{"id":1246,"date":"2024-04-28T21:33:33","date_gmt":"2024-04-28T21:33:33","guid":{"rendered":"https:\/\/www.nicekj.com\/?p=1246"},"modified":"2024-04-28T21:33:38","modified_gmt":"2024-04-28T21:33:38","slug":"memfirejiaochengfastapimemfirecloudlangchainkaifachatgptyingyong","status":"publish","type":"post","link":"https:\/\/www.nicekj.com\/memfirejiaochengfastapimemfirecloudlangchainkaifachatgptyingyong.html","title":{"rendered":"MemFire\u6559\u7a0b | FastAPI + MemFire Cloud + LangChain\u5f00\u53d1ChatGPT\u5e94\u7528"},"content":{"rendered":"<h1 data-id=\"heading-0\">\u4e3a\u4ec0\u4e48\u9009\u62e9\u8fd9\u4e09\u4e2a\u7ec4\u5408<\/h1>\n<ul>\n<li>OpenAI\u5b98\u65b9SDK\u662fPython\uff0c\u6b64\u5f00\u53d1\u8bed\u8a00\u9996\u9009Python<\/li>\n<li>FastAPI\u662fPython\u8bed\u8a00\u7f16\u5199\u7684\u9ad8\u6027\u80fd\u7684\u73b0\u4ee3\u5316Web\u6846\u67b6<\/li>\n<li>MemFire Cloud\u63d0\u4f9b\u5411\u91cf\u6570\u636e\u5e93\u652f\u6301\uff0c\u5411\u91cf\u6570\u636e\u5e93\u662f\u5f00\u53d1\u77e5\u8bc6\u5e93\u5e94\u7528\u7684\u5fc5\u9009\u9879<\/li>\n<li>MemFire Cloud\u63d0\u4f9bSupabase\u6258\u7ba1\uff0cLangChain\u539f\u751f\u652f\u6301Supabase API<\/li>\n<li>LangChain\u662fAI\u5e94\u7528\u5f00\u53d1\u7684\u4e3b\u6d41\u6846\u67b6\uff0c\u80fd\u65b9\u4fbf\u7684\u7ec4\u5408\u5404\u79cdAI\u6280\u672f\u8fdb\u884c\u5e94\u7528\u5f00\u53d1<\/li>\n<\/ul>\n<h2 data-id=\"heading-1\">FastAPI\u4ecb\u7ecd<\/h2>\n<p>FastAPI \u662f\u4e00\u4e2a\u7528\u4e8e\u6784\u5efa API \u7684\u73b0\u4ee3\u3001\u5feb\u901f\uff08\u9ad8\u6027\u80fd\uff09\u7684 web \u6846\u67b6\uff0c\u4f7f\u7528 Python 3.6+ \u5f00\u53d1\u3002<\/p>\n<p>\u5173\u952e\u7279\u6027:<\/p>\n<ul>\n<li><strong>\u5feb\u901f<\/strong>\uff1a\u53ef\u4e0e <strong>NodeJS<\/strong> \u548c <strong>Go<\/strong> \u5e76\u80a9\u7684\u6781\u9ad8\u6027\u80fd\uff08\u5f52\u529f\u4e8e Starlette \u548c Pydantic\uff09\u3002<a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Ffastapi.tiangolo.com%2Fzh%2F%23_11\" target=\"_blank\" title=\"https:\/\/fastapi.tiangolo.com\/zh\/#_11\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">\u6700\u5feb\u7684 Python web \u6846\u67b6\u4e4b\u4e00<\/a>\u3002<\/li>\n<li><strong>\u9ad8\u6548\u7f16\u7801<\/strong>\uff1a\u63d0\u9ad8\u529f\u80fd\u5f00\u53d1\u901f\u5ea6\u7ea6 200\uff05 \u81f3 300\uff05\u3002*<\/li>\n<li><strong>\u66f4\u5c11 bug<\/strong>\uff1a\u51cf\u5c11\u7ea6 40\uff05 \u7684\u4eba\u4e3a\uff08\u5f00\u53d1\u8005\uff09\u5bfc\u81f4\u9519\u8bef\u3002*<\/li>\n<li><strong>\u667a\u80fd<\/strong>\uff1a\u6781\u4f73\u7684\u7f16\u8f91\u5668\u652f\u6301\u3002\u5904\u5904\u7686\u53ef\u81ea\u52a8\u8865\u5168\uff0c\u51cf\u5c11\u8c03\u8bd5\u65f6\u95f4\u3002<\/li>\n<li><strong>\u7b80\u5355<\/strong>\uff1a\u8bbe\u8ba1\u7684\u6613\u4e8e\u4f7f\u7528\u548c\u5b66\u4e60\uff0c\u9605\u8bfb\u6587\u6863\u7684\u65f6\u95f4\u66f4\u77ed\u3002<\/li>\n<li><strong>\u7b80\u77ed<\/strong>\uff1a\u4f7f\u4ee3\u7801\u91cd\u590d\u6700\u5c0f\u5316\u3002\u901a\u8fc7\u4e0d\u540c\u7684\u53c2\u6570\u58f0\u660e\u5b9e\u73b0\u4e30\u5bcc\u529f\u80fd\u3002bug \u66f4\u5c11\u3002<\/li>\n<li><strong>\u5065\u58ee<\/strong>\uff1a\u751f\u4ea7\u53ef\u7528\u7ea7\u522b\u7684\u4ee3\u7801\u3002\u8fd8\u6709\u81ea\u52a8\u751f\u6210\u7684\u4ea4\u4e92\u5f0f\u6587\u6863\u3002<\/li>\n<li><strong>\u6807\u51c6\u5316<\/strong>\uff1a\u57fa\u4e8e\uff08\u5e76\u5b8c\u5168\u517c\u5bb9\uff09API \u7684\u76f8\u5173\u5f00\u653e\u6807\u51c6\uff1a<a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fgithub.com%2FOAI%2FOpenAPI-Specification\" target=\"_blank\" title=\"https:\/\/github.com\/OAI\/OpenAPI-Specification\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">OpenAPI<\/a> (\u4ee5\u524d\u88ab\u79f0\u4e3a Swagger) \u548c <a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fjson-schema.org%2F\" target=\"_blank\" title=\"https:\/\/json-schema.org\/\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">JSON Schema<\/a>\u3002<\/li>\n<\/ul>\n<p>\u5b98\u65b9\u6587\u6863\uff1a<a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Ffastapi.tiangolo.com%2Fzh%2F\" target=\"_blank\" title=\"https:\/\/fastapi.tiangolo.com\/zh\/\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">fastapi.tiangolo.com\/zh\/<\/a><\/p>\n<h2 data-id=\"heading-2\">ChatGPT\u4ecb\u7ecd<\/h2>\n<p>\u51c6\u786e\u6765\u8bf4ChatGPT\u53ea\u662fopenai\u57fa\u4e8eGPT\u6a21\u578b\u5f00\u53d1\u7684\u4e00\u4e2a\u5e94\u7528\uff0c\u53ea\u4e0d\u8fc7\u8fd9\u4e2a\u8bcd\u66f4\u6d41\u884c\uff0c\u66f4\u5e7f\u4e3a\u4eba\u77e5\u3002\u5bf9\u4e8e\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u66f4\u51c6\u786e\u7684\u8bf4\u6cd5\u662fGPT\u6a21\u578b\u3002\u76ee\u524dopenai\u63d0\u4f9b\u7684\u6a21\u578b\u5305\u62ec\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n<table><thead><tr><th>\u6a21\u578b<\/th><th>\u63cf\u8ff0<\/th><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fplatform.openai.com%2Fdocs%2Fmodels%2Fgpt-4\" target=\"_blank\" title=\"https:\/\/platform.openai.com\/docs\/models\/gpt-4\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">GPT-4<\/a><\/td><td>GPT-3.5\u7684\u4f18\u5316\u7248\u672c\uff0c\u7406\u89e3\u80fd\u529b\u548c\u751f\u6210\u81ea\u7136\u8bed\u8a00\u548c\u4ee3\u7801\u7684\u80fd\u529b\u66f4\u597d\u3002<\/td><\/tr><tr><td><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fplatform.openai.com%2Fdocs%2Fmodels%2Fgpt-3-5\" target=\"_blank\" title=\"https:\/\/platform.openai.com\/docs\/models\/gpt-3-5\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">GPT-3.5<\/a><\/td><td>GPT-3\u7684\u4f18\u5316\u7248\u672c\u3002<\/td><\/tr><tr><td><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fplatform.openai.com%2Fdocs%2Fmodels%2Fdall-e\" target=\"_blank\" title=\"https:\/\/platform.openai.com\/docs\/models\/dall-e\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">DALL\u00b7E<\/a><\/td><td>\u6587\u751f\u56feAI\u6a21\u578b<\/td><\/tr><tr><td><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fplatform.openai.com%2Fdocs%2Fmodels%2Fwhisper\" target=\"_blank\" title=\"https:\/\/platform.openai.com\/docs\/models\/whisper\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">Whisper<\/a><\/td><td>\u97f3\u9891\u8f6c\u6587\u672cAI\u6a21\u578b<\/td><\/tr><tr><td><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fplatform.openai.com%2Fdocs%2Fmodels%2Fembeddings\" target=\"_blank\" title=\"https:\/\/platform.openai.com\/docs\/models\/embeddings\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">Embeddings<\/a><\/td><td>\u6587\u672c\u8f6c\u5411\u91cf\u6a21\u578b<\/td><\/tr><tr><td><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fplatform.openai.com%2Fdocs%2Fmodels%2Fmoderation\" target=\"_blank\" title=\"https:\/\/platform.openai.com\/docs\/models\/moderation\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">Moderation<\/a><\/td><td>\u654f\u611f\u8bcd\u68c0\u6d4b\u6a21\u578b\uff0c\u7528\u4ee5\u68c0\u67e5\u7528\u6237\u7684\u8f93\u5165\u662f\u5426\u5408\u89c4<\/td><\/tr><\/tbody><\/table>\n<p>\u6bcf\u4e2a\u6a21\u578b\u4e0b\u9762\u53c8\u5206\u522b\u6709\u5f88\u591a\u7ec6\u5206\u7684\u6a21\u578b\uff0c\u5728\u6587\u672c\u548c\u4ee3\u7801\u751f\u6210\u573a\u666f\uff0c\u5b98\u65b9\u63a8\u8350\u4f7f\u7528\u4e24\u4e2a\u6a21\u578b\uff1a<code>gpt-3.5-turbo<\/code> or <code>gpt-4<\/code>\uff0c\u672c\u6587\u4f7f\u7528\u76ee\u524d\u6210\u672c\u66f4\u4f18\u7684<code>gpt-3.5-turbo<\/code> \u3002\u76f8\u5bf9\u5e94\u7684\uff0c <code>gpt-4<\/code> \u80fd\u7406\u89e3\u66f4\u590d\u6742\u7684\u6307\u4ee4\uff0c\u4e5f\u4f1a\u5c3d\u53ef\u80fd\u4e0d\u80e1\u8a00\u4e71\u8bed\uff0c\u4f46\u662f <code>gpt-4<\/code> \u6210\u672c\u8981\u9ad8\u4e00\u4e9b\uff0c\u63a8\u7406\u901f\u5ea6\u8981\u6162\u4e00\u4e9b\u3002<\/p>\n<p>GPT\u6a21\u578b\u7684\u5e94\u7528\u573a\u666f\uff1a<\/p>\n<ul>\n<li>\u7f16\u5199\u5404\u79cd\u7c7b\u578b\u7684\u6587\u6863\uff0c\u5305\u62ec\u5b66\u672f\u8bba\u6587<\/li>\n<li>\u751f\u6210\u4ee3\u7801<\/li>\n<li>\u57fa\u4e8e\u77e5\u8bc6\u5e93\u8fdb\u884c\u95ee\u9898\u56de\u7b54<\/li>\n<li>\u5206\u6790\u6587\u672c\uff0c\u5305\u62ec\u9605\u8bfb\u8bba\u6587\u3001\u89e3\u8bfb\u4ee3\u7801\u7b49\u90fd\u80fd\u80dc\u4efb<\/li>\n<li>\u5bf9\u8bdd\u5de5\u5177\uff0c\u6bd4\u5982\u5ba2\u670d<\/li>\n<li>\u4e3a\u8f6f\u4ef6\u63d0\u4f9b\u81ea\u7136\u8bed\u8a00\u63a5\u53e3<\/li>\n<li>\u6559\u5b66\u5bfc\u5e08<\/li>\n<li>\u7ffb\u8bd1<\/li>\n<li>\u6e38\u620f\u89d2\u8272AI<\/li>\n<\/ul>\n<p>openai\u7684\u66f4\u591a\u8d44\u6e90\u8bf7\u53c2\u8003\uff1a<\/p>\n<ul>\n<li><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fplatform.openai.com%2Fdocs%2Fintroduction\" target=\"_blank\" title=\"https:\/\/platform.openai.com\/docs\/introduction\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">platform.openai.com\/docs<\/a><\/li>\n<li><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fgithub.com%2Fopenai%2Fopenai-cookbook\" target=\"_blank\" title=\"https:\/\/github.com\/openai\/openai-cookbook\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">github.com\/openai\/open\u2026<\/a><\/li>\n<\/ul>\n<h2 data-id=\"heading-3\">MemFire Cloud\u4ecb\u7ecd<\/h2>\n<p>\u672c\u6587\u4e3b\u8981\u4f7f\u7528\u4e86MemFire Cloud\u7684BaaS\u670d\u52a1\u63d0\u4f9b\u7684\u6570\u636e\u5e93\u81ea\u52a8\u751f\u6210API\u4ee5\u53ca\u5411\u91cf\u6570\u636e\u5e93\u80fd\u529b\u3002MemFire Cloud\u7684BaaS\u670d\u52a1\u8fd8\u63d0\u4f9b\u4e86\u5176\u4ed6\u4e00\u4e9b\u65b9\u4fbf\u5f00\u53d1\u8005\u8fdb\u884c\u5e94\u7528\u5f00\u53d1\u7684\u529f\u80fd\uff1a<\/p>\n<ul>\n<li>\u5b8c\u6574\u7684\u7528\u6237\u6ce8\u518c\u3001\u767b\u5f55\u3001\u6743\u9650\u7ba1\u7406API\uff0cweb\u524d\u7aef\u548cApp\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\uff0c\u51e0\u884c\u4ee3\u7801\u5b8c\u6210\u7528\u6237\u6ce8\u518c\u767b\u5f55\u529f\u80fd\u3002<\/li>\n<li>\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u3001\u624b\u673a\u77ed\u4fe1\u9a8c\u8bc1\u7801\u3001github\u3001apple\u7b49\u7b2c\u4e09\u65b9\u7528\u6237\u63a5\u5165\u652f\u6301\u3002<\/li>\n<li>\u6700\u6d41\u884c\u7684postgres\u5173\u7cfb\u6570\u636e\u5e93\u652f\u6301\uff0c\u81ea\u52a8\u751f\u6210\u589e\u5220\u67e5\u6539API\u63a5\u53e3\uff0c\u652f\u6301\u5411\u91cf\u5316\u63d2\u4ef6pgvector\u3002<\/li>\n<li>\u63d0\u4f9b\u5bf9\u8c61\u5b58\u50a8\u63a5\u53e3\uff0c\u65b9\u4fbf\u5e94\u7528\u5f00\u53d1\u8005\u4e0a\u4f20\u4e0b\u8f7d\u56fe\u7247\u3001\u6587\u6863\u7b49\u3002<\/li>\n<li>\u9759\u6001\u6258\u7ba1\u548c\u81ea\u5b9a\u4e49\u57df\u540d\u670d\u52a1\uff0c\u53ef\u4ee5\u8ba9\u5f00\u53d1\u8005\u4e0d\u9700\u8981\u4e3a\u90e8\u7f72\u524d\u7aef\u4ee3\u7801\u4e13\u95e8\u8d2d\u4e70\u4e91\u670d\u52a1\u5668\u3002<\/li>\n<li>\u4e91\u51fd\u6570\u53ef\u4ee5\u65b9\u4fbf\u5904\u7406\u590d\u6742\u548c\u654f\u611f\u7684\u4e1a\u52a1\u903b\u8f91\uff0c\u4e5f\u53ef\u4ee5\u7528\u6765\u6258\u7ba1\u5b8c\u6574\u7684api\u670d\u52a1\u3002<\/li>\n<\/ul>\n<p>MemFire Cloud\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u8003\uff1a<a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fmemfiredb.com%2F\" target=\"_blank\" title=\"https:\/\/memfiredb.com\/\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">memfiredb.com\/<\/a><\/p>\n<h1 data-id=\"heading-4\">GPT\u521d\u4f53\u9a8c<\/h1>\n<p>\u4e0b\u9762\u662fopenai\u5b98\u65b9\u7684\u4e00\u4e2a\u4f8b\u5b50\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">import os<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">import openai<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><span class=\"hljs-attr\">openai.organization<\/span> = <span class=\"hljs-string\">\"org-kjUiGhsu6S3CI2MUch25dMOF\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><span class=\"hljs-attr\">openai.api_key<\/span> = os.getenv(<span class=\"hljs-string\">\"OPENAI_API_KEY\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">openai.ChatCompletion.create(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"> &nbsp;<span class=\"hljs-attr\">model<\/span>=<span class=\"hljs-string\">\"gpt-3.5-turbo\"<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\"> &nbsp;<span class=\"hljs-attr\">messages<\/span>=[<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\"> &nbsp; &nbsp; &nbsp;  {<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"system\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: <span class=\"hljs-string\">\"You are a helpful assistant.\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\"> &nbsp; &nbsp; &nbsp;  {<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"user\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: <span class=\"hljs-string\">\"Who won the world series in 2020?\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\"> &nbsp; &nbsp; &nbsp;  {<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"assistant\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: <span class=\"hljs-string\">\"The Los Angeles Dodgers won the World Series in 2020.\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\"> &nbsp; &nbsp; &nbsp;  {<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"user\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: <span class=\"hljs-string\">\"Where was it played?