{"id":21862,"date":"2025-11-01T20:21:50","date_gmt":"2025-11-01T20:21:50","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=21862"},"modified":"2025-11-01T20:21:50","modified_gmt":"2025-11-01T20:21:50","slug":"domain-modeling-made-functional%ef%bc%88%e9%96%a2%e6%95%b0%e5%9e%8b%e3%83%89%e3%83%a1%e3%82%a4%e3%83%b3%e3%83%a2%e3%83%87%e3%83%aa%e3%83%b3%e3%82%b0%ef%bc%89%e3%81%ae%e7%a4%be%e5%86%85%e8%aa%ad","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/21862\/","title":{"rendered":"Domain Modeling Made Functional\uff08\u95a2\u6570\u578b\u30c9\u30e1\u30a4\u30f3\u30e2\u30c7\u30ea\u30f3\u30b0\uff09\u306e\u793e\u5185\u8aad\u66f8\u4f1a\u3092\u958b\u50ac\u3057\u307e\u3057\u305f &#8211; Hatena Developer Blog"},"content":{"rendered":"\n<\/p>\n<div>\n<p>\u3053\u3093\u306b\u3061\u306f\u3001CTO\u306e<a target=\"_blank\" href=\"http:\/\/blog.hatena.ne.jp\/motemen\/\" class=\"hatena-id-icon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cdn.profile-image.st-hatena.com\/users\/motemen\/profile.png\" width=\"16\" height=\"16\" alt=\"\" class=\"hatena-id-icon\"\/>id:motemen<\/a>\u3067\u3059\u3002<br \/>\n\u3082\u3046\u305a\u3044\u3076\u3093\u6614\u306e\u3053\u3068\u306b\u306a\u308b\u3093\u3067\u3059\u304c\u3001\u63b2\u984c\u306e\u3068\u304a\u308a\u300e<a target=\"_blank\" rel=\"sponsored\" href=\"https:\/\/www.amazon.co.jp\/dp\/4048931164?tag=hatena-22&amp;linkCode=ogi&amp;th=1&amp;psc=1\">Domain Modeling Made Functional\uff08\u90a6\u984c \u95a2\u6570\u578b\u30c9\u30e1\u30a4\u30f3\u30e2\u30c7\u30ea\u30f3\u30b0\uff09<\/a>\u300f\u306e\u793e\u5185\u8aad\u66f8\u4f1a\u3092\u958b\u50ac\u3057\u305f\u306e\u3067\u3001\u7c21\u5358\u306b\u307e\u3068\u3081\u3066\u307f\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002<br \/>\n\u3061\u306a\u307f\u306b\u3069\u306e\u304f\u3089\u3044\u6614\u306e\u3053\u3068\u304b\u3068\u3044\u3046\u3068\u3001\u90a6\u8a33\u7248\u306e\u767a\u58f2\u304c\u767a\u8868\u3055\u308c\u308b\u524d\u306b\u8aad\u66f8\u4f1a\u3092\u306f\u3058\u3081\u3066\u3044\u305f\u306e\u3067\u3001\u3058\u3064\u306b\u4e00\u5e74\u534a\u307b\u3069\u6614\u306e\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u2026\u2026\u3002<\/p>\n<h2 id=\"\u52d5\u6a5f\">\u52d5\u6a5f<\/h2>\n<p>\u306f\u3066\u306a\u793e\u5185\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u8077\u7a2e\u7d44\u7e54\u306b\u306f\u3001\u30c1\u30fc\u30e0\u3092\u8d8a\u3048\u3066\u7279\u5b9a\u306e\u6280\u8853\u5206\u91ce\u306b\u3064\u3044\u3066\u77e5\u898b\u5171\u6709\u3084\u6a2a\u65ad\u3059\u308b\u8ab2\u984c\u306b\u53d6\u308a\u7d44\u3080<a target=\"_blank\" href=\"https:\/\/developer.hatenastaff.com\/search?q=%E3%82%B5%E3%83%96%E4%BC%9A\">\u30b5\u30d6\u4f1a<\/a>\u3084\u3001\u5168\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u53c2\u52a0\u3059\u308b<a