节点下载图片时，按 image2oss 的方式将 URL 中的 oss-cn-hangzhou.aliyuncs.com 替换为 oss-cn-hangzhou-internal.aliyuncs.com，无需环境变量，运行环境需能访问阿里云 VPC 内网。通常该改写仅用于本地下载；GPU 图像预处理节点的 image_delivery=url 模式也会使用内网 OSS 链接，供杭州模型服务下载。其他节点返回的图片 URL 和传给下游服务的 URL 保持原样。

GPU 图像服务 URL 传图

SAM2、DWPose、LineArt、DepthAnythingV2、RMBG、衣物/时尚/身体分割的 V1/V2 节点提供可选参数 image_delivery：

base64（默认）：继续将 IMAGE tensor 编码为 PNG data URL，旧工作流无需修改。
url：将当前输入 tensor 编码为原尺寸 RGB PNG，上传 OSS 后将链接写入请求的 image 字段。适合大图经过海外公网网关的场景，不改变 bbox 坐标、推理参数或响应格式。

例如日志中的 ZhiYiSAM2SegmentNodeV2，保留原有 env、service_url、dilate 等配置，只增加 "image_delivery": "url"。env 控制模型服务地址，image_delivery 独立控制图片传输方式；切换“海外环境”不会自动启用 URL 模式。更新插件后需重启 ComfyUI，界面刷新后可在节点末尾选择该参数。

URL 模式沿用现有 OSS 上传配置：FD_OSS_BUCKET_NAME、FD_OSS_ENDPOINT、FD_OSS_URL_PREFIX，以及 AK 凭证 FD_OSS_ACCESS_KEY_ID / FD_OSS_ACCESS_KEY_SECRET 或 STS 配置 FD_OSS_STS_URL / FD_OSS_STS_KEY。可通过 FD_OSS_URL_PATH_PREFIX_GPU_INPUT 覆盖对象路径前缀，默认 devops/comfyui/segment_img；文件名为 PNG 内容的 MD5。每次执行仍会调用 OSS 上传，相同内容使用相同对象路径。

链接必须允许模型服务无需特殊请求头直接 GET，上传工具不会自动签名私有对象。杭州 OSS 域名会改为内网域名，因此模型服务需能访问杭州 OSS VPC 网络；其他 CDN/自定义域名保持原样。这里上传的是节点当前收到的图像，不会直接复用上游加载前的图片 URL，以保留裁剪/缩放等处理结果。

服务端图片上限为 20MB（可由服务端配置调整），URL 下载和推理仍需要时间，调用 timeout 建议至少 60 秒。URL 模式减少模型 API 的 JSON 请求体，不保证消除所有连接、下载或排队超时。422 INVALID_IMAGE、413 PAYLOAD_TOO_LARGE 直接透出错误，不自动退回 base64 或重试；OSS 上传失败也直接报错。

若模型服务开启鉴权，分别配置 FD_SAM2_API_KEY 和 FD_DWPOSE_API_KEY，节点会对推理与健康检查请求附加 Authorization: Bearer <KEY>。未配置时不附加鉴权头。

Note

This projected was created with a cookiecutter template. It helps you start writing custom nodes without worrying about the Python setup.

Quickstart

Install ComfyUI.
Install ComfyUI-Manager
Look up this extension in ComfyUI-Manager. If you are installing manually, clone this repository under ComfyUI/custom_nodes.
Restart ComfyUI.

Features

A list of features

Develop

To install the dev dependencies and pre-commit (will run the ruff hook), do:

cd Comfyui_Fd_Nodes
pip install -e .[dev]
pre-commit install

The -e flag above will result in a "live" install, in the sense that any changes you make to your node extension will automatically be picked up the next time you run ComfyUI.

Publish to Github

Install Github Desktop or follow these instructions for ssh.

Create a Github repository that matches the directory name.
Push the files to Git

git add .
git commit -m "project scaffolding"
git push

Writing custom nodes

An example custom node is located in node.py. To learn more, read the docs.

Tests

This repo contains unit tests written in Pytest in the tests/ directory. It is recommended to unit test your custom node.

build-pipeline.yml will run pytest and linter on any open PRs
validate.yml will run node-diff to check for breaking changes

Publishing to Registry

If you wish to share this custom node with others in the community, you can publish it to the registry. We've already auto-populated some fields in pyproject.toml under tool.comfy, but please double-check that they are correct.

You need to make an account on https://registry.comfy.org and create an API key token.

Go to the registry. Login and create a publisher id (everything after the @ sign on your registry profile).
Add the publisher id into the pyproject.toml file.
Create an api key on the Registry for publishing from Github. Instructions.
Add it to your Github Repository Secrets as REGISTRY_ACCESS_TOKEN.

A Github action will run on every git push. You can also run the Github action manually. Full instructions here. Join our discord if you have any questions!

README.md Unescape Escape

comfyui-fd-nodes