\"<\/span>}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\"> &nbsp;  ]<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\">)<\/span>\n<\/code><\/pre>\n<p>\u53c2\u6570\u5fc5\u586b\u9879\uff1a<\/p>\n<ul>\n<li>model\uff1a\u6a21\u578b\u9009\u62e9\uff0c\u8fd9\u91cc\u7528\u7684\u662f<code>gpt-3.5-turbo<\/code><\/li>\n<li>messages\uff1a\u4fe1\u606f\uff0c\u53ef\u4ee5\u53ea\u5305\u542b\u4e00\u4e2a\u95ee\u9898\uff0c\u4e5f\u53ef\u4ee5\u5305\u542b\u66f4\u591a\u4e0a\u4e0b\u6587\uff0c\u4ee5\u5e2e\u52a9AI\u66f4\u51c6\u786e\u7684\u56de\u7b54\u95ee\u9898\u3002<\/li>\n<\/ul>\n<p>AI\u5f00\u53d1\u7684\u6700\u4e3b\u8981\u7684\u5de5\u4f5c\u5c31\u662f\u7ec4\u88c5\u5408\u9002\u7684messages\uff0c\u4ee5\u8fbe\u5230\u66f4\u7cbe\u786e\u7684\u56de\u7b54\u7528\u6237\u95ee\u9898\u7684\u76ee\u7684\u3002\u4e00\u6761message\u5305\u542brole\u548ccontent\u4e24\u4e2a\u5143\u7d20\u3002\u5176\u4e2drole\u5305\u542b\uff1a<\/p>\n<ul>\n<li>system\uff1a\u76f8\u5f53\u4e8e\u7cfb\u7edf\u8bbe\u5b9a\uff0c\u4e00\u822c\u7528\u6765\u544a\u8bc9ai\u4ed6\u8981\u626e\u6f14\u4ec0\u4e48\u89d2\u8272\uff0c\u5982\u4f55\u56de\u7b54\u95ee\u9898\u7b49\u3002<\/li>\n<li>assistant\uff1a\u8f85\u52a9\u4fe1\u606f\uff0c\u5e2e\u52a9AI\u66f4\u597d\u7684\u7406\u89e3\u7528\u6237\u7684\u5f53\u524d\u95ee\u9898\u3002\u901a\u5e38\u7528\u4e8e\u5305\u542b\u591a\u8f6e\u5bf9\u8bdd\u7684\u4e0a\u4e0b\u6587\u4fe1\u606f\uff0c\u4e5f\u53ef\u4ee5\u7528\u6765\u7ed9\u51fa\u4e00\u4e9b\u95ee\u7b54\u6837\u4f8b\u3002<\/li>\n<li>user\uff1a\u7528\u6237\u7684\u63d0\u95ee\u5185\u5bb9\u3002<\/li>\n<\/ul>\n<h1 data-id=\"heading-5\">FastAPI\u7f16\u5199\u540e\u7aef\u670d\u52a1<\/h1>\n<blockquote>\n<p>\u5982\u679c\u4f60\u4f7f\u7528\u8fc7FastAPI\uff0c\u53ef\u4ee5\u8df3\u8fc7\u672c\u8282\u5185\u5bb9\u3002<\/p>\n<\/blockquote>\n<p>\u5982\u679c\u4f60\u6709flask\u6216django\u7684\u57fa\u7840\uff0c\u5f3a\u70c8\u5efa\u8bae\u9605\u8bfb\u5b98\u65b9\u7684\u8fd9\u4e24\u4e2a\u6559\u7a0b\uff0c\u53ef\u4ee5\u5e2e\u52a9\u4f60\u5feb\u901f\u4e86\u89e3fastapi\u7684\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Ffastapi.tiangolo.com%2Fzh%2Ftutorial%2Fsql-databases%2F\" target=\"_blank\" title=\"https:\/\/fastapi.tiangolo.com\/zh\/tutorial\/sql-databases\/\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">fastapi.tiangolo.com\/zh\/tutorial\u2026<\/a><\/li>\n<li><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Ffastapi.tiangolo.com%2Fzh%2Ftutorial%2Fbigger-applications%2F\" target=\"_blank\" title=\"https:\/\/fastapi.tiangolo.com\/zh\/tutorial\/bigger-applications\/\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">fastapi.tiangolo.com\/zh\/tutorial\u2026<\/a><\/li>\n<\/ul>\n<p>\u5982\u679c\u4f60\u662fweb\u670d\u52a1\u7684\u65b0\u624b\uff0c\u5efa\u8bae\u4ece\u5934\u9605\u8bfbfastapi\u7684\u6559\u7a0b\u6587\u6863\uff0c\u5199\u7684\u975e\u5e38\u597d\u3002<\/p>\n<p><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Ffastapi.tiangolo.com%2Fzh%2Ftutorial%2Ffirst-steps%2F\" target=\"_blank\" title=\"https:\/\/fastapi.tiangolo.com\/zh\/tutorial\/first-steps\/\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">fastapi.tiangolo.com\/zh\/tutorial\u2026<\/a><\/p>\n<p>\u6211\u4eec\u5148\u4ee5\u4e0a\u9762openai\u7684\u5b98\u65b9\u793a\u4f8b\uff0c\u6765\u770b\u4e00\u4e0b\u5982\u4f55\u4f7f\u7528fastapi\u6765\u7f16\u5199\u670d\u52a1\u7aef\u4ee3\u7801\uff0c\u5b8c\u6210\u4e0eopenai\u7684\u4ea4\u4e92\uff0c\u5e76\u66b4\u9732\u63a5\u53e3\u7ed9\u4f60\u7684web\u6216app\u5ba2\u6237\u7aef\u4f7f\u7528\u3002\u4e3a\u4e86\u65b9\u4fbf\uff0c\u6211\u4eec\u5c06\u6240\u6709\u4ee3\u7801\u653e\u5728\u4e00\u4e2amain.py\u4e2d\u6f14\u793a\uff0c\u5982\u679c\u4f60\u8981\u5b9e\u73b0\u4e00\u4e2a\u5b8c\u6574\u7684\u5e94\u7528\uff0c\u5efa\u8bae\u53c2\u8003\u5927\u578b\u5e94\u7528\u5f00\u53d1\u8fd9\u7bc7\u6559\u7a0b\uff0c\u6a21\u5757\u5316\u7ec4\u7ec7\u4f60\u7684\u4ee3\u7801\u3002<\/p>\n<h2 data-id=\"heading-6\">\u63a5\u53e3\u5b9a\u4e49<\/h2>\n<p>\u4e00\u4e2a\u7b80\u5355\u7684\u53ef\u8fd0\u884c\u7684\u63a5\u53e3\u5b9a\u4e49:<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">from<\/span> fastapi <span class=\"hljs-keyword\">import<\/span> FastAPI<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">app = FastAPI()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><span class=\"hljs-meta\">@app.get(<span class=\"hljs-params\"><span class=\"hljs-string\">\"\/hello\"<\/span><\/span>)<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\"><span class=\"hljs-keyword\">async<\/span> <span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title function_\">hello<\/span>():<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"> &nbsp; &nbsp;<span class=\"hljs-keyword\">return<\/span> {<span class=\"hljs-string\">\"message\"<\/span>: <span class=\"hljs-string\">\"\u4f60\u597d\"<\/span>}<\/span>\n<\/code><\/pre>\n<p>\u5b89\u88c5\u4e0b\u5217\u4f9d\u8d56\u5c31\u53ef\u4ee5\u8fd0\u884c\u4e86\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">bash<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-bash code-block-extension-codeShowNum\" lang=\"bash\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-comment\"># \u5b89\u88c5\u4f9d\u8d56<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">pip install <span class=\"hljs-string\">\"uvicorn[standard]==0.23.1\"<\/span> <span class=\"hljs-string\">\"fastapi[all]==0.99.1\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><span class=\"hljs-comment\"># \u8fd0\u884c\u670d\u52a1<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">uvicorn main:app --reload<\/span>\n<\/code><\/pre>\n<p>\u8bbf\u95ee\u63a5\u53e3\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">arduino<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-arduino code-block-extension-codeShowNum\" lang=\"arduino\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">curl http:<span class=\"hljs-comment\">\/\/127.0.0.1:8000\/hello<\/span><\/span>\n<\/code><\/pre>\n<h2 data-id=\"heading-7\">\u5c01\u88c5openai\u8c03\u7528\u63a5\u53e3<\/h2>\n<p>\u4e86\u89e3\u4e86fastapi\u7684\u63a5\u53e3\u5b9a\u4e49\u65b9\u6cd5\uff0c\u6211\u4eec\u5c31\u80fd\u5f88\u5feb\u5c06openai\u7684\u5b98\u65b9\u793a\u4f8b\u5c01\u88c5\u6210\u63a5\u53e3\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">from fastapi import FastAPI<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">import openai<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><span class=\"hljs-attr\">app<\/span> = FastAPI()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"><span class=\"hljs-attr\">openai.organization<\/span> = <span class=\"hljs-string\">\"org-kjUiGhsu6S3CI2MUch25dMOF\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"><span class=\"hljs-attr\">openai.api_key<\/span> = os.getenv(<span class=\"hljs-string\">\"OPENAI_API_KEY\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">@app.get(\"\/openai\")<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">async def openai():<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\"> &nbsp; &nbsp;return openai.ChatCompletion.create(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\"> &nbsp; &nbsp; &nbsp;<span class=\"hljs-attr\">model<\/span>=<span class=\"hljs-string\">\"gpt-3.5-turbo\"<\/span>,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\"> &nbsp; &nbsp; &nbsp;<span class=\"hljs-attr\">messages<\/span>=[<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  {<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"system\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: <span class=\"hljs-string\">\"You are a helpful assistant.