target=\"_blank\" href=\"https:\/\/developer.hatenastaff.com\/search?q=%E6%8A%80%E8%A1%93%E5%8B%89%E5%BC%B7%E4%BC%9A\">\u6280\u8853\u52c9\u5f37\u4f1a<\/a>\u306a\u3069\u3055\u307e\u3056\u307e\u306a\u53d6\u308a\u7d44\u307f\u304c\u3042\u308a\u3001\u3053\u3046\u3044\u3063\u305f\u5834\u3092\u901a\u3058\u3066\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u6210\u9577\u3092\u652f\u63f4\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u4ed5\u7d44\u307f\u81ea\u4f53\u306f\u3046\u307e\u304f\u56de\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u304c\u3001\u4e2d\u671f\u7684\u306a\u6280\u8853\u529b\u306e\u5411\u4e0a\u3092\u8003\u3048\u305f\u3068\u304d\u3001\u5177\u4f53\u7684\u306a\u6280\u8853\u306b\u3064\u3044\u3066\u5b66\u3076\u3053\u3068\u306f\u3067\u304d\u308b\u3082\u306e\u306e\u3001\u3088\u308a\u62bd\u8c61\u7684\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u8a2d\u8a08\u3068\u3044\u3063\u305f\u30c8\u30d4\u30c3\u30af\u306b\u3064\u3044\u3066\u5b66\u3076\u6a5f\u4f1a\u3092\u63d0\u4f9b\u3067\u304d\u3066\u3044\u306a\u3044\u306e\u304c\u3072\u3068\u3064\u306e\u8ab2\u984c\u3067\u3057\u305f\u3002<\/p>\n<p>\u500b\u4eba\u7684\u306b\u306f\u300e<a target=\"_blank\" rel=\"sponsored\" href=\"https:\/\/www.amazon.co.jp\/dp\/B00UX9VJGW?tag=hatena-22&amp;linkCode=ogi&amp;th=1&amp;psc=1\">\u5b9f\u8df5DDD<\/a>\u300f\u3067\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u3057\u3066\u6210\u9577\u3067\u304d\u305f\u5b9f\u611f\u3082\u3042\u308a\u3001\u540c\u3058\u3088\u3046\u306a\u4f53\u9a13\u3092\u63d0\u4f9b\u3067\u304d\u308c\u3070\u3068\u8003\u3048\u3066\u3044\u305f\u3068\u3053\u308d\u3001\u524d\u306b<a target=\"_blank\" href=\"https:\/\/motemen.hatenablog.com\/entry\/2022\/09\/domain-modeling-made-functional\">\u8aad\u3093\u3067\u3088\u3044\u5370\u8c61\u3092\u6301\u3063\u3066\u3044\u305f<\/a>\u300eDomain Modeling Made Functional\u300f\u306a\u3089\u3001\u540c\u3058\u3088\u3046\u306b\u30c9\u30e1\u30a4\u30f3\u99c6\u52d5\u8a2d\u8a08\u3092\u5b66\u3073\u306a\u304c\u3089\u3001\u9759\u7684\u578b\u306b\u3088\u308b\u8868\u73fe\u65b9\u6cd5\u3082\u5b66\u3076\u3053\u3068\u304c\u3067\u304d\u3066\u597d\u90fd\u5408\u3060\u3063\u305f\u305f\u3081\u3053\u3061\u3089\u306e\u8aad\u66f8\u4f1a\u3078\u306e\u53c2\u52a0\u3092\u547c\u3073\u304b\u3051\u307e\u3057\u305f\u3002\u7d50\u5c4030\u4eba\u307b\u3069\u304c\u53c2\u52a0\u3057\u3066\u304f\u308c\u305f\u3088\u3046\u3067\u3059\u3002<\/p>\n<figure class=\"figure-image figure-image-fotolife\" title=\"\u53c2\u52a0\u306e\u610f\u6c17\u8fbc\u307f\u4f1a\u5834\"><span itemscope=\"\" itemtype=\"http:\/\/schema.org\/Photograph\"><img