfig.qualityOptions && modelConfig.defaultQuality) {
    requestBody.quality = pickAllowed(
      body.quality,
      modelConfig.qualityOptions,
      modelConfig.defaultQuality
    )
  }