{"id":2370,"date":"2025-06-17T17:05:28","date_gmt":"2025-06-17T08:05:28","guid":{"rendered":"https:\/\/skanto.co.kr\/?p=2370"},"modified":"2025-06-18T08:16:14","modified_gmt":"2025-06-17T23:16:14","slug":"learning-langchain","status":"publish","type":"post","link":"https:\/\/skanto.co.kr\/?p=2370","title":{"rendered":"Learning LangChain"},"content":{"rendered":"\n<p>\ucd5c\uadfc\ub4e4\uc5b4 AI\uc758 \ud750\ub984\uc740 LLM\uc774\ub77c\ub294 \uac70\ub300 \uc5b8\uc5b4\ubaa8\ub378 \uac1c\ubc1c\uc744 \uc9c0\ub098 LLM\uc744 \ud65c\uc6a9\ud558\uc5ec \uc2e4\uc6a9\uc801\uc778 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \uac1c\ubc1c\ud558\ub294 \ub2e8\uacc4\ub85c \ub118\uc5b4\uac00\ub294 \uac83 \uac19\ub2e4. \uadf8 \ub300\ud45c\uc801\uc778 \uc608\uac00 MCP(Model Context Protocol)\uacfc A2A(Agent to Agent)\uac00 \uc544\ub2d0\uae4c \uc2f6\ub2e4.<\/p>\n\n\n\n<p>MCP\uc5d0 \uad00\uc2ec\uc744 \uac16\uac8c \ub418\uba74\uc11c \uad00\ub828 \uae30\uc220\uc744 \ucc3e\uc544 \ubcf4\ub358 \ucc28\uc5d0 &#8220;Learning LangChain&#8221;\uc774\ub77c\ub294 \uc62c \ud574(2025)\uc5d0 \ub098\uc628 \ub530\ub048\ub530\ub048\ud55c \ucc45\uc774 \ub208\uc5d0 \ub744\uc5b4 \uc870\uae08\uc529 \uc2dc\uac04\uc744 \ub0b4\uc5b4 \uc77d\uae30 \uc2dc\uc791\ud588\ub294\ub370 \uc624\ub298 \uadf8 \ub9c8\uc9c0\ub9c9 \ud398\uc774\uc9c0\ub97c \ub118\uacbc\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/7133+c8T+yL._SL1500_.jpg\" alt=\"\" style=\"width:631px;height:auto\"\/><\/figure>\n\n\n\n<p>OpenAI, Google, Antropic, Meta, DeepSeek\ub4f1\uc5d0\uc11c \uac01\uc0ac\uc758 LLM\uc744 \uc18c\uac1c\ud558\uace0 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub3c4\ub85d \uc6f9\uae30\ubc18 API\ub97c \uc81c\uacf5\ud558\uace0 \uc788\ub2e4. \uc774\ub4e4 LLM \uc774\uc6a9\ud558\uc5ec A.I. \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud558\uace0 \uc2f6\ub2e4\uba74 \uc774\ub4e4\uc774 \uc81c\uacf5\ud558\ub294 API\ub97c \ud65c\uc6a9\ud558\uc5ec \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud574\ub2e4 \ud55c\ub2e4. \uc774\ub807\uac8c \ub418\uba74 \ud2b9\uc815 LLM\uc5d0 \uc758\uc874\uc801\uc77c \uc218 \ubc16\uc5d0 \uc5c6\ub2e4.<\/p>\n\n\n\n<p>\uc774\uc640 \uac19\uc774 \ud2b9\uc815 LLM\uc5d0 Lock-in\ub418\ub294 \ub2e8\uc810\uc744 \ud574\uacb0\ud560 \uc218 \uc788\ub3c4\ub85d \ub098\uc628 \uac83\uc774 LangChain\uc774\ub2e4. LangChain \uc740 \uc774\ub7f0 \uc5ec\ub7ec LLM\uc758 \uae30\ub2a5\uc744 \uc77c\uad00\ub41c API\ub85c \ucd94\uc0c1\ud654\uc2dc\ucf1c \uc8fc\uba70 \ub2e4\ub978 LLM\uc73c\ub85c \uad50\uccb4 \ud558\ub354\ub77c\ub3c4 \uc77c\uad00\ub41c \uc778\ud130\ud398\uc774\uc2a4\ub85c \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158 \uac1c\ubc1c\ud560 \uc218\uc788\uac8c \ud574 \uc8fc\ub294 \ub77c\uc774\ube0c\ub7ec\ub9ac \ub610\ub294 \ud504\ub808\uc784\uc6cc\ud06c\ub85c \ubcf4\uba74 \ub420 \uac83 \uac19\ub2e4. \ub2f9\uc5f0\ud558\uac8c\uc9c0\ub9cc LangChain\uc744 \uc774\uc6a9\ud558\ub354\ub77c\ub3c4 LLM\uc744 \ud65c\uc6a9\ud558\ub824\uba74 \ud574\ub2f9 LLM API\uc5d0 \ub300\ud55c \ud0a4\ub97c \ubc1c\uae09\ubc1b\uc544 \uc801\uc6a9\ud574\uc57c \ud55c\ub2e4. \uc989, \ub0b4\ubd80\uc801\uc73c\ub85c\ub294 \uac01 LLM\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \uc790\uccb4 API\ub97c \ud65c\uc6a9\ud55c\ub2e4\ub294 \uc598\uae30\uac00 \ub41c\ub2e4.