Hitonabi
bb922b2a21
Der :9001/v1-Gateway bietet zwei virtuelle Modelle an, die der Router auf echte Modelle abbildet: - coding → coder (Standard) · heavy (riesiger/architektonischer Kontext) · fast (triviale Nicht-Code-Kurzfrage) - chat → fast/heavy (= bisheriges model:auto, weiter als Alias unterstützt) router_logic.choose_for_lane() kapselt die Lane-Logik (Code-Indikatoren DE+EN, damit echte Coding-Anfragen nie auf fast abrutschen). gateway_proxy routet die Lane-Namen und listet sie in /v1/models, sodass IDEs einfach "coding" wählen. Lucy/Hermes (:8642) bleibt unberührt — andere Ebene. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
68 lines
2.8 KiB
Python
68 lines
2.8 KiB
Python
import httpx
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from fastapi import APIRouter, Request
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from fastapi.responses import JSONResponse, StreamingResponse
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from config import LLAMA_SWAP_URL
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from services.gateway_stream import record_stream_chunk, record_usage
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from services.router_logic import FAST, FAST_NO_THINK, LANES, choose_for_lane
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router = APIRouter(prefix="/v1")
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# Virtuelle Lanes, die der Gateway zusätzlich zu den echten Modellen als „Modell" anbietet.
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_LANE_LABELS = {"coding": "Coding (Router → coder/heavy/fast)", "chat": "Chat (Router → fast/heavy)"}
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@router.get("/models")
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async def models():
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async with httpx.AsyncClient(timeout=10) as c:
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r = await c.get(f"{LLAMA_SWAP_URL}/v1/models")
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data = r.json()
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# Lanes ganz oben einblenden, damit IDEs einfach „coding"/„chat" wählen können.
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lanes = [{"id": lane, "object": "model", "owned_by": "mc2-router",
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"description": _LANE_LABELS.get(lane, lane)} for lane in LANES]
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if isinstance(data, dict) and isinstance(data.get("data"), list):
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data["data"] = lanes + data["data"]
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return JSONResponse(data, status_code=r.status_code)
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async def _proxy(path: str, request: Request):
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body = await request.json()
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requested = str(body.get("model") or "auto")
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if requested.lower() in ("auto", "chat", "coding"):
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lane = requested.lower()
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alias, reason = choose_for_lane(lane, body)
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body["model"] = alias
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routed = {"x-mc-routed-to": alias, "x-mc-route-reason": reason, "x-mc-lane": lane}
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else:
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alias = requested
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routed = {"x-mc-routed-to": requested}
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# fast-Spur: Thinking aus für flotte Antworten (sofern Client es nicht selbst setzt).
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if FAST_NO_THINK and alias == FAST and "chat_template_kwargs" not in body:
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body["chat_template_kwargs"] = {"enable_thinking": False}
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url = f"{LLAMA_SWAP_URL}{path}"
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if body.get("stream"):
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async def gen():
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async with httpx.AsyncClient(timeout=None) as c:
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async with c.stream("POST", url, json=body) as r:
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async for chunk in r.aiter_raw():
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record_stream_chunk(chunk, alias)
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yield chunk
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return StreamingResponse(gen(), media_type="text/event-stream", headers=routed)
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async with httpx.AsyncClient(timeout=600) as c:
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r = await c.post(url, json=body)
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resp_json = r.json()
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record_usage(resp_json.get("usage") if isinstance(resp_json, dict) else None, alias)
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return JSONResponse(resp_json, status_code=r.status_code, headers=routed)
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@router.post("/chat/completions")
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async def chat_completions(request: Request):
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return await _proxy("/v1/chat/completions", request)
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@router.post("/completions")
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async def completions(request: Request):
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return await _proxy("/v1/completions", request)
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