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ComfyPeeper Companion v1.0.0

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ComfyUI extension that bridges with the ComfyPeeper Discord plugin:
- GET /comfypeeper/info advertises a friendly name + capabilities
- POST /comfypeeper/load loads a workflow into the open editor tab
- POST /comfypeeper/send uploads an output image to a Discord webhook
- right-click "Send to Discord" on image nodes
- "Send to Discord (ComfyPeeper)" node: auto-post every image (workflow
  embedded in the PNG) to the webhook

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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EthanfelandClaude Opus 4.8 committed 2026-06-23 11:22:13 +02:00
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# local config (holds the Discord webhook secret)
config.json
# python bytecode
__pycache__/
*.pyc
# editor / OS
.DS_Store
.vscode/
.idea/
LICENSE
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The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.
README.md
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# ComfyPeeper Companion (ComfyUI extension)
A small ComfyUI extension that pairs with the **[ComfyPeeper](https://github.com/ethanfel/Discord-ComfyPeeper)**
Discord plugin to enable two things plain ComfyUI's API can't:
- **Send to ComfyUI** — ComfyPeeper can load a workflow straight into your **open ComfyUI
editor tab** (not just queue it headless).
- **Send to Discord** — get an output image into a Discord channel, either by **right-click →
📤 Send to Discord**, or by wiring the **Send to Discord (ComfyPeeper)** node into your graph
so every generation is posted automatically. Both go to a Discord **webhook** you configure;
the image carries its workflow in its PNG metadata, so ComfyPeeper detects it on the Discord side.
It also advertises a **friendly name** so ComfyPeeper can label the server and only show the
companion buttons where the companion is actually installed.
## Install
```bash
cd <ComfyUI>/custom_nodes
git clone https://github.com/Ethanfel/ComfyUI-ComfyPeeper-compagnon
cd ComfyUI-ComfyPeeper-compagnon
cp config.example.json config.json
# edit config.json: set "name", and "discord_webhook" if you want Send to Discord
# restart ComfyUI
```
Verify: `curl http://127.0.0.1:8188/comfypeeper/info` → `{"app":"ComfyPeeper","name":"…",…}`.
## config.json
| key | meaning |
|-----|---------|
| `name` | Friendly name shown by ComfyPeeper (e.g. `"4090 rig"`). |
| `discord_webhook` | A Discord channel **webhook URL** (Channel → Edit → Integrations → Webhooks). Leave empty to disable **Send to Discord**. |
## Nodes
| node | what it does |
|------|--------------|
| **Send to Discord (ComfyPeeper)** (`ComfyPeeper` category) | Output node — wire your images into it and every run posts them to the webhook, with the workflow embedded in the PNG. Optional `message` and `filename_prefix`. Previews what it sent. |
## Routes
| method · path | purpose |
|---------------|---------|
| `GET /comfypeeper/info` | `{ name, version, caps }` — `caps` includes `"send"` only when a webhook is set. |
| `POST /comfypeeper/load` | `{ workflow }` → pushed to open tabs; the frontend loads it. |
| `POST /comfypeeper/send` | `{ filename, subfolder, type }` → uploads that output image to the webhook. |
## Notes
- **Send to ComfyUI** needs a ComfyUI **tab open** to receive the workflow, and the editor
(`workflow`) graph — which ComfyPeeper has for most posts.
- The webhook URL stays **only** in this `config.json` on your ComfyUI host — it's never sent
to or stored by the Discord plugin. (`config.json` is git-ignored.)
- The routes are unauthenticated, same trust model as the rest of the ComfyUI server — run the
companion only on instances you control / trust.
## License
[GPL-3.0-or-later](LICENSE) — same as ComfyPeeper. Not affiliated with Discord, Vencord, or ComfyUI.
__init__.py
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"""
ComfyPeeper Companion — bridges ComfyUI with the ComfyPeeper Discord plugin.
Drop this folder into ComfyUI/custom_nodes/ (as `comfypeeper`) and restart ComfyUI.
It adds three routes on the ComfyUI server:
GET /comfypeeper/info advertise a friendly name + capabilities (so the plugin can
label this server and light up companion features)
POST /comfypeeper/load { workflow } -> push the workflow to open editor tabs, which
the bundled frontend extension loads via app.loadGraphData()
POST /comfypeeper/send { filename, subfolder, type } -> upload that output image to
the configured Discord webhook (the image carries its workflow
in PNG metadata, so ComfyPeeper detects it on the Discord side)
Configure by copying config.example.json -> config.json and setting `name` (and
`discord_webhook` if you want "Send to Discord").