<\/p>\n\n\n\n<p>\uad73\uc774 \ube44\uad50\ud558\uc790\uba74 JDBC Driver\ucc98\ub7fc DB \uc81c\ud488\uc774 \ubcc0\uacbd\ub418\ub354\ub77c\ub3c4 \uc77c\uad00\ub41c \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc720\uc9c0\ud560 \uc218 \uc788\ub3c4\ub85d \ud574\uc900\ub2e4\uac70\ub098 \uc11c\ub85c \ub2e4\ub978 Logging \ub77c\uc774\ube0c\ub7ec\ub9ac\uc758 API\ub97c \ucd94\uc0c1\ud654\ud574\uc11c \uc77c\uad00\ub41c \ubc29\uc2dd\uc73c\ub85c \ub85c\uae45 \uae30\ub2a5\uc744 \uac1c\ubc1c\ud558\uac8c \ud574\uc8fc\ub294 SLF4J \uc640 \ube44\uc2b7\ud55c \uac1c\ub150\uc73c\ub85c \uc0dd\uac01\ud558\uba74 \ub420 \uac83 \uac19\ub2e4.<\/p>\n\n\n\n<p>\uc880 \uce5c\uadfc\ud558\uac8c \ub2e4\uac00\uc628 \ubd80\ubd84\uc740 \ucc98\uc74c\ubd80\ud130 \uc2e4\ud589 \uac00\ub2a5\ud55c \ucf54\ub4dc \uc704\uc8fc\ub85c \uc124\uba85\uc774 \uc774\uc5b4\uc9c0\uba70 \ud558\ub098\uc758 \uc608\uc81c\ub97c Python\uacfc JavaScript \uc5b8\uc5b4\ub97c \uc774\uc6a9\ud558\uc5ec \uad6c\ud604\ud558\uace0 \uc788\ub2e4\ub294 \uac83\uc774\ub2e4. \uc0ac\uc2e4 \ucf54\ub4dc\ub97c \ubcf4\uba74 \uc774 \ub450 \uc5b8\uc5b4\uc0ac\uc774\uc5d0 \ud070 \ucc28\uc774\ub294 \uc5c6\ub098. \ub098 \uac19\uc740 \uacbd\uc6b0\ub294 JavaScript\uac00 \ube44\uad50\uc801 \uce5c\uadfc\ud574\uc11c \uc27d\uac8c \uc774\ud574\ud560 \uc218 \uc788\uace0 \uc608\uc81c\ub97c \uc774\ub9ac\uc800\ub9ac \ubc14\uafd4\uac00\uba74\uc11c \ud14c\uc2a4\ud2b8\ud574 \ubd04\uc73c\ub85c\uc368 \ub0b4\ubd80 \ub3d9\uc791\ub3c4 \uc720\ucd94\ud574 \ubcfc \uc218 \uc788\uc5b4\uc11c \uc88b\uc558\ub358 \uac83 \uac19\ub2e4.<\/p>\n\n\n\n<p>Nodejs\ub9cc \uc124\uce58\ub418\uc5b4 \uc788\ub2e4\uba74 \ucc45\uc5d0 \ub098\uc628 \ubaa8\ub4e0 \uc608\uc81c\ub97c \uc27d\uac8c \uc608\uc81c\ub97c \ub530\ub77c\ud574 \ubcfc \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p>1\uc7a5\ubd80\ud130 8\uc7a5\uae4c\uc9c0\ub294 LLM\uc744 \ud65c\uc6a9\ud558\uc5ec A.I. \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \uc678\ubd80 Tool\uc744 \ud65c\uc6a9\ud558\ub3c4\ub85d \ud55c\ub2e4\ub4e0\uac00 Agent\ub97c \ub9cc\ub4dc\ub294 \uacfc\uc815\uc744 \uc608\uc81c\ub85c \uc124\uba85\ud558\uace0 \uc788\uc5b4 \uc27d\uac8c \ub530\ub77c\ud560 \uc218 \uc788\uace0 \uc124\uba85\ub3c4 \uc26c\uc6cc \uc804\uccb4\ub97c \uc774\ud574\ud558\ub294\ub370 \ub9ce\uc740 \ub3c4\uc6c0\uc774 \ub41c\ub2e4. LangGraph\uc5d0 \ub300\ud55c \uc124\uba85\ub3c4 \uc774\uc5b4\uc9c0\ub294\ub370 AI\ub97c \uc774\uc6a9\ud55c Agent \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud558\uace0\uc790 \ud55c\ub2e4\uba74 LangGraph\uc815\ub3c4\ub294 \ud544\uc218\uc801\uc73c\ub85c \uc774\ud574\ud558\uace0 \uc788\ub294 \uac83\uc774 \uc88b\uc744 \uac83 \uac19\ub2e4.