decoding=\"async\" src=\"https:\/\/cdn-ak.f.st-hatena.com\/images\/fotolife\/h\/hatenatech\/20251031\/20251031153002.png\" width=\"1166\" height=\"944\" loading=\"lazy\" title=\"\" class=\"hatena-fotolife\" itemprop=\"image\"\/><\/span><figcaption>\u53c2\u52a0\u306e\u610f\u6c17\u8fbc\u307f\u4f1a\u5834<\/figcaption><\/figure>\n<h2 id=\"GoTypeScriptScala-\u30c1\u30fc\u30e0\u306b\u5206\u304b\u308c\u3066\u8f2a\u8aad\">Go\u30fbTypeScript\u30fbScala \u30c1\u30fc\u30e0\u306b\u5206\u304b\u308c\u3066\u8f2a\u8aad<\/h2>\n<p>\u7ae0\u3054\u3068\u306b\u5f53\u756a\u3092\u6c7a\u3081\u3066\u767a\u8868\u3059\u308b\u3001\u901a\u5e38\u306e\u8f2a\u8aad\u65b9\u5f0f\u3067\u904b\u7528\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u306f\u3066\u306a\u3067\u306fGo\u3068TypeScript\u3092\u30e1\u30a4\u30f3\u306e\u8a00\u8a9e\u3068\u3057\u3066\u63a1\u7528\u3057\u3066\u304a\u308a\u3001\u3053\u308c\u3089\u306e\u8a00\u8a9e\u3078\u306e\u7df4\u5ea6\u3092\u9ad8\u3081\u305f\u304b\u3063\u305f\u72d9\u3044\u3082\u3042\u3063\u305f\u306e\u3067\u3001Go\u30fbTypeScript\u30fbScala\u30c1\u30fc\u30e0\u306b\u5206\u304b\u308c\u3001\u3053\u306e\u672c\u3067\u63a1\u7528\u3055\u308c\u3066\u3044\u308bF#\u3067\u306e\u5b9f\u88c5\u3092\u305d\u308c\u305e\u308c\u306e\u8a00\u8a9e\u3067\u5b9f\u88c5\u3059\u308b\u3001\u3068\u3044\u3046\u6761\u4ef6\u306b\u3057\u307e\u3057\u305f\u3002\u3068\u304f\u306bGo\u3067\u540c\u3058\u3088\u3046\u306b\u5b9f\u88c5\u3059\u308b\u306e\u306f\u73fe\u5b9f\u7684\u3067\u306f\u306a\u3044\u306e\u306f\u60f3\u50cf\u3067\u304d\u307e\u3059\u304c\u3001\u9650\u754c\u3068\u5de5\u592b\u3092\u77e5\u3063\u3066\u304a\u304f\u305f\u3081\u306b\u3082\u7a4d\u6975\u7684\u306b\u5165\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u540c\u3058\u7ae0\u30923\u4eba\u304c\u8aad\u3080\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u3001\u89e3\u91c8\u3092\u88dc\u5b8c\u3057\u3064\u3064\u5177\u4f53\u7684\u306a\u30b3\u30fc\u30c9\u3092\u6bd4\u8f03\u3067\u304d\u3001\u8b70\u8ad6\u306b\u6df1\u307f\u3092\u51fa\u3059\u306e\u306b\u3082\u591a\u5c11\u306f\u8ca2\u732e\u3057\u305f\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<figure class=\"figure-image figure-image-fotolife\" title=\"TypeScript\u3067\u3084\u308b\u306a\u3089\u3053\u3046\u306a\u308a\u305d\u3046\"><span itemscope=\"\" itemtype=\"http:\/\/schema.org\/Photograph\"><img decoding=\"async\" src=\"https:\/\/cdn-ak.f.st-hatena.com\/images\/fotolife\/h\/hatenatech\/20251031\/20251031153007.png\" width=\"1016\" height=\"640\" loading=\"lazy\" title=\"\" class=\"hatena-fotolife\" itemprop=\"image\"\/><\/span><figcaption>TypeScript\u3067\u3084\u308b\u306a\u3089\u3053\u3046\u306a\u308a\u305d\u3046\u3001\u3068\u304b\u8a71\u3059<\/figcaption><\/figure>\n<h2 