"""
import asyncio
import io
import json
import os
import aiohttp
from aiohttp import web
import folder_paths
from server import PromptServer
VERSION = "1.0.0"
_DIR = os.path.dirname(os.path.realpath(__file__))
_CONFIG_PATH = os.path.join(_DIR, "config.json")
def _config():
try:
with open(_CONFIG_PATH, "r", encoding="utf-8") as f:
cfg = json.load(f)
except Exception:
cfg = {}
return {
"name": (cfg.get("name") or "ComfyUI").strip(),
"discord_webhook": (cfg.get("discord_webhook") or "").strip(),
}
def _resolve_image_path(filename, subfolder, type_):
"""Resolve a /view-style image ref to a file path, clamped inside the type's base dir."""
if not filename:
return None
base = folder_paths.get_directory_by_type(type_ or "output")
if not base:
return None
base = os.path.abspath(base)
target = os.path.abspath(os.path.join(base, subfolder or "", filename))
# block path traversal outside the base directory
if os.path.commonpath([base, target]) != base:
return None
return target if os.path.isfile(target) else None
async def _upload_to_webhook(webhook, filename, data, content=""):
"""POST image bytes to a Discord webhook as multipart/form-data. Returns (ok, status, body)."""
form = aiohttp.FormData()
form.add_field("payload_json", json.dumps({"content": content}))
form.add_field("files[0]", data, filename=filename, content_type="application/octet-stream")
async with aiohttp.ClientSession() as session:
async with session.post(webhook, data=form) as resp:
return resp.status in (200, 204), resp.status, (await resp.text())[:300]
routes = PromptServer.instance.routes
@routes.get("/comfypeeper/info")
async def comfypeeper_info(_request):
cfg = _config()
caps = ["load"]
if cfg["discord_webhook"]:
caps.append("send")
return web.json_response({"app": "ComfyPeeper", "name": cfg["name"], "version": VERSION, "caps": caps})
@routes.post("/comfypeeper/load")
async def comfypeeper_load(request):
try:
data = await request.json()
except Exception:
return web.json_response({"ok": False, "error": "invalid json"}, status=400)
workflow = data.get("workflow")
if workflow is None:
return web.json_response({"ok": False, "error": "no workflow"}, status=400)
# broadcast to every connected tab; the frontend extension calls app.loadGraphData()
PromptServer.instance.send_sync("comfypeeper.load", {"workflow": workflow})
return web.json_response({"ok": True})
@routes.post("/comfypeeper/send")
async def comfypeeper_send(request):
webhook = _config()["discord_webhook"]
if not webhook:
return web.json_response({"ok": False, "error": "no webhook configured"}, status=400)
try:
data = await request.json()
except Exception:
return web.json_response({"ok": False, "error": "invalid json"}, status=400)
path = _resolve_image_path(data.get("filename"), data.get("subfolder", ""), data.get("type", "output"))
if not path:
return web.json_response({"ok": False, "error": "image not found"}, status=404)
try:
with open(path, "rb") as f:
file_bytes = f.read()
except Exception as e:
return web.json_response({"ok": False, "error": str(e)}, status=500)
try:
ok, status, body = await _upload_to_webhook(webhook, os.path.basename(path), file_bytes, (data.get("content") or "").strip())
return web.json_response({"ok": ok, "status": status, "data": body})
except Exception as e:
return web.json_response({"ok": False, "error": str(e)}, status=500)
class SendToDiscord:
"""Output node: send each incoming image (with workflow metadata) to the Discord webhook."""
@classmethod
def INPUT_TYPES(cls):
return {
"required": {"images": ("IMAGE",)},
"optional": {
"message": ("STRING", {"default": "", "multiline": True}),
"filename_prefix": ("STRING", {"default": "ComfyPeeper"}),
},
"hidden": {"prompt": "PROMPT", "extra_pnginfo": "EXTRA_PNGINFO"},
}
RETURN_TYPES = ()
FUNCTION = "send"
OUTPUT_NODE = True
CATEGORY = "ComfyPeeper"
def send(self, images, message="", filename_prefix="ComfyPeeper", prompt=None, extra_pnginfo=None):
webhook = _config()["discord_webhook"]
if not webhook:
print("[ComfyPeeper] SendToDiscord: no discord_webhook in config.json — skipping")
return {"ui": {"images": []}}
import numpy as np # lazy: keep the routes working even if image libs are unusual
from PIL import Image
from PIL.PngImagePlugin import PngInfo
temp_dir = folder_paths.get_temp_directory()
os.makedirs(temp_dir, exist_ok=True)
ui_images = []
for i, image in enumerate(images):
arr = np.clip(255.0 * image.cpu().numpy(), 0, 255).astype(np.uint8)
img = Image.fromarray(arr)
# embed workflow + prompt into the PNG, same as ComfyUI's SaveImage, so ComfyPeeper detects it
meta = PngInfo()
try:
if prompt is not None:
meta.add_text("prompt", json.dumps(prompt))
