{"id":16237,"date":"2025-03-01T17:26:16","date_gmt":"2025-03-01T08:26:16","guid":{"rendered":"https:\/\/www.tetsumag.com\/?p=16237"},"modified":"2026-08-01T13:35:41","modified_gmt":"2026-08-01T04:35:41","slug":"400","status":"publish","type":"post","link":"https:\/\/tetsumag.com\/blog\/2025\/03\/01\/400\/","title":{"rendered":"Langchain\u306eLCEL(chain)\u3092\u9244\u7b4b\u5de5\u304c\u5168\u529b\u3067\u7406\u89e3\u3059\u308b"},"content":{"rendered":"\n<p>\u9244\u7b4b\u5de5\u3067\u3082Langchain\u3092\u7406\u89e3\u3067\u304d\u308b\u3093\u3067\u3059\u3088\u3002<\/p>\n<p>\u8210\u3081\u306a\u3044\u3067\u304f\u3060\u3055\u3044(&#8216;\u03c9&#8217;)<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u8077\u4eba\u3067\u3082\u308f\u304b\u308bLCEL(chain\u306e\u6982\u5ff5)\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p><span style=\"color: #008000;\">\u3048\uff1f\u307e\u3060chain\u306e\u6982\u5ff5\u304c\u308f\u304b\u3089\u306a\u3044\u3063\u3066\uff1f( \uff9f\u0414\uff9f)\u305d\u3093\u306a\u65b9\u306f\u3053\u3061\u3089\u306e\u8b1b\u5ea7\u3092\u3069\u3046\u305e\uff01<\/span><br \/>\n<a href=\"https:\/\/www.udemy.com\/course\/azurechat\/?referralCode=C7DF17886287AB792DFE&amp;couponCode=TETSUMAG003\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2025\/01\/a5d23abb-7402-4fa7-b513-06d456fda913.png\" alt=\"\" width=\"750\" height=\"422\" class=\"aligncenter size-full wp-image-16078\" srcset=\"https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2025\/01\/a5d23abb-7402-4fa7-b513-06d456fda913.png 750w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2025\/01\/a5d23abb-7402-4fa7-b513-06d456fda913-600x338.png 600w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/a><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_38 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">\u76ee\u6b21<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #444444;color:#444444\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #444444;color:#444444\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/tetsumag.com\/blog\/2025\/03\/01\/400\/#LECLchain%E3%81%A3%E3%81%A6%E4%BD%95%E3%81%AA%E3%81%AE%EF%BC%9F\" title=\"LECL(chain)\u3063\u3066\u4f55\u306a\u306e\uff1f\">LECL(chain)\u3063\u3066\u4f55\u306a\u306e\uff1f<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/tetsumag.com\/blog\/2025\/03\/01\/400\/#%E3%80%8C%E3%80%8D%E3%81%93%E3%82%8C%E3%81%8Cchain\" title=\"\u300c|\u300d\u3053\u308c\u304cchain\">\u300c|\u300d\u3053\u308c\u304cchain<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/tetsumag.com\/blog\/2025\/03\/01\/400\/#chain%E3%82%92%E4%BD%BF%E3%82%8F%E3%81%AA%E3%81%84%E5%A0%B4%E5%90%88\" title=\"chain\u3092\u4f7f\u308f\u306a\u3044\u5834\u5408\">chain\u3092\u4f7f\u308f\u306a\u3044\u5834\u5408<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/tetsumag.com\/blog\/2025\/03\/01\/400\/#chain%E3%82%92%E4%BD%BF%E3%81%86%E5%A0%B4%E5%90%88\" title=\"chain\u3092\u4f7f\u3046\u5834\u5408\">chain\u3092\u4f7f\u3046\u5834\u5408<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/tetsumag.com\/blog\/2025\/03\/01\/400\/#Azure%E3%81%A7%E4%BD%9C%E3%82%8BOpenAI%E3%83%81%E3%83%A3%E3%83%83%E3%83%88%E3%82%B7%E3%82%B9%E3%83%86%E3%83%A0%E9%96%8B%E7%99%BA%E8%AC%9B%E5%BA%A7%E5%A4%A7%E5%A5%BD%E8%A9%95%EF%BC%81\" title=\"Azure\u3067\u4f5c\u308bOpenAI\u30c1\u30e3\u30c3\u30c8\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u8b1b\u5ea7\u5927\u597d\u8a55\uff01\">Azure\u3067\u4f5c\u308bOpenAI\u30c1\u30e3\u30c3\u30c8\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u8b1b\u5ea7\u5927\u597d\u8a55\uff01<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"LECLchain%E3%81%A3%E3%81%A6%E4%BD%95%E3%81%AA%E3%81%AE%EF%BC%9F\"><\/span>LECL(chain)\u3063\u3066\u4f55\u306a\u306e\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>LCEL\uff08Language Chain Execution Logic\uff09\u306f\u3001<span style=\"color: #ff0000;\">LLM\uff08\u5927\u898f\u6a21\u8a00\u8a9e\u30e2\u30c7\u30eb\uff09\u3092\u6d3b\u7528\u3059\u308b\u969b\u306b\u3001\u5165\u529b\uff08\u30d7\u30ed\u30f3\u30d7\u30c8\uff09\u304b\u3089\u51fa\u529b\u307e\u3067\u306e\u51e6\u7406\u3092\u30c1\u30a7\u30fc\u30f3\u5316\uff08\u9023\u9396\uff09\u3057\u3066\u884c\u3046\u624b\u6cd5\u306e\u3053\u3068<\/span>\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3060\u3051\u3060\u3068\u308f\u304b\u3089\u306a\u3044\u306e\u3067\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%80%8C%E3%80%8D%E3%81%93%E3%82%8C%E3%81%8Cchain\"><\/span>\u300c|\u300d\u3053\u308c\u304cchain<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"color: #008000;\">\u300c|\u300d\u304cchain\u3060\u3068\u8a00\u308f\u308c\u3066\u3082\u3055\u3063\u3071\u308a\u308f\u304b\u308a\u307e\u305b\u3093\u306d\u3002<\/span><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"dhzXFlgSyw\"><p><a href=\"https:\/\/www.tetsumag.com\/2025\/02\/28\/399\/\">Langchain\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u3068\u4f7f\u7528\u3057\u306a\u3044\u5834\u5408\u306e\u6bd4\u8f03<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Langchain\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u3068\u4f7f\u7528\u3057\u306a\u3044\u5834\u5408\u306e\u6bd4\u8f03&#8221; &#8212; \u3066\u3064\u307e\u3050\" src=\"https:\/\/www.tetsumag.com\/2025\/02\/28\/399\/embed\/#?secret=e6GGTby2bM#?secret=dhzXFlgSyw\" data-secret=\"dhzXFlgSyw\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>\u524d\u56de\u306e\u8a18\u4e8b\u3067\u306f\u3001\u5927\u898f\u6a21\u8a00\u8a9e\u30e2\u30c7\u30eb\u3092\u52d5\u304b\u3059\u969b\u306b\u3001Langchain\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u3068\u4f7f\u7528\u3057\u306a\u3044\u5834\u5408\u306e\u6bd4\u8f03\u3092\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<p>LangChain\u3067\u306f\u3001SystemMessage\u3001HumanMessage\u3001AIMessage \u306e3\u7a2e\u985e\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u30bf\u30a4\u30d7\u3092\u4f7f\u7528\u3057\u3001\u3088\u308a\u81ea\u7136\u306b\u4f1a\u8a71\u306e\u6d41\u308c\u3092\u7ba1\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001OutputParsers\u3067\u51fa\u529b\u3057\u3066\u5f97\u3089\u308c\u308b\u56de\u7b54\u3092dict\u578b\u3068\u306f\u9055\u3046\u5f62\u3067\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001PromptTemplate\u3092\u4f7f\u7528\u3059\u308c\u3070\u3001\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u5316\u3057\u3001\u5909\u6570\u3092\u57cb\u3081\u8fbc\u3093\u3067\u52d5\u7684\u306b\u5909\u66f4\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u306e\u3067\u3001\u4fbf\u5229\u3068\u3044\u3046\u4e8b\u3082\u78ba\u8a8d\u3057\u307e\u3057\u305f\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"chain%E3%82%92%E4%BD%BF%E3%82%8F%E3%81%AA%E3%81%84%E5%A0%B4%E5%90%88\"><\/span>chain\u3092\u4f7f\u308f\u306a\u3044\u5834\u5408<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u4e0a\u8a18\u306e\u4e00\u9023\u306e\u6d41\u308c\u3092\u307e\u3068\u3081\u308b\u3068\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\"># PromptTemplate\u3067Prompt\u3092\u4f5c\u6210\r\nprompt = prompt_template.invoke({\"language\": \"italian\", \"text\": \"\u3053\u3093\u306b\u3061\u306f\"})\r\n# model\u306bPrompt\u3092\u6e21\u3057\u3066\u7d50\u679c\u3092\u53d6\u5f97\r\nresponse = model.invoke(prompt)\r\n# \u7d50\u679c\u3092\u6587\u5b57\u5217\u306b\u5909\u63db\r\nresult = parser.invoke(response)\r\nprint(result)\r\n\r\n<\/pre>\n<p><span style=\"color: #ff0000;\">\u3053\u306e\u4e00\u9023\u306e\u6d41\u308c\u3092\u3001\u3088\u308a\u7c21\u7565\u3057\u305f\u30b3\u30fc\u30c9\u3067\u5b9f\u884c\u3067\u304d\u308b\u306e\u304cchain\u3067\u3059\u3002<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"chain%E3%82%92%E4%BD%BF%E3%81%86%E5%A0%B4%E5%90%88\"><\/span>chain\u3092\u4f7f\u3046\u5834\u5408<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u3067\u306f\u3001\u4e0a\u8a18\u306e\u4e00\u9023\u306e\u6d41\u308c\u3092chain\u3092\u4f7f\u3063\u305f\u5f62\u3067\u66f8\u304d\u63db\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" title=\"\"># |\u3092\u4f7f\u3063\u3066\u3001PromptTemplate, ChatOpenAI, StrOutputParser\u3092\u3064\u306a\u3052\u308b\r\nchain = prompt_template | model | parser\r\n\r\n# \u3042\u3068\u306f\u3001chain\u3092\u4f7f\u3063\u3066\u3001\u7d50\u679c\u3092\u53d6\u5f97\r\nchain.invoke({\"language\": \"italian\", \"text\": \"\u3053\u3093\u306b\u3061\u306f\"})\r\n\r\n<\/pre>\n<p>\u304a\u308f\u308a(&#8216;\u03c9&#8217;)<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Azure%E3%81%A7%E4%BD%9C%E3%82%8BOpenAI%E3%83%81%E3%83%A3%E3%83%83%E3%83%88%E3%82%B7%E3%82%B9%E3%83%86%E3%83%A0%E9%96%8B%E7%99%BA%E8%AC%9B%E5%BA%A7%E5%A4%A7%E5%A5%BD%E8%A9%95%EF%BC%81\"><\/span>Azure\u3067\u4f5c\u308bOpenAI\u30c1\u30e3\u30c3\u30c8\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u8b1b\u5ea7\u5927\u597d\u8a55\uff01<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u4ed6\u306e\u8a18\u4e8b\u3067\u306f\u5c0f\u96e3\u3057\u304f\u89e3\u8aac\u3055\u308c\u3066\u3044\u308bchain\u3082\u672c\u8b1b\u5ea7\u3067\u306f\u7c21\u6f54\u306b\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\uff01<\/p>\n<p>\u305c\u3072\u3054\u6d3b\u7528\u304f\u3060\u3055\u3044\uff01\uff01<\/p>\n<p><a href=\"https:\/\/www.udemy.com\/course\/azurechat\/?referralCode=C7DF17886287AB792DFE&amp;couponCode=TETSUMAG003\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2025\/01\/a5d23abb-7402-4fa7-b513-06d456fda913-1.png\" alt=\"\" width=\"750\" height=\"422\" class=\"aligncenter size-full wp-image-16079\" srcset=\"https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2025\/01\/a5d23abb-7402-4fa7-b513-06d456fda913-1.png 750w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2025\/01\/a5d23abb-7402-4fa7-b513-06d456fda913-1-600x338.png 600w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/a><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.tetsumag.com\/wp-content\/uploads\/2025\/01\/202501271459.png\" alt=\"\" width=\"1920\" height=\"1080\" class=\"aligncenter size-full wp-image-16135\" srcset=\"https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2025\/01\/202501271459.png 1920w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2025\/01\/202501271459-1024x576.png 1024w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2025\/01\/202501271459-768x432.png 768w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2025\/01\/202501271459-1536x864.png 1536w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2025\/01\/202501271459-1320x743.png 1320w, https:\/\/tetsumag.com\/blog\/wp-content\/uploads\/2025\/01\/202501271459-600x338.png 600w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9244\u7b4b\u5de5\u3067\u3082Langchain\u3092\u7406\u89e3\u3067\u304d\u308b\u3093\u3067\u3059\u3088\u3002 \u8210\u3081\u306a\u3044\u3067\u304f\u3060\u3055\u3044(&#8216;\u03c9&#8217;) \u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u8077\u4eba\u3067\u3082\u308f\u304b\u308bLCEL(chain\u306e\u6982\u5ff5)\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002 \u3048\uff1f\u307e\u3060chain\u306e\u6982\u5ff5\u304c\u308f\u304b\u3089\u306a\u3044 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/tetsumag.com\/blog\/2025\/03\/01\/400\/\"> <span class=\"screen-reader-text\">Langchain\u306eLCEL(chain)\u3092\u9244\u7b4b\u5de5\u304c\u5168\u529b\u3067\u7406\u89e3\u3059\u308b<\/span> \u3082\u3063\u3068\u8aad\u3080 &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":16250,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","_themeisle_gutenberg_block_has_review":false},"categories":[127],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/tetsumag.com\/blog\/wp-json\/wp\/v2\/posts\/16237"}],"collection":[{"href":"https:\/\/tetsumag.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tetsumag.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tetsumag.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tetsumag.com\/blog\/wp-json\/wp\/v2\/comments?post=16237"}],"version-history":[{"count":13,"href":"https:\/\/tetsumag.com\/blog\/wp-json\/wp\/v2\/posts\/16237\/revisions"}],"predecessor-version":[{"id":16251,"href":"https:\/\/tetsumag.com\/blog\/wp-json\/wp\/v2\/posts\/16237\/revisions\/16251"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tetsumag.com\/blog\/wp-json\/wp\/v2\/media\/16250"}],"wp:attachment":[{"href":"https:\/\/tetsumag.com\/blog\/wp-json\/wp\/v2\/media?parent=16237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tetsumag.com\/blog\/wp-json\/wp\/v2\/categories?post=16237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tetsumag.com\/blog\/wp-json\/wp\/v2\/tags?post=16237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}