示例

把原始字节 POST 到 Worker，走 input → transform → output。不构造 imagedelivery.net 或 /cdn-cgi/image/ URL。

export default {
  async fetch(request: Request, env: Env): Promise<Response> {
    if (!request.body) return new Response("empty", { status: 400 });
    const out = await env.IMAGES
      .input(request.body)
      .transform({ width: 320, fit: "scale-down" })
      .output({ format: "image/webp", quality: 80 });
    return out.response();
  },
} satisfies ExportedHandler<{ IMAGES: ImagesBinding }>;

{
  "name": "img-app",
  "main": "src/index.ts",
  "images": { "binding": "IMAGES" }
}

链是 input / transform / draw / output / response() / info()。完整选项见指南。这是本机图像变换（有大小限制） binding，不是托管 Cloudflare Images。配置见上手。