for k, v in (extra_pnginfo or {}).items():
meta.add_text(k, json.dumps(v))
except Exception as e:
print(f"[ComfyPeeper] SendToDiscord: metadata embed failed: {e}")
buf = io.BytesIO()
img.save(buf, format="PNG", pnginfo=meta, compress_level=4)
data = buf.getvalue()
# run the upload on the server's event loop (this node runs in a worker thread)
try:
fut = asyncio.run_coroutine_threadsafe(
_upload_to_webhook(webhook, f"{filename_prefix}_{i:03d}.png", data, (message or "").strip()),
PromptServer.instance.loop,
)
ok, status, _ = fut.result(timeout=60)
if not ok:
print(f"[ComfyPeeper] SendToDiscord: webhook returned {status}")
except Exception as e:
print(f"[ComfyPeeper] SendToDiscord: send failed: {e}")
# drop a temp copy so the node previews what it sent
try:
tmp_name = f"comfypeeper_{i:03d}.png"
with open(os.path.join(temp_dir, tmp_name), "wb") as f:
f.write(data)
ui_images.append({"filename": tmp_name, "subfolder": "", "type": "temp"})
except Exception:
pass
return {"ui": {"images": ui_images}}
WEB_DIRECTORY = "./web"
NODE_CLASS_MAPPINGS = {"ComfyPeeperSendToDiscord": SendToDiscord}
NODE_DISPLAY_NAME_MAPPINGS = {"ComfyPeeperSendToDiscord": "Send to Discord (ComfyPeeper)"}
__all__ = ["NODE_CLASS_MAPPINGS", "NODE_DISPLAY_NAME_MAPPINGS", "WEB_DIRECTORY"]
print(f"[ComfyPeeper] companion loaded (v{VERSION}) — name: {_config()['name']!r}")
config.example.json
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{
"name": "My GPU rig",
"discord_webhook": ""
}
pyproject.toml
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[project]
name = "comfyui-comfypeeper-companion"
description = "Bridge ComfyUI with the ComfyPeeper Discord plugin: load workflows into the open tab, and send output images (with embedded workflow) to a Discord webhook."
version = "1.0.0"
license = { text = "GPL-3.0-or-later" }
dependencies = []
[project.urls]
Repository = "https://github.com/Ethanfel/ComfyUI-ComfyPeeper-compagnon"
[tool.comfy]
PublisherId = "ethanfel"
DisplayName = "ComfyPeeper Companion"
Icon = ""
web/comfypeeper.js
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import { app } from "../../scripts/app.js";
/*
* ComfyPeeper companion — frontend extension.
* - listens for "comfypeeper.load" (pushed by POST /comfypeeper/load) and loads the
* workflow into this open tab via app.loadGraphData()
* - adds a "Send to Discord" right-click item to image-output nodes, which POSTs the
* image ref to /comfypeeper/send (the server uploads it to the configured webhook)
*/
function toast(severity, detail) {
try { app.extensionManager?.toast?.add?.({ severity, summary: "ComfyPeeper", detail, life: 4000 }); }
catch { /* older ComfyUI: no toast API */ }
if (severity === "error") console.error("[ComfyPeeper]", detail);
}
/** Parse a ComfyUI image element src (/view?filename=..&subfolder=..&type=..) into a ref. */
function imgRef(src) {
try {
const u = new URL(src, window.location.origin);
const filename = u.searchParams.get("filename");
if (!filename) return null;
return { filename, subfolder: u.searchParams.get("subfolder") || "", type: u.searchParams.get("type") || "output" };
} catch { return null; }
}
async function sendToDiscord(node) {
const imgs = node?.imgs || [];
const src = imgs[node.imageIndex ?? 0]?.src || imgs[0]?.src;
const ref = src && imgRef(src);
if (!ref) { toast("error", "No image on this node to send"); return; }
try {
const r = await app.api.fetchApi("/comfypeeper/send", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify(ref)
});
const j = await r.json().catch(() => ({}));
if (j?.ok) toast("success", "Sent to Discord");
else toast("error", "Send failed: " + (j?.error || ("HTTP " + r.status)));
} catch (err) {
toast("error", "Send failed: " + err);
}
}
app.registerExtension({
name: "comfypeeper.companion",
async setup() {
app.api.addEventListener("comfypeeper.load", async e => {
const wf = e?.detail?.workflow;
if (!wf) return;
try {
await app.loadGraphData(typeof wf === "string" ? JSON.parse(wf) : wf);
toast("success", "Workflow loaded from Discord");
} catch (err) {
toast("error", "Couldn't load that workflow");
}
});
},
// add "Send to Discord" to image-bearing nodes. getExtraMenuOptions is the most broadly
// compatible hook today (newer ComfyUI shows a deprecation notice but still honours it).
async beforeRegisterNodeDef(nodeType, nodeData) {
if (!["SaveImage", "PreviewImage"].includes(nodeData?.name)) return;
const orig = nodeType.prototype.getExtraMenuOptions;
nodeType.prototype.getExtraMenuOptions = function (canvas, options) {
orig?.apply(this, arguments);
if ((this.imgs || []).length) options.push({ content: "📤 Send to Discord", callback: () => sendToDiscord(this) });
};
}
});