id=\"\u3084\u3063\u3066\u307f\u3066\">\u3084\u3063\u3066\u307f\u3066<\/h2>\n<p>\u30c9\u30e1\u30a4\u30f3\u99c6\u52d5\u8a2d\u8a08\u306e\u5171\u901a\u8a9e\u5f59\u304c\u3067\u304d\u305f\u306e\u306f\u3082\u3061\u308d\u3093\u3067\u3059\u304c\u3001\u3068\u304f\u306b\u3053\u306e\u672c\u3067\u7d39\u4ecb\u3055\u308c\u3066\u3044\u308b\u95a2\u6570\u7684\u306a\u8003\u3048\u65b9\u3001\u300c\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306e\u4e21\u7aef\u306bIO\u3092\u8ffd\u3044\u51fa\u3059\u300d\u300c\u578b\u306b\u3088\u3063\u3066\u3042\u308a\u3048\u306a\u3044\u72b6\u614b\u3092\u3042\u3089\u304b\u3058\u3081\u6392\u9664\u3059\u308b\uff08Make illegal states unrepresentable\uff09\u300d\u3068\u3044\u3063\u305f\u8003\u3048\u306f\u793e\u5185\u3067\u3082DMMF\u7684\u624b\u6cd5\u3068\u3057\u3066\u8a8d\u77e5\u3055\u308c\u3001\u5b9f\u969b\u306b\u3055\u307e\u3056\u307e\u30c1\u30fc\u30e0\u3067\u306e\u8a2d\u8a08\u3084\u30ec\u30d3\u30e5\u30fc\u306b\u767b\u5834\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u61f8\u6848\u306eGo\u306b\u3064\u3044\u3066\u306f\u3084\u306f\u308a\u76f4\u548c\u578b\u3092\u76f4\u63a5\u7684\u306b\u8868\u73fe\u3059\u308b\u306e\u306f\u96e3\u3057\u304f\u3001\u73fe\u5b9f\u7684\u306b\u306finterface\u3092\u3046\u307e\u3044\u3053\u3068\u4f7f\u3063\u3066\u3044\u304f\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u305d\u308c\u3067\u3082\u5148\u8ff0\u306e\u3088\u3046\u306b\u5171\u901a\u306e\u8a2d\u8a08\u8a9e\u5f59\u304c\u3042\u308b\u3053\u3068\u3067\u3001\u73fe\u5834\u306b\u304a\u3044\u3066\u3082\u8a2d\u8a08\u306e\u8b70\u8ad6\u306f\u30b9\u30e0\u30fc\u30ba\u306b\u9032\u3093\u3067\u3044\u305f\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002\u307e\u305f\u3001TypeScript\u306b\u99b4\u67d3\u307f\u306e\u306a\u3044\u30e1\u30f3\u30d0\u30fc\u3082\u3044\u307e\u3057\u305f\u304c\u3001\u578b\u306b\u3088\u308b\u8868\u73fe\u306b\u304a\u3044\u3066\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u30ec\u30d9\u30eb\u3067\u77e5\u898b\u304c\u5f97\u3089\u308c\u305f\u3001\u3068\u3044\u3046\u611f\u60f3\u304c\u3042\u3063\u305f\u306e\u306f\u4e88\u60f3\u5916\u306e\u53ce\u7a6b\u3067\u3057\u305f\u3002<\/p>\n<p>\u5b9f\u969b\u306b\u8aad\u66f8\u4f1a\u306e\u3055\u306a\u304b\u306b\u65b0\u3057\u304f\u8a2d\u8a08\u3059\u308b\u6a5f\u4f1a\u304c\u3042\u308a\u3001\u3053\u306e\u672c\u306e\u624b\u6cd5\u3092Go\u3067\u63a1\u7528\u3057\u3066\u307f\u305f\u30c1\u30fc\u30e0\u306e <a