93 lines
2.5 KiB
Python
93 lines
2.5 KiB
Python
"""
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Embeddings service client (Infinity/BGE).
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"""
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import logging
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from typing import Optional
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import httpx
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from handler_base.config import EmbeddingsSettings
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from handler_base.telemetry import create_span
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logger = logging.getLogger(__name__)
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class EmbeddingsClient:
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"""
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Client for the embeddings service (Infinity with BGE models).
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Usage:
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client = EmbeddingsClient()
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embeddings = await client.embed(["Hello world"])
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"""
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def __init__(self, settings: Optional[EmbeddingsSettings] = None):
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self.settings = settings or EmbeddingsSettings()
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self._client = httpx.AsyncClient(
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base_url=self.settings.embeddings_url,
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timeout=self.settings.http_timeout,
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)
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async def close(self) -> None:
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"""Close the HTTP client."""
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await self._client.aclose()
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async def embed(
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self,
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texts: list[str],
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model: Optional[str] = None,
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) -> list[list[float]]:
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"""
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Generate embeddings for a list of texts.
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Args:
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texts: List of texts to embed
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model: Model name (defaults to settings)
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Returns:
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List of embedding vectors
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"""
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model = model or self.settings.embeddings_model
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with create_span("embeddings.embed") as span:
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if span:
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span.set_attribute("embeddings.model", model)
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span.set_attribute("embeddings.batch_size", len(texts))
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response = await self._client.post(
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"/embeddings",
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json={"input": texts, "model": model},
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)
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response.raise_for_status()
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result = response.json()
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embeddings = [d["embedding"] for d in result.get("data", [])]
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if span:
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span.set_attribute("embeddings.dimensions", len(embeddings[0]) if embeddings else 0)
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return embeddings
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async def embed_single(self, text: str, model: Optional[str] = None) -> list[float]:
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"""
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Generate embedding for a single text.
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Args:
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text: Text to embed
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model: Model name (defaults to settings)
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Returns:
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Embedding vector
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"""
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embeddings = await self.embed([text], model)
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return embeddings[0] if embeddings else []
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async def health(self) -> bool:
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"""Check if the embeddings service is healthy."""
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try:
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response = await self._client.get("/health")
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return response.status_code == 200
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except Exception:
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return False
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