c41c68dc08
- Create comfy-agent service with FastAPI + NATS integration - ComfyUI client with HTTP/WebSocket support - REST API: /generate/image, /generate/video, /status, /result - NATS subjects: agent.invoke.comfy, comfy.request.* - Async job queue with progress tracking - Docker compose configuration for NODE3 - Update PROJECT-MASTER-INDEX.md with NODE2/NODE3 docs Co-Authored-By: Warp <agent@warp.dev>
61 lines
2.5 KiB
Python
61 lines
2.5 KiB
Python
# services/comfy-agent/app/worker.py
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import asyncio
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import uuid
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import os
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import json
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from typing import Any, Dict, Optional, Tuple
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from .jobs import JOB_STORE
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from .storage import make_job_dir, public_url
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from .comfyui_client import ComfyUIClient
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from .config import settings
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_queue: "asyncio.Queue[Tuple[str, str, Dict[str, Any]]]" = asyncio.Queue()
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def enqueue(job_id: str, gen_type: str, prompt_graph: Dict[str, Any]) -> None:
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_queue.put_nowait((job_id, gen_type, prompt_graph))
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async def _extract_first_output(history: Dict[str, Any], job_dir: str) -> Optional[str]:
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# ComfyUI history structure can vary; implement a conservative extraction:
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# try to find any "images" or "gifs"/"videos" outputs and download via /view
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# For MVP: prefer /view?filename=...&type=output&subfolder=...
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# Here we return a "manifest.json" to unblock integration even if file fetching needs refinement.
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manifest_path = os.path.join(job_dir, "manifest.json")
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with open(manifest_path, "w", encoding="utf-8") as f:
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json.dump(history, f, ensure_ascii=False, indent=2)
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return "manifest.json"
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async def worker_loop() -> None:
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client = ComfyUIClient()
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sem = asyncio.Semaphore(settings.MAX_CONCURRENCY)
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async def run_one(job_id: str, gen_type: str, prompt_graph: Dict[str, Any]) -> None:
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async with sem:
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JOB_STORE.update(job_id, status="running", progress=0.01)
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client_id = f"comfy-agent-{uuid.uuid4().hex}"
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def on_p(p: float, msg: str) -> None:
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JOB_STORE.update(job_id, progress=float(p), message=msg)
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try:
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prompt_id = await client.queue_prompt(prompt_graph, client_id=client_id)
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JOB_STORE.update(job_id, comfy_prompt_id=prompt_id)
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await client.wait_progress(client_id=client_id, prompt_id=prompt_id, on_progress=on_p)
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hist = await client.get_history(prompt_id)
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job_dir = make_job_dir(job_id)
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fname = await _extract_first_output(hist, job_dir)
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if not fname:
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JOB_STORE.update(job_id, status="failed", error="No outputs found in ComfyUI history")
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return
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url = public_url(job_id, fname)
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JOB_STORE.update(job_id, status="succeeded", progress=1.0, result_url=url)
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except Exception as e:
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JOB_STORE.update(job_id, status="failed", error=str(e))
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while True:
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job_id, gen_type, prompt_graph = await _queue.get()
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asyncio.create_task(run_one(job_id, gen_type, prompt_graph))
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