65 lines
1.9 KiB
Python
65 lines
1.9 KiB
Python
|
"""Minimal, independent OpenRouter chat-completions client.
|
||
|
|
|
||
|
|
Deliberately does not depend on llm-connect's `OpenRouterAdapter`: its
|
||
|
|
`execute_prompt(prompt: str, config)` takes a single prompt string,
|
||
|
|
builds a fixed [system, user] message pair itself, and never surfaces
|
||
|
|
`message.tool_calls` in its response — it cannot drive a multi-turn
|
||
|
|
tool-calling loop without a breaking change to llm-connect's frozen
|
||
|
|
Core `LLMAdapter` ABC (`execute_prompt` signature). Rather than force
|
||
|
|
that change onto every llm-connect consumer, rein-openweights owns this
|
||
|
|
thin transport directly. See glas-harness ADR-002.
|
||
|
|
"""
|
||
|
|
|
||
|
|
from __future__ import annotations
|
||
|
|
|
||
|
|
from typing import Any
|
||
|
|
|
||
|
|
import httpx
|
||
|
|
|
||
|
|
_DEFAULT_API_BASE = "https://openrouter.ai/api/v1"
|
||
|
|
|
||
|
|
|
||
|
|
class OpenRouterError(RuntimeError):
|
||
|
|
pass
|
||
|
|
|
||
|
|
|
||
|
|
class OpenRouterClient:
|
||
|
|
def __init__(
|
||
|
|
self,
|
||
|
|
api_key: str,
|
||
|
|
model: str,
|
||
|
|
api_base: str = _DEFAULT_API_BASE,
|
||
|
|
timeout: float = 120.0,
|
||
|
|
) -> None:
|
||
|
|
self.api_key = api_key
|
||
|
|
self.model = model
|
||
|
|
self.api_base = api_base.rstrip("/")
|
||
|
|
self.timeout = timeout
|
||
|
|
|
||
|
|
def chat(
|
||
|
|
self,
|
||
|
|
messages: list[dict[str, Any]],
|
||
|
|
tools: list[dict[str, Any]] | None = None,
|
||
|
|
temperature: float = 0.2,
|
||
|
|
max_tokens: int = 4096,
|
||
|
|
) -> dict[str, Any]:
|
||
|
|
payload: dict[str, Any] = {
|
||
|
|
"model": self.model,
|
||
|
|
"messages": messages,
|
||
|
|
"temperature": temperature,
|
||
|
|
"max_tokens": max_tokens,
|
||
|
|
}
|
||
|
|
if tools:
|
||
|
|
payload["tools"] = tools
|
||
|
|
payload["tool_choice"] = "auto"
|
||
|
|
|
||
|
|
response = httpx.post(
|
||
|
|
f"{self.api_base}/chat/completions",
|
||
|
|
json=payload,
|
||
|
|
headers={"Authorization": f"Bearer {self.api_key}"},
|
||
|
|
timeout=self.timeout,
|
||
|
|
)
|
||
|
|
if response.status_code >= 400:
|
||
|
|
raise OpenRouterError(f"OpenRouter {response.status_code}: {response.text[:300]}")
|
||
|
|
return response.json()
|