{"id":205045,"date":"2025-05-29T12:52:18","date_gmt":"2025-05-29T04:52:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205045\/"},"modified":"2025-05-29T12:52:18","modified_gmt":"2025-05-29T04:52:18","slug":"fastapi%e4%b8%ad%e9%97%b4%e4%bb%b6%e5%a6%82%e4%bd%95%e5%90%8c%e6%ad%a5%e6%89%a7%e8%a1%8c%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205045\/","title":{"rendered":"FastAPI\u4e2d\u95f4\u4ef6\u5982\u4f55\u540c\u6b65\u6267\u884c\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

FastAPI\u4e2d\u95f4\u4ef6\u5982\u4f55\u540c\u6b65\u6267\u884c\uff1f<\/h1>\n

\u6587\u7ae0\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300aFastAPI\u4e2d\u95f4\u4ef6\u5982\u4f55\u540c\u6b65\u6267\u884c\uff1f\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n

<\/p>\n

<\/p>\n

\u5c06 fastapi \u4e2d\u95f4\u4ef6\u8f6c\u6362\u4e3a\u540c\u6b65\u6a21\u5f0f<\/strong><\/p>\n

\u5f53\u4f7f\u7528 fastapi \u65f6\uff0c\u4e2d\u95f4\u4ef6\u51fd\u6570\u901a\u5e38\u9700\u8981\u6807\u8bb0\u4e3a\u5f02\u6b65\uff08async\uff09\u3002\u7136\u800c\uff0c\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u5c06\u540c\u6b65\u4ee3\u7801\u96c6\u6210\u5230\u4e2d\u95f4\u4ef6\u4e2d\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u5982\u4f55\u5c06\u4e2d\u95f4\u4ef6\u8f6c\u6362\u4e3a\u540c\u6b65\u6a21\u5f0f\u3002<\/p>\n

\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u4e86\u89e3\u4e00\u4e0b\u4e2d\u95f4\u4ef6\u7684\u672c\u8d28\u3002\u4e2d\u95f4\u4ef6\u662f\u4e00\u79cd\u5141\u8bb8\u4f60\u5728\u8bf7\u6c42\u5904\u7406\u7684\u5404\u4e2a\u9636\u6bb5\uff08\u5982\u8bf7\u6c42\u4e4b\u524d\u6216\u54cd\u5e94\u4e4b\u540e\uff09\u63d2\u5165\u81ea\u5b9a\u4e49\u903b\u8f91\u7684\u673a\u5236\u3002\u5728 fastapi \u4e2d\uff0c\u4e2d\u95f4\u4ef6\u51fd\u6570\u88ab\u6807\u8bb0\u4e3a\u5f02\u6b65\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u53ef\u4ee5\u5728\u5904\u7406\u8bf7\u6c42\u65f6\u6302\u8d77\u3002<\/p>\n

\u7136\u800c\uff0c\u5bf9\u4e8e\u67d0\u4e9b\u540c\u6b65\u5e93\uff0c\u4f8b\u5982 peewee \u548c redis-py\uff0c\u4f7f\u7528\u5f02\u6b65\u662f\u4e0d\u53ef\u80fd\u7684\u3002\u56e0\u6b64\uff0c\u5982\u679c\u4f60\u9700\u8981\u5728\u4e2d\u95f4\u4ef6\u4e2d\u4f7f\u7528\u8fd9\u4e9b\u5e93\uff0c\u5c31\u9700\u8981\u5c06\u5176\u8f6c\u6362\u4e3a\u540c\u6b65\u6a21\u5f0f\u3002<\/p>\n

\u8981\u5c06\u4e2d\u95f4\u4ef6\u8f6c\u6362\u4e3a\u540c\u6b65\u6a21\u5f0f\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528 starlette.concurrency.run_in_threadpool() \u8f85\u52a9\u7a0b\u5e8f\u3002\u6b64\u8f85\u52a9\u7a0b\u5e8f\u5141\u8bb8\u4f60\u5c06\u5728\u72ec\u7acb\u7ebf\u7a0b\u4e2d\u8fd0\u884c\u7684\u540c\u6b65\u4ee3\u7801\u5305\u88c5\u5728\u534f\u7a0b\u4e2d\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u5982\u4f55\u5b9e\u73b0\u540c\u6b65\u4e2d\u95f4\u4ef6\uff1a<\/p>\n

from fastapi import FastAPI, Request, Response\nfrom starlette.concurrency import run_in_threadpool\n\napp = FastAPI()\n\ndef sync_middleware(request: Request, call_next):\n    # \u5728\u5355\u72ec\u7684\u7ebf\u7a0b\u4e2d\u8fd0\u884c\u540c\u6b65\u4ee3\u7801\n    run_in_threadpool(sync_code)\n\n    # \u7ee7\u7eed\u5904\u7406\u8bf7\u6c42\n    response = await call_next(request)\n\n    return response\n\n@app.middleware(\"http\")\nasync def my_middleware(request: Request, call_next):\n    return await sync_middleware(request, call_next)<\/pre>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0csync_middleware \u51fd\u6570\u5305\u542b\u9700\u8981\u4ee5\u540c\u6b65\u65b9\u5f0f\u6267\u884c\u7684\u4ee3\u7801\uff08sync_code\uff09\u3002run_in_threadpool() \u8f85\u52a9\u7a0b\u5e8f\u5c06\u5728\u72ec\u7acb\u7ebf\u7a0b\u4e2d\u8fd0\u884c\u6b64\u4ee3\u7801\uff0c\u800c\u4e2d\u95f4\u4ef6\u51fd\u6570\u672c\u8eab\u4ecd\u7136\u662f\u5f02\u6b65\u7684\u3002<\/p>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u5c06\u540c\u6b65\u4ee3\u7801\u96c6\u6210\u5230\u4f60\u7684\u4e2d\u95f4\u4ef6\u4e2d\uff0c\u540c\u65f6\u4ecd\u4fdd\u6301\u4e0e fastapi \u7684\u5f02\u6b65\u6027\u8d28\u517c\u5bb9\u3002<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300aFastAPI\u4e2d\u95f4\u4ef6\u5982\u4f55\u540c\u6b65\u6267\u884c\uff1f\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
FastAPI\u4e2d\u95f4\u4ef6\u5982\u4f55\u540c\u6b65\u6267\u884c...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-205045","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205045","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=205045"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205045\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205045"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205045"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}