<\/p>\n\n\n\n<p>\ub2e8\uc21c\ud55c Ghatbot\uac1c\ubc1c\uc5d0\uc11c\ubd80\ud130 MCP\uc758 \uae30\ubc18\uc774 \ub418\ub294 \uae30\uc220 \uadf8\ub9ac\uace0 \ub098\uc544\uac00 A2A\uc5d0 \ub300\ud55c \uac1c\ub150\uae4c\uc9c0 \uc124\uba85\ud558\uace0 \uc788\uc5b4 \uc2e4\ubb34 \uac1c\ubc1c\uc744 \uacc4\ud68d\ud55c\ub2e4\uba74 \ucd94\ucc9c\ud558\uace0 \uc2f6\ub2e4. \uadf8\uac04 \uac1c\uc778\uc801\uc73c\ub85c Chatbot \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158 \uac1c\ubc1c\uc744 \ud560 \ub54c \uc11c\ubc84\uc5d0\uc11c \uc811\uc18d\ud558\ub294 \uc0ac\ub78c\ubcc4\ub85c \uc5b4\ub5bb\uac8c Context\ub97c \ub530\ub85c \uc720\uc9c0\ud558\ub294\uc9c0 \uad81\uae08\ud588\ub294\ub370 Thread(Java Thread\uc544\ub2d8)\uac1c\ub150\uc73c\ub85c \uad6c\ud604\ud560 \uc218 \uc788\ub2e4\ub294 \uac83\uc744 \ubcf4\uace0 \uad81\uae08\uc99d\uc774 \uc27d\uac8c \ud480\ub824\ubc84\ub838\ub2e4.<\/p>\n\n\n\n<p>LLM\uc758 \ud559\uc2b5 \uc601\uc5ed\uc744 \ud655\uc7a5\ud558\uac70\ub098 \ub2e8\uc810\uc744 \uadf9\ubcf5\ud558\uae30 \uc704\ud574 RAG \uae30\uc220\uc744 \ud65c\uc6a9\ud558\ub294 \ubd80\ubd84, \uadf8\ub9ac\uace0 Vector DB(Store)\ub97c \uc774\uc6a9\ud558\uc5ec Embedding\uc744 Indexing\ud558\ub294 \uac83\ub3c4 \uc9c1\uc811 \uad6c\ud604\ud574 \ubcfc \uc218 \uc788\uc5b4 \uc774\ub7f0 \uae30\uc220\ub4e4\uc5d0 \ub300\ud55c \uac1c\ub150\uc774 \uc27d\uac8c \uc774\ud574\ub418\uc9c0 \uc54a\ub294\ub2e4\uba74 \ucf54\ub4dc\ub9cc \ub530\ub77c\ud574 \ubd10\ub3c4 \ub3c4\uc6c0\uc774 \ub420 \uac83 \uac19\ub2e4.<\/p>\n\n\n\n<p>9\uc7a5 \uc774\ud6c4\ubd80\ud130\ub294 \uc0c1\uc6a9\ud654(Production)\uc640 \ud14c\uc2a4\ud2b8\uad00\ub828 \ubd80\ubd84\uc774\ub77c \uc880 \uc9c0\ub8e8\ud558\uac8c \ub290\uaef4\uc9c8 \uc218\ub3c4 \uc788\uc744\uac83 \uac19\ub2e4. \uc608\uc81c \ucf54\ub4dc\ub85c \uc124\uba85\ud558\uace0 \uc788\uc9c0\ub9cc \uc774\ub7f0 \ubd80\ubd84\uc5d0 \uad00\uc2ec\uc774 \ud06c\uc9c0 \uc54a\ub2e4\uba74 \uac1c\ub150\uc744 \uc774\ud574\ud558\ub294 \uc815\ub3c4\ub85c \ud558\uace0 \ub118\uc5b4\uac00\ub3c4 \ubb38\uc81c\ub294 \uc5c6\uc744\uac83 \uac19\ub2e4. \uc0ac\uc2e4 9\uc7a5 \uc774\ud6c4\ubd80\ud130\ub294 \uc55e \uc7a5\uc758 \ub0b4\uc6a9\uacfc \ubb38\ucc44\uac00 \ub108\ubb34 \ub2ec\ub77c \ub2e4\ub978 \uc0ac\ub78c\uc774 \ucc45\uc744 \uc4f4 \uac83 \uac19\uc740 \ub290\ub08c\uc744 \ubc1b\uc744 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p>\uc804\uccb4\uc801\uc73c\ub85c \ubcf4\uc790\uba74 \ucd5c\uadfc MCP, A2A\uc640 \uac19\uc740 \uae30\ubc18 \uae30\uc220\uc744 \uc774\ud574\ud558\ub294 \ub370\ub294 \ub3c4\uc6c0\uc774 \ub418\ub294 \ucc45\uc774\ub77c \ud560 \uc218 \uc788\uace0, AI \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud560 \ub54c \ud544\uc694\ud55c \uc694\uc18c \uae30\uc220\ub4e4\uc744 \uc27d\uac8c \uc2b5\ub4dd\ud560 \uc218 \uc788\uc5b4\uc11c \ub098\ub984 \uc2e4\uc6a9\uc801\uc778 \ucc45\uc774\ub77c\ub294 \uc0dd\uac01\uc774 \ub4e0\ub2e4.