python es解决第一次链接激活问题

conifg
pip install fastapi elasticsearch[async]

code

from fastapi import FastAPI
from elasticsearch import Elasticsearch
from elasticsearch.helpers import async_client
 
app = FastAPI()
 
@app.on_event("startup")
async def startup_event():
    # 配置Elasticsearch连接
    es = Elasticsearch(
        hosts=[{"host": "localhost", "port": 9200}],
        # 使用自带的AsyncElasticsearch客户端
        http_async_client=async_client,
        # 指定连接池配置
        connection_class=async_client.AiohttpConnection,
        # 其他配置...
    )
    # 将客户端实例设置为全局变量
    app.state.es_client = es
 
@app.get("/search")
async def search(query: str):
    es_client = app.state.es_client
    # 使用异步方法执行搜索
    response = await es_client.search(index="your_index", query={"match": {"field": query}})
    return response