\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  {<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"user\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: <span class=\"hljs-string\">\"Who won the world series in 2020?\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  {<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"assistant\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: <span class=\"hljs-string\">\"The Los Angeles Dodgers won the World Series in 2020.\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\"> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  {<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"user\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: <span class=\"hljs-string\">\"Where was it played?\"<\/span>}<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"18\"> &nbsp; &nbsp; &nbsp;  ]<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"19\"> &nbsp;  )<\/span>\n<\/code><\/pre>\n<h2 data-id=\"heading-8\">\u9519\u8bef\u5904\u7406<\/h2>\n<p>\u5728\u8c03\u7528openai\u7684\u63a5\u53e3\u65f6\uff0c\u5982\u679c\u53d1\u751f\u9519\u8bef\uff0copenai\u4f1a\u629b\u51fa\u5f02\u5e38\u3002\u5728FastAPI\u7684\u670d\u52a1\u4ee3\u7801\u4e2d\uff0c\u5982\u679c\u6211\u4eec\u4e0d\u5904\u7406openai\u7684\u5f02\u5e38\uff0cFastAPI\u4f1a\u5c06\u5f02\u5e38\u629b\u51fa\uff0c\u5e76\u8fd4\u56de\u5ba2\u6237\u7aef500 Internal Server Error\u3002\u901a\u5e38\u6211\u4eec\u9700\u8981\u4ee5\u66f4\u7ed3\u6784\u5316\u7684\u65b9\u5f0f\u5c06\u5177\u4f53\u7684\u9519\u8bef\u4fe1\u606f\u8fd4\u56de\u7ed9\u63a5\u53e3\u8c03\u7528\u8005\u3002<\/p>\n<p>FastAPI\u63d0\u4f9b\u4e86\u5f02\u5e38\u5904\u7406\u7684\u56de\u8c03\u63a5\u53e3\uff0c\u4ee5openai\u7684\u5f02\u5e38\u4e3a\u4f8b\uff0c\u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u65b9\u5f0f\u6ce8\u518c\u5f02\u5e38\u5904\u7406\u51fd\u6570\uff0c\u4ee5\u66f4\u53cb\u597d\u3001\u7edf\u4e00\u7684\u7ed3\u6784\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">python<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-python code-block-extension-codeShowNum\" lang=\"python\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-keyword\">from<\/span> fastapi <span class=\"hljs-keyword\">import<\/span> FastAPI, Request<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-keyword\">from<\/span> fastapi.responses <span class=\"hljs-keyword\">import<\/span> JSONResponse<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><span class=\"hljs-keyword\">from<\/span> openai <span class=\"hljs-keyword\">import<\/span> OpenAIError<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">app = FastAPI()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"><span class=\"hljs-comment\"># \u6355\u83b7\u5f02\u5e38\uff0c\u5e76\u8fd4\u56deJSON\u683c\u5f0f\u7684\u9519\u8bef\u4fe1\u606f<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\"><span class=\"hljs-meta\">@app.exception_handler(<span class=\"hljs-params\">OpenAIError<\/span>)<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\"><span class=\"hljs-keyword\">async<\/span> <span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title function_\">openai_exception_handler<\/span>(<span class=\"hljs-params\">request: Request, exc: OpenAIError<\/span>):<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\"> &nbsp; &nbsp;<span class=\"hljs-keyword\">return<\/span> JSONResponse(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\"> &nbsp; &nbsp; &nbsp; &nbsp;status_code=exc.http_status,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\"> &nbsp; &nbsp; &nbsp; &nbsp;content={<span class=\"hljs-string\">'code'<\/span>: exc.code, <span class=\"hljs-string\">'message'<\/span>: exc.error},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\"> &nbsp;  )<\/span>\n<\/code><\/pre>\n<p>\u4e86\u89e3\u4e86FastAPI\u7684api\u5b9a\u4e49\u65b9\u6cd5\u548c\u9519\u8bef\u5904\u7406\u65b9\u6cd5\uff0c\u6211\u4eec\u57fa\u672c\u4e0a\u53ef\u4ee5\u5b8c\u6210\u4e00\u4e2a\u7b80\u5355\u7684web\u670d\u52a1\u7a0b\u5e8f\u4e86\u3002<\/p>\n<h1 data-id=\"heading-9\">\u57fa\u4e8eopenai\u5f00\u53d1\u77e5\u8bc6\u5e93\u5e94\u7528\u7684\u57fa\u672c\u539f\u7406<\/h1>\n<p>LangChain\u7684\u6587\u6863\u4e2d\u5bf9QA\u573a\u666f\u7684AI\u5e94\u7528\u5f00\u53d1\u6709\u6bd4\u8f83\u5177\u4f53\u7684\u8bb2\u89e3\uff0c\u611f\u5174\u8da3\u7684\u53ef\u4ee5\u6df1\u5165\u9605\u8bfb\uff1a<\/p>\n<p><a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fpython.langchain.com%2Fdocs%2Fuse_cases%2Fquestion_answering%2F\" target=\"_blank\" title=\"https:\/\/python.langchain.com\/docs\/use_cases\/question_answering\/\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">python.langchain.com\/docs\/use_ca\u2026<\/a><\/p>\n<p>\u4e0b\u56fe\u662f\u77e5\u8bc6\u5e93\u7c7bAI\u5e94\u7528\u7684\u57fa\u672c\u5f00\u53d1\u6d41\u7a0b\uff1a<\/p>\n<p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.nicekj.com\/wp-content\/uploads\/replace\/d385ca23a080ae86e08008e2a0a3071e.png\" alt=\"img\" \/><\/figure>\n<\/p>\n<p>\u4ece\u56fe\u4e2d\u53ef\u4ee5\u770b\u5230\uff0c\u5927\u81f4\u53ef\u4ee5\u5206\u4e3a\u5982\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<ol>\n<li>\u6587\u6863\u5904\u7406\uff1a\u5c06pdf\u3001docx\u3001\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u8f6c\u6362\u6210\u6587\u672c\u5185\u5bb9\u3002\u76ee\u524dopenai\u7684chat\u6a21\u578b\u63a5\u6536\u7684\u90fd\u662f\u6587\u672c\u6570\u636e\u3002<\/li>\n<li>\u6570\u636e\u5207\u5206\uff1a\u5c06\u5904\u7406\u8fc7\u540e\u7684\u6587\u672c\u5185\u5bb9\u8fdb\u884c\u5207\u5206\u3002\u5207\u5206\u7684\u76ee\u7684\u662f\u65b9\u4fbf\u8bed\u4e49\u5316\u68c0\u7d22\uff0c\u8ba9\u68c0\u7d22\u5185\u5bb9\u66f4\u7cbe\u786e\uff0c\u53e6\u5916\u4e5f\u662f\u4e3a\u4e86\u9002\u914dAI\u63a5\u53e3\u7684\u9650\u5236\u3002gpt-3.5-turbo\u7684\u6700\u5927tokens\u6570\u91cf\u662f4k\uff0cgpt-3.5-turbo-16k\u4e5f\u53ea\u670916k\uff0c\u56e0\u6b64\u6587\u6863\u5207\u5206\u662f\u5fc5\u9700\u7684\u6b65\u9aa4\u3002<\/li>\n<li>\u5411\u91cf\u5316\uff1aopenai\u63d0\u4f9b\u4e86embedding\u6a21\u578b\uff0c\u4e13\u95e8\u7528\u6765\u5c06\u6587\u672c\u8f6c\u6362\u6210\u5411\u91cf\u5316\u6570\u636e\uff0c\u5411\u91cf\u5316\u7684\u76ee\u7684\u662f\u65b9\u4fbf\u540e\u7eed\u6839\u636e\u7528\u6237\u7684\u8f93\u5165\u6765\u68c0\u7d22\u76f8\u4f3c\u5ea6\u9ad8\u7684\u77e5\u8bc6\u3002\u8fd9\u91cc\u5c31\u9700\u8981\u7528\u5230\u5411\u91cf\u6570\u636e\u5e93\u6765\u5b58\u50a8embedding\u6a21\u578b\u7684\u8f93\u51fa\u3002 \u4ee5\u4e0a\u662f\u77e5\u8bc6\u5e93\u5904\u7406\u6b65\u9aa4\uff0c\u8fd9\u4e00\u90e8\u5206\u901a\u5e38\u662f\u8fd0\u884c\u5728\u5e94\u7528\u7684\u540e\u53f0\uff0c\u9700\u8981\u6301\u7eed\u4e0d\u65ad\u7684\u83b7\u53d6\u6700\u65b0\u7684\u77e5\u8bc6\uff08\u6bd4\u5982\u6700\u65b0\u7684\u4ea7\u54c1\u6587\u6863\u3001\u6280\u672f\u624b\u518c\uff09\uff0c\u5e76\u66f4\u65b0\u5411\u91cf\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u3002 \u63a5\u4e0b\u6765\u662f\u7528\u6237\u95ee\u7b54\u7684\u5904\u7406\u6d41\u7a0b\uff1a<\/li>\n<li>\u77e5\u8bc6\u68c0\u7d22\uff1a\u5c06\u7528\u6237\u7684\u95ee\u9898\u5411\u91cf\u5316\uff0c\u7136\u540e\u5230\u5411\u91cf\u5316\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u76f8\u4f3c\u5ea6\u6700\u9ad8\u7684\u77e5\u8bc6\uff08\u53ef\u4ee5\u6839\u636e\u9700\u8981\u9009\u53d6\u76f8\u4f3c\u5ea6\u9ad8\u7684\u524dn\u9879\uff09\u3002<\/li>\n<li>AI\u8f85\u52a9\u89e3\u7b54\uff1a\u5c06\u68c0\u7d22\u5230\u7684\u77e5\u8bc6\u4ee5\u53ca\u8bbe\u5b9a\u597d\u7684prompt\u4fe1\u606f\u4e00\u8d77\u53d1\u9001\u7ed9ai\u6a21\u578b\uff0cai\u6a21\u578b\u4f1a\u7ed3\u5408\u81ea\u5df1\u5df2\u6709\u7684\u77e5\u8bc6\u4ee5\u53ca\u77e5\u8bc6\u5e93\u4e2d\u68c0\u7d22\u5230\u7684\u77e5\u8bc6\u8fdb\u884c\u6700\u7ec8\u7684\u7b54\u6848\u751f\u6210\u3002<\/li>\n<\/ol>\n<h2 data-id=\"heading-10\">LangChain\u57fa\u672c\u7528\u6cd5<\/h2>\n<p>\u6839\u636e\u4e0a\u9762\u7684\u6d41\u7a0b\uff0c\u6211\u4eec\u5b8c\u5168\u53ef\u4ee5\u81ea\u4e3b\u7684\u5b9e\u73b0\u4e00\u4e2aai\u5e94\u7528\u4e86\uff0c\u4e3a\u4ec0\u4e48\u8981\u5f15\u5165LangChain\u5462\uff1f<\/p>\n<p>\u5982\u679c\u4f60\u901a\u8bfb\u4e86<a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fpython.langchain.com%2Fdocs%2Fuse_cases%2Fquestion_answering%2F\" target=\"_blank\" title=\"https:\/\/python.langchain.com\/docs\/use_cases\/question_answering\/\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">LangChain\u7684\u6587\u6863<\/a>\uff0c\u5bf9\u4e8e\u5982\u4f55\u501f\u52a9LangChain\u5b8c\u6210\u77e5\u8bc6\u5e93\u5e94\u7528\u5e94\u8be5\u6709\u4e86\u57fa\u672c\u7684\u8ba4\u8bc6\u3002\u7ed3\u5408\u4e0a\u9762\u7684\u57fa\u672c\u539f\u7406\uff0c\u6211\u4eec\u6765\u770b\u4e0bLangChain\u80fd\u4e3a\u6211\u4eec\u63d0\u4f9b\u54ea\u4e9b\u80fd\u529b\u3002<\/p>\n<ol>\n<li>\u6570\u636e\u52a0\u8f7d\u80fd\u529b \u5728\u4e0a\u9762\u7684\u6b65\u9aa4\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u8981\u5b8c\u6210\u7684\u662f\u5c06\u5df2\u6709\u7684\u77e5\u8bc6\u6587\u6863\u5904\u7406\u6210\u6587\u672c\u6570\u636e\u3002LangChain\u76ee\u524d\u5df2\u7ecf\u5185\u7f6e\u7c7b\u975e\u5e38\u591a\u7684\u6587\u6863\u7c7b\u578b\u5904\u7406\u80fd\u529b\uff0c\u5305\u62ec\u5e38\u89c1\u7684pdf\u3001docx\u3001markdown\u3001html\u3001json\u3001csv\u7b49\uff0c\u540c\u65f6\u517c\u5bb9\u4e86\u4e00\u767e\u591a\u79cd\u6570\u636e\u6e90\uff0c\u51e0\u4e4e\u56ca\u62ec\u4e86\u5e02\u9762\u4e0a\u6240\u6709\u6700\u5e38\u7528\u7684\u670d\u52a1\uff0c\u5305\u62ecS3\u3001Bilibili\u3001EverNote\u3001Github\u3001Hacker News\u3001Slack\u3001Telegram\u7b49\u7b49\u3002 \u4e0b\u9762\u662f\u52a0\u8f7dWeb\u6570\u636e\u7684WebBaseLoader\u7684\u4f7f\u7528\u65b9\u6cd5\uff1a<\/li>\n<\/ol>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">from langchain.document_loaders import WebBaseLoader<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-attr\">loader<\/span> = WebBaseLoader(<span class=\"hljs-string\">\"https:\/\/lilianweng.github.io\/posts\/2023-06-23-agent\/\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><span class=\"hljs-attr\">data<\/span> = loader.load()<\/span>\n<\/code><\/pre>\n<ol>\n<li>\u6570\u636e\u5207\u5206\u80fd\u529b LangChain\u63d0\u4f9b\u4e86\u6587\u672c\u5207\u5206\u5de5\u5177\uff0c\u53ef\u4ee5\u65b9\u4fbf\u7684\u5c06\u52a0\u8f7d\u540e\u7684\u6587\u672c\u8fdb\u884c\u5207\u5206\u5904\u7406\u3002\u4e0a\u9762\u5c06\u7f51\u9875\u5185\u5bb9\u52a0\u8f7d\u5230data\u5bf9\u8c61\u4e4b\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528RecursiveCharacterTextSplitter\u8fdb\u884c\u6587\u672c\u5207\u5206\uff1a<\/li>\n<\/ol>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">from langchain.text_splitter import RecursiveCharacterTextSplitter<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-attr\">text_splitter<\/span> = RecursiveCharacterTextSplitter(chunk_size = <span class=\"hljs-number\">500<\/span>, chunk_overlap = <span class=\"hljs-number\">0<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><span class=\"hljs-attr\">all_splits<\/span> = text_splitter.split_documents(data)<\/span>\n<\/code><\/pre>\n<ol>\n<li>\u5411\u91cf\u5316\u80fd\u529b<\/li>\n<\/ol>\n<p>LangChain\u652f\u6301\u5e38\u89c1\u7684\u5411\u91cf\u5316\u6570\u636e\u5e93\u4ee5\u53caembedding\u6a21\u578b\u63a5\u5165\u80fd\u529b\uff0c\u4ee5MemFire Cloud\u6258\u7ba1\u7684SupaBase\u548copenai embedding\u6a21\u578b\u4e3a\u4f8b\uff08<a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fpython.langchain.com%2Fdocs%2Fintegrations%2Fvectorstores%2Fsupabase\" target=\"_blank\" title=\"https:\/\/python.langchain.com\/docs\/integrations\/vectorstores\/supabase\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">\u53c2\u8003<\/a>\uff09\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">import os<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">from supabase.client import Client, create_client<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">from langchain.vectorstores import SupabaseVectorStore<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">from langchain.embeddings import OpenAIEmbeddings<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"><span class=\"hljs-attr\">supabase_url<\/span> = os.environ.get(<span class=\"hljs-string\">\"SUPABASE_URL\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"><span class=\"hljs-attr\">supabase_key<\/span> = os.environ.get(<span class=\"hljs-string\">\"SUPABASE_SERVICE_KEY\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">client: <span class=\"hljs-attr\">Client<\/span> = create_client(supabase_url, supabase_key)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\"><span class=\"hljs-attr\">vector_store<\/span> = SupabaseVectorStore.from_documents(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\"> &nbsp; &nbsp;all_splits, OpenAIEmbeddings(), <span