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import os, asyncio, httpx
from functools import lru_cache
_KEY = os.getenv("NCBI_EUTILS_KEY")
_BASE = "https://eutils.ncbi.nlm.nih.gov/entrez/eutils/"
async def _call(ep: str, params: dict, *, t=8):
if _KEY: params["api_key"] = _KEY
async with httpx.AsyncClient(timeout=t) as c:
r = await c.get(f"{_BASE}{ep}", params=params); r.raise_for_status()
return r.json() if r.headers["content-type"].startswith("application/json") else r.text
@lru_cache(maxsize=512)
async def pubmed_ids(term: str, n: int = 20):
data = await _call("esearch.fcgi", {"db":"pubmed","term":term,"retmode":"json","retmax":n})
return data["esearchresult"]["idlist"]
@lru_cache(maxsize=512)
async def gene_summary(gene_id: str):
data = await _call("esummary.fcgi", {"db":"gene","id":gene_id,"retmode":"json"})
return list(data["result"].values())[1]
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