<\/p>\n\n\n\n<p>2025.06.17<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ucd5c\uadfc\ub4e4\uc5b4 AI\uc758 \ud750\ub984\uc740 LLM\uc774\ub77c\ub294 \uac70\ub300 \uc5b8\uc5b4\ubaa8\ub378 \uac1c\ubc1c\uc744 \uc9c0\ub098 LLM\uc744 \ud65c\uc6a9\ud558\uc5ec \uc2e4\uc6a9\uc801\uc778 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \uac1c\ubc1c\ud558\ub294 \ub2e8\uacc4\ub85c \ub118\uc5b4\uac00\ub294 \uac83 \uac19\ub2e4. \uadf8 \ub300\ud45c\uc801\uc778 \uc608\uac00 MCP(Model Context Protocol)\uacfc A2A(Agent to Agent)\uac00 \uc544\ub2d0\uae4c \uc2f6\ub2e4. MCP\uc5d0 \uad00\uc2ec\uc744 \uac16\uac8c \ub418\uba74\uc11c \uad00\ub828 \uae30\uc220\uc744 \ucc3e\uc544 \ubcf4\ub358 \ucc28\uc5d0 &#8220;Learning LangChain&#8221;\uc774\ub77c\ub294 \uc62c \ud574(2025)\uc5d0 \ub098\uc628 \ub530\ub048\ub530\ub048\ud55c \ucc45\uc774 \ub208\uc5d0 \ub744\uc5b4 \uc870\uae08\uc529 \uc2dc\uac04\uc744 \ub0b4\uc5b4 \uc77d\uae30 \uc2dc\uc791\ud588\ub294\ub370 \uc624\ub298 \uadf8 \ub9c8\uc9c0\ub9c9 \ud398\uc774\uc9c0\ub97c \ub118\uacbc\ub2e4. OpenAI, Google, Antropic, Meta, DeepSeek\ub4f1\uc5d0\uc11c \uac01\uc0ac\uc758 LLM\uc744 \uc18c\uac1c\ud558\uace0 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub3c4\ub85d \uc6f9\uae30\ubc18 API\ub97c \uc81c\uacf5\ud558\uace0 \uc788\ub2e4. \uc774\ub4e4 LLM \uc774\uc6a9\ud558\uc5ec A.I. \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud558\uace0 \uc2f6\ub2e4\uba74 \uc774\ub4e4\uc774 \uc81c\uacf5\ud558\ub294&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/skanto.co.kr\/?p=2370\"> Read More<span class=\"screen-reader-text\">  Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[102],"tags":[218,229,228],"class_list":["post-2370","post","type-post","status-publish","format-standard","hentry","category-102","tag-a-i","tag-agent","tag-langchain"],"_links":{"self":[{"href":"https:\/\/skanto.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/2370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/skanto.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/skanto.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/skanto.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/skanto.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2370"}],"version-history":[{"count":10,"href":"https:\/\/skanto.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/2370\/revisions"}],"predecessor-version":[{"id":2385,"href":"https:\/\/skanto.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/2370\/revisions\/2385"}],"wp:attachment":[{"href":"https:\/\/skanto.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/skanto.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/skanto.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}