class=\"hljs-attr\">client<\/span>=client)<\/span>\n<\/code><\/pre>\n<p>\u8981\u4f7f\u7528LangChain + pgvector\u7684\u5411\u91cf\u5316\u6570\u636e\u5e93\u80fd\u529b\uff0c\u9700\u8981\u5728MemFire Cloud\u4e0a\u521b\u5efa\u5e94\u7528\uff0c\u5e76\u5f00\u542fvector\u6269\u5c55\uff0c\u7136\u540e\u521b\u5efadocuments\u8868\u548c\u51fd\u6570\u3002\u53ef\u4ee5\u4f7f\u7528SQL\u8bed\u53e5\u5b8c\u6210\u8fd9\u4e9b\u64cd\u4f5c\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">sql<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-sql code-block-extension-codeShowNum\" lang=\"sql\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-comment\">-- Enable the pgvector extension to work with embedding vectors<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-keyword\">create<\/span> extension vector;<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"><span class=\"hljs-comment\">-- Create a table to store your documents<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\"><span class=\"hljs-keyword\">create<\/span> <span class=\"hljs-keyword\">table<\/span> documents (<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"> &nbsp;  id bigserial <span class=\"hljs-keyword\">primary<\/span> key,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"> &nbsp;  content text, <span class=\"hljs-comment\">-- corresponds to Document.pageContent<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\"> &nbsp;  metadata jsonb, <span class=\"hljs-comment\">-- corresponds to Document.metadata<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\"> &nbsp;  embedding vector(<span class=\"hljs-number\">1536<\/span>) <span class=\"hljs-comment\">-- 1536 works for OpenAI embeddings, change if needed<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\">);<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\"><span class=\"hljs-keyword\">CREATE<\/span> <span class=\"hljs-keyword\">FUNCTION<\/span> match_documents(query_embedding vector(<span class=\"hljs-number\">1536<\/span>), match_count <span class=\"hljs-type\">int<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\"> &nbsp; <span class=\"hljs-keyword\">RETURNS<\/span> <span class=\"hljs-keyword\">TABLE<\/span>(<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\"> &nbsp; &nbsp; &nbsp; id uuid,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"15\"> &nbsp; &nbsp; &nbsp; content text,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"16\"> &nbsp; &nbsp; &nbsp; metadata jsonb,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"17\"> &nbsp; &nbsp; &nbsp; <span class=\"hljs-comment\">-- we return matched vectors to enable maximal marginal relevance searches<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"18\"> &nbsp; &nbsp; &nbsp; embedding vector(<span class=\"hljs-number\">1536<\/span>),<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"19\"> &nbsp; &nbsp; &nbsp; similarity <span class=\"hljs-type\">float<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"20\"> &nbsp; <span class=\"hljs-keyword\">LANGUAGE<\/span> plpgsql<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"21\"> &nbsp; <span class=\"hljs-keyword\">AS<\/span> $$<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"22\"> &nbsp; # variable_conflict use_column<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"23\"><span class=\"hljs-keyword\">BEGIN<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"24\"> &nbsp; <span class=\"hljs-keyword\">RETURN<\/span> query<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"25\"> &nbsp; <span class=\"hljs-keyword\">SELECT<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"26\"> &nbsp; &nbsp; &nbsp; id,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"27\"> &nbsp; &nbsp; &nbsp; content,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"28\"> &nbsp; &nbsp; &nbsp; metadata,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"29\"> &nbsp; &nbsp; &nbsp; embedding,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"30\"> &nbsp; &nbsp; &nbsp; <span class=\"hljs-number\">1<\/span> <span class=\"hljs-operator\">-<\/span>(documents.embedding <span class=\"hljs-operator\">&lt;=&gt;<\/span> query_embedding) <span class=\"hljs-keyword\">AS<\/span> similarity<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"31\"> &nbsp; <span class=\"hljs-keyword\">FROM<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"32\"> &nbsp; &nbsp; &nbsp; documents<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"33\"> &nbsp; <span class=\"hljs-keyword\">ORDER<\/span> <span class=\"hljs-keyword\">BY<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"34\"> &nbsp; &nbsp; &nbsp; documents.embedding <span class=\"hljs-operator\">&lt;=&gt;<\/span> query_embedding<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"35\"> &nbsp; LIMIT match_count;<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"36\"><span class=\"hljs-keyword\">END<\/span>;<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"37\">$$;<\/span>\n<\/code><\/pre>\n<ol>\n<li>\u77e5\u8bc6\u68c0\u7d22 \u4e0a\u9762\u4ecb\u7ecdLangChain\u7ec4\u5408openai embedding \u548c pgvector\u8fdb\u884c\u5411\u91cf\u5316\u5904\u7406\u548c\u5b58\u50a8\uff0cLangChain\u7684vectorstore\u53ef\u4ee5\u76f4\u63a5\u5b9e\u73b0\u5411\u91cf\u5316\u68c0\u7d22\u529f\u80fd\uff0c\u5c06\u7528\u6237\u7684\u95ee\u9898\u8f6c\u6362\u4e3a\u6700\u5207\u8fd1\u7684\u77e5\u8bc6\u5e93\u6570\u636e\uff1a<\/li>\n<\/ol>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-attr\">query<\/span> = <span class=\"hljs-string\">\"How to build llm auto agent\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-attr\">matched_docs<\/span> = vector_store.similarity_search(query)<\/span>\n<\/code><\/pre>\n<p>matched_docs\u5c31\u662f\u4e0e\u7528\u6237\u63d0\u95ee\u76f8\u5173\u6027\u6700\u9ad8\u7684\u7684\u77e5\u8bc6\u5e93\u5185\u5bb9\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u5c31\u53ef\u4ee5\u5c06matched_docs + \u7528\u6237\u7684\u63d0\u95ee\u6253\u5305\u63d0\u4ea4\u7ed9AI\uff0c\u8ba9AI\u5e2e\u6211\u4eec\u751f\u6210\u6700\u7ec8\u7684\u7b54\u6848\u4e86\u3002<\/p>\n<h1 data-id=\"heading-11\">\u5982\u4f55\u5c06\u77e5\u8bc6\u5e93\u548c\u7528\u6237\u95ee\u9898\u6253\u5305\u63d0\u4ea4\u7ed9openai<\/h1>\n<p>\u5728GPT\u521d\u4f53\u9a8c\u7ae0\u8282\uff0c\u6211\u4eec\u5df2\u7ecf\u4ecb\u7ecd\u4e86GPT\u63a5\u53e3\u7684\u4f7f\u7528\u65b9\u6cd5\u548c\u53c2\u6570\u542b\u4e49\uff0c\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528assistant\u89d2\u8272\u5c06\u6211\u4eec\u7684\u77e5\u8bc6\u5e93\u6253\u5305\u6210messages\uff0c\u7136\u540e\u5c06\u7528\u6237\u7684\u95ee\u9898\u4ee5user\u89d2\u8272\u6253\u5305\u5230messages\u4e2d\uff0c\u6700\u540e\u8c03\u7528openai\u7684\u63a5\u53e3\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">go<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-go code-block-extension-codeShowNum\" lang=\"go\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">messages=[<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"> &nbsp; {<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"assistant\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: doc.page_content} <span class=\"hljs-keyword\">for<\/span> doc in matched_docs<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">]<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">messages.<span class=\"hljs-built_in\">append<\/span>({<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"user\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: query})<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">response = openai.ChatCompletion.create(<span class=\"hljs-string\">\"gpt-3.5-turbo\"<\/span>, messages=messages)<\/span>\n<\/code><\/pre>\n<p>\u4f60\u4e5f\u53ef\u4ee5\u5c06\u6587\u6863\u548c\u95ee\u9898\u5168\u90e8\u6253\u5305\u6210user\u89d2\u8272\u7684message\uff0c\u5927\u6982\u7684\u683c\u5f0f\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-attr\">content<\/span> = <span class=\"hljs-string\">'n'<\/span>.join[doc.page_content for doc in matched_docs]<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">content += f'n\u95ee\u9898\uff1a{query}'<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"><span class=\"hljs-attr\">messages<\/span>=[<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"> &nbsp; {<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"user\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: content }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\">]<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"><span class=\"hljs-attr\">response<\/span> = openai.ChatCompletion.create(<span class=\"hljs-string\">\"gpt-3.5-turbo\"<\/span>, messages=messages)<\/span>\n<\/code><\/pre>\n<h1 data-id=\"heading-12\">\u5982\u4f55\u8ba9AI\u751f\u6210\u66f4\u7b26\u5408\u9884\u671f\u7684\u7ed3\u679c<\/h1>\n<p>\u6211\u4eec\u90fd\u77e5\u9053\uff0cChatGPT\u6709\u7684\u65f6\u5019\u4f1a\u80e1\u8a00\u4e71\u8bed\uff0c\u4e00\u822c\u4f1a\u53d1\u751f\u5728GPT\u6a21\u578b\u4e2d\u6ca1\u6709\u76f8\u5173\u7684\u77e5\u8bc6\u7684\u65f6\u5019\u3002\u4e3a\u4e86\u8ba9AI\u56de\u7b54\u7684\u66f4\u4e25\u8c28\uff0c\u6211\u4eec\u53ef\u4ee5\u7ed9AI\u4e00\u4e9b\u660e\u786e\u7684\u6307\u4ee4\uff0c\u6bd4\u5982\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">ini<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-ini code-block-extension-codeShowNum\" lang=\"ini\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-attr\">docs<\/span> = <span class=\"hljs-string\">'n'<\/span>.join[doc.page_content for doc in matched_docs]<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-attr\">content<\/span> = f<span class=\"hljs-string\">\"'''{docs}'''\"<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">content += f'n\u95ee\u9898\uff1a{query}'<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\"><span class=\"hljs-attr\">messages<\/span> = [<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"> &nbsp;  {<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"system\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: <span class=\"hljs-string\">\"\u6211\u4f1a\u5c06\u6587\u6863\u5185\u5bb9\u4ee5\u4e09\u5f15\u53f7(''')\u5f15\u8d77\u6765\u53d1\u9001\u7ed9\u4f60\uff0c\u5982\u679c\u4f60\u65e0\u6cd5\u4ece\u6211\u63d0\u4f9b\u7684\u6587\u6863\u5185\u5bb9\u4e2d\u627e\u5230\u7b54\u6848\uff0c\u8bf7\u56de\u7b54\uff1a\"<\/span>\u6211\u65e0\u6cd5\u627e\u5230\u8be5\u95ee\u9898\u7684\u7b54\u6848<span class=\"hljs-string\">\"\u3002\u8bf7\u4f7f\u7528\u4e2d\u6587\u56de\u7b54\u95ee\u9898\u3002\"<\/span>},<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"> &nbsp;  {<span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"user\"<\/span>, <span class=\"hljs-string\">\"content\"<\/span>: content }<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">]<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\"><span class=\"hljs-attr\">response<\/span> = openai.ChatCompletion.create(<span class=\"hljs-string\">\"gpt-3.5-turbo\"<\/span>, messages=messages)<\/span>\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u6709\u4e00\u4efdGPT\u7684<a href=\"https:\/\/link.juejin.cn?target=https%3A%2F%2Fplatform.openai.com%2Fdocs%2Fguides%2Fgpt-best-practices\" target=\"_blank\" title=\"https:\/\/platform.openai.com\/docs\/guides\/gpt-best-practices\" ref=\"nofollow noopener noreferrer\" rel=\"noopener\">\u6700\u4f73\u5b9e\u8df5<\/a>\u53ef\u4ee5\u53c2\u8003\u3002<\/p>\n<h1 data-id=\"heading-13\">\u4f7f\u7528MemFire Cloud\u4f5c\u4e3aAI\u7684\u8bb0\u5fc6\u4f53<\/h1>\n<p>openai\u7684GPT\u6a21\u578b\u672c\u8eab\u662f\u6ca1\u6709\u8bb0\u5fc6\u529b\u7684\uff0c\u5982\u679c\u6211\u4eec\u5e0c\u671b\u77e5\u8bc6\u5e93\u5e94\u7528\u80fd\u50cfChatGPT\u4e00\u6837\u8ddf\u4f7f\u7528\u8005\u8fdb\u884c\u8fde\u7eed\u7684\u5bf9\u8bdd\uff0c\u9700\u8981\u8ba9\u6211\u4eec\u7684\u5e94\u7528\u6709\u8bb0\u5fc6\u80fd\u529b\uff0c\u5e76\u5c06\u8bb0\u5fc6\u7684\u4fe1\u606f\u5728\u4e0b\u4e00\u6b21\u5bf9\u8bdd\u65f6\u53d1\u9001\u7ed9openai\u7684\u6a21\u578b\uff0c\u4ee5\u4fbf\u6a21\u578b\u4e86\u89e3\u524d\u9762\u8ddf\u7528\u6237\u804a\u4e86\u4e9b\u4ec0\u4e48\u3002<\/p>\n<p>\u53e6\u5916openai\u7684\u63a5\u53e3\u662f\u6709token\u9650\u5236\u7684\uff0c\u5f53\u8fde\u7eed\u5bf9\u8bdd\u7684\u5185\u5bb9\u8d85\u51fa\u4e86\u4e00\u6b21api\u8c03\u7528\u7684token\u9650\u5236\u65f6\uff0c\u9700\u8981\u538b\u7f29\u5386\u53f2\u5bf9\u8bdd\u4fe1\u606f\u3002\u6709\u4e24\u79cd\u538b\u7f29\u65b9\u5f0f\uff1a<\/p>\n<ol>\n<li>\u65b9\u5f0f1\uff1a\u8ba9openai\u63d0\u70bc\u5386\u53f2\u5bf9\u8bdd\u7684\u6982\u8981\u4fe1\u606f\uff0c\u7136\u540e\u4f7f\u7528\u6982\u8981\u4fe1\u606f\u52a0\u6700\u65b0\u95ee\u9898\u8fdb\u884c\u95ee\u7b54\uff1b<\/li>\n<li>\u65b9\u5f0f2\uff1a\u4ece\u5386\u53f2\u5bf9\u8bdd\u4e2d\u68c0\u7d22\u4e0e\u6700\u65b0\u95ee\u9898\u76f8\u5173\u6027\u6bd4\u8f83\u9ad8\u7684\u5185\u5bb9\uff0c\u53d1\u9001\u7ed9openai\uff1b<\/li>\n<\/ol>\n<p>\u4e0d\u8bba\u54ea\u79cd\u65b9\u5f0f\uff0c\u4f60\u90fd\u9700\u8981\u5bf9\u5f53\u524d\u4f1a\u8bdd\u7684\u5386\u53f2\u6570\u636e\u8fdb\u884c\u8bb0\u5f55\uff1a<\/p>\n<ol>\n<li>\u65b9\u5f0f1\uff1a\u9700\u8981\u8bb0\u5f55\u4e0d\u65ad\u8fed\u4ee3\u7684\u6458\u8981\u4fe1\u606f\u3002\u56e0\u4e3atoken\u6570\u91cf\u9650\u5236\uff0c\u4f60\u4e0d\u80fd\u4e00\u6b21\u6027\u83b7\u5f97\u6240\u6709\u5386\u53f2\u5bf9\u8bdd\u7684\u6458\u8981\uff0c\u56e0\u6b64\u9700\u8981\u4e0d\u505c\u7684\u53e0\u52a0\u5386\u53f2\u6458\u8981\u548c\u6700\u65b0\u5bf9\u8bdd\u6570\u636e\uff0c\u751f\u6210\u65b0\u7684\u6458\u8981\u5e76\u4ee5\u4f1a\u8bddid\u4e3a\u6807\u8bc6\uff0c\u8bb0\u5f55\u5230\u6570\u636e\u5e93\u4e2d\u3002<\/li>\n<li>\u65b9\u5f0f2\uff1a\u9700\u8981\u5c06\u5386\u53f2\u5bf9\u8bdd\u7684\u4fe1\u606f\u901a\u8fc7embedding\u6a21\u578b\u5411\u91cf\u5316\uff0c\u8981\u5e76\u4e3a\u6bcf\u4e2a\u4f1a\u8bdd\u6784\u5efa\u4e0a\u4e0b\u6587\u77e5\u8bc6\u5e93\u7d22\u5f15\uff0c\u68c0\u7d22\u7684\u65f6\u5019\uff0c\u53ea\u68c0\u7d22\u5f53\u524d\u4f1a\u8bdd\u7684\u76f8\u4f3c\u5185\u5bb9\u3002<\/li>\n<\/ol>\n<p>Supabase SDK\u63d0\u4f9b\u4e86\u975e\u5e38\u65b9\u4fbf\u7684\u64cd\u4f5c\u6570\u636e\u5e93\u7684\u63a5\u53e3\uff0c\u4ee5\u4e0b\u4e3a\u8bb0\u5f55\u4f1a\u8bdd\u5386\u53f2\u6d88\u606f\u7684\u8868\u4ee5\u53ca\u57fa\u672c\u7684\u64cd\u4f5c\u65b9\u6cd5\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">sql<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-sql code-block-extension-codeShowNum\" lang=\"sql\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\"><span class=\"hljs-comment\">-- \u5386\u53f2\u6d88\u606f\u8868\u5b9a\u4e49<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\"><span class=\"hljs-keyword\">create<\/span> <span class=\"hljs-keyword\">table<\/span> history_messages (<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\"> &nbsp;  id bigserial <span class=\"hljs-keyword\">primary<\/span> key,<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\"> &nbsp;  session_id text, <span class=\"hljs-comment\">-- \u4f1a\u8bddid<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\"> &nbsp;  role text, <span class=\"hljs-comment\">-- \u4f1a\u8bdd\u89d2\u8272\uff08user or ai\uff09<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\"> &nbsp;  message text, <span class=\"hljs-comment\">-- \u4f1a\u8bdd\u4fe1\u606f<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\"> &nbsp;  create_at <span class=\"hljs-type\">timestamp<\/span> <span class=\"hljs-keyword\">default<\/span>(now()) <span class=\"hljs-comment\">-- \u521b\u5efa\u65f6\u95f4<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">)<\/span>\n<\/code><\/pre>\n<p>\u64cd\u4f5c\u5386\u53f2\u6d88\u606f\u8868\u7684\u65b9\u6cd5\uff1a<\/p>\n<pre><\/div><div class=\"code-block-extension-headerRight\"><span class=\"code-block-extension-lang\">lua<\/span><div class=\"code-block-extension-copyCodeBtn\">\u590d\u5236\u4ee3\u7801<\/div><\/div><\/div><code class=\"hljs language-lua code-block-extension-codeShowNum\" lang=\"lua\"><span class=\"code-block-extension-codeLine\" data-line-num=\"1\">import <span class=\"hljs-built_in\">os<\/span><\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"2\">from supabase.client import Client, create_client<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"3\">from langchain.vectorstores import SupabaseVectorStore<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"4\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"5\"># \u521d\u59cb\u5316\u5ba2\u6237\u7aef<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"6\">url = <span class=\"hljs-built_in\">os<\/span>.environ.get(<span class=\"hljs-string\">\"SUPABASE_URL\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"7\">key = <span class=\"hljs-built_in\">os<\/span>.environ.get(<span class=\"hljs-string\">\"SUPABASE_SERVICE_KEY\"<\/span>)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"8\">client: Client = create_client(url, key)<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"9\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"10\"># \u5f80\u4f1a\u8bddxxxxx\u63d2\u5165\u4e00\u6761\u5386\u53f2\u6d88\u606f<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"11\">client.<span class=\"hljs-built_in\">table<\/span>(<span class=\"hljs-string\">\"history_messages\"<\/span>).<span class=\"hljs-built_in\">insert<\/span>({<span class=\"hljs-string\">\"session_id\"<\/span>: <span class=\"hljs-string\">\"xxxxx\"<\/span>, <span class=\"hljs-string\">\"role\"<\/span>: <span class=\"hljs-string\">\"user\"<\/span>, <span class=\"hljs-string\">\"message\"<\/span>: <span class=\"hljs-string\">\"\u4f60\u597d\"<\/span>}).<span class=\"hljs-built_in\">execute<\/span>()<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"12\">\u200b<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"13\"># \u67e5\u8be2\u4f1a\u8bddid\u662fxxxxx\u7684\u6240\u6709\u5386\u53f2\u6d88\u606f<\/span>\n<span class=\"code-block-extension-codeLine\" data-line-num=\"14\">client.<span class=\"hljs-built_in\">table<\/span>(<span class=\"hljs-string\">\"history_messages\"<\/span>).<span class=\"hljs-built_in\">select<\/span>(<span class=\"hljs-string\">\"*\"<\/span>).eq(<span class=\"hljs-string\">\"session_id\"<\/span>, <span class=\"hljs-string\">\"xxxxx\"<\/span>).<span class=\"hljs-built_in\">execute<\/span>()<\/span>\n<\/code><\/pre>","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528FastAPI + MemFire Cloud + LangChain\u5f00\u53d1ChatGPT\u5e94\u7528<\/p>\n","protected":false},"author":1,"featured_media":2868,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"rank_math_title":"LangChain + FastAPI: \u6784\u5efaAI\u77e5\u8bc6\u5e93\u5e94\u7528 - \u5948\u65af\u79d1\u6280\u793e\u533a","rank_math_description":"\u63a2\u7d22\u5982\u4f55\u4f7f\u7528LangChain, FastAPI, OpenAI \u548cMemFire Cloud\u6784\u5efa\u5f3a\u5927\u7684AI\u77e5\u8bc6\u5e93\u5e94\u7528. \u672c\u6587\u6db5\u76d6\u4e86\u6570\u636e\u5904\u7406\u3001\u5411\u91cf\u5316\u3001\u77e5\u8bc6\u68c0\u7d22\u548c\u4e0eGPT\u6a21\u578b\u4ea4\u4e92\u7b49\u5173\u952e\u6b65\u9aa4, \u52a9\u60a8\u6253\u9020\u667a\u80fd\u95ee\u7b54\u7cfb\u7edf.","rank_math_focus_keyword":"LangChain, FastAPI, OpenAI, \u77e5\u8bc6\u5e93, AI\u5e94\u7528\u5f00\u53d1","views":"26","footnotes":""},"categories":[3],"tags":[126,127,128,129,136],"collection":[],"class_list":["post-1246","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fenlei2","tag-gpt","tag-ai","tag-128","tag-129","tag-136"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1246","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/comments?post=1246"}],"version-history":[{"count":0,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/posts\/1246\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/media\/2868"}],"wp:attachment":[{"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/media?parent=1246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/categories?post=1246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/tags?post=1246"},{"taxonomy":"collection","embeddable":true,"href":"https:\/\/www.nicekj.com\/nicekj2024\/wp\/v2\/collection?post=1246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}