target=\"_blank\" href=\"http:\/\/blog.hatena.ne.jp\/maku693\/\" class=\"hatena-id-icon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cdn.profile-image.st-hatena.com\/users\/maku693\/profile.png\" width=\"16\" height=\"16\" alt=\"\" class=\"hatena-id-icon\"\/>id:maku693<\/a> \u304b\u3089\u30b3\u30e1\u30f3\u30c8\u3092\u3082\u3089\u3044\u307e\u3057\u305f:<\/p>\n<blockquote>\n<p>\u3061\u3087\u3046\u3069DMMF\u8aad\u66f8\u4f1a\u3068\u524d\u5f8c\u3057\u3066\u3001Go\u3067\u66f8\u304b\u308c\u305f\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u65b0\u6a5f\u80fd\u3092\u624b\u304c\u3051\u308b\u6a5f\u4f1a\u304c\u3042\u308a\u3001\u8aad\u66f8\u4f1a\u3067\u5b66\u3093\u3060\u77e5\u898b\u3092\u6d3b\u304b\u3057\u3066\u958b\u767a\u3092\u9032\u3081\u307e\u3057\u305f\u3002<\/p>\n<p>\u8a00\u8a9e\u6a5f\u80fd\u306e\u9055\u3044\u304b\u3089\u3001\u3053\u306e\u672c\u306e\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306e\u5168\u3066\u3092\u76f4\u63a5Go\u3067\u5b9f\u8df5\u3067\u304d\u305f\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u30b3\u30fc\u30c9\u3092\u66f8\u304d\u59cb\u3081\u308b\u524d\u306b\u30c9\u30e1\u30a4\u30f3\u3092\u4e01\u5be7\u306b\u7406\u89e3\u3059\u308b\u3088\u3046\u306b\u52aa\u3081\u308b\u3053\u3068\u3084\u3001\u578b\u306e\u6d3b\u7528\u30fb\u51e6\u7406\u306e\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u5316\u3068\u3044\u3063\u305f\u8003\u3048\u65b9\u306f\u3001\u8907\u6570\u4eba\u3067\u306e\u5927\u898f\u6a21\u306a\u6a5f\u80fd\u306e\u958b\u767a\u3092\u30b9\u30e0\u30fc\u30ba\u306b\u9032\u3081\u308b\u52a9\u3051\u306b\u306a\u3063\u305f\u3068\u601d\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u632f\u308a\u8fd4\u308a\u3067\u306f\u3001\u30c1\u30fc\u30e0\u30e1\u30f3\u30d0\u30fc\u304b\u3089\u300c\u305d\u308c\u4ee5\u524d\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u6bd4\u3079\u3066\u30c9\u30e1\u30a4\u30f3\u30ed\u30b8\u30c3\u30af\u306e\u898b\u901a\u3057\u304c\u826f\u304f\u306a\u3063\u305f\u300d\u3068\u3044\u3046\u611f\u60f3\u3092\u3082\u3089\u3044\u307e\u3057\u305f\u3002<\/p>\n<p>\u300cGo\u3067\u5177\u4f53\u7684\u306b\u3069\u3046\u3084\u3063\u3066DMMF\u672c\u306e\u30a8\u30c3\u30bb\u30f3\u30b9\u3092\u5b9f\u73fe\u3059\u308b\u304b\u300d\u3068\u3044\u3046\u554f\u984c\u306b\u3064\u3044\u3066\u306f\u3001\u3053\u308c\u304b\u3089\u3082\u63a2\u7a76\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u304c\u3001\u8a00\u8a9e\u306b\u3088\u3089\u306a\u3044\u90e8\u5206\u306b\u95a2\u3057\u3066\u306f\u3001\u81ea\u5206\u306e\u77e5\u8b58\u3068\u3057\u3066\u3059\u3067\u306b\u5f79\u7acb\u3063\u3066\u3044\u307e\u3059\u3057\u3001\u4eca\u5f8c\u306e\u696d\u52d9\u3067\u3082\u7a4d\u6975\u7684\u306b\u6d3b\u7528\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3063\u3066\u3044\u307e\u3059\uff01<\/p>\n<\/blockquote>\n<p>\u3061\u3087\u3046\u3069\u8a18\u4e8b\u3092\u6295\u7a3f\u3059\u308b\u672c\u65e5\uff0810\/31\uff09\u958b\u50ac\u306e <a target=\"_blank\" href=\"https:\/\/developer.hatenastaff.com\/entry\/2025\/10\/08\/153753\">hatena.go #2<\/a> \u3067\u3082\u3001\u5225\u306e\u30c1\u30fc\u30e0\u304b\u3089\u5177\u4f53\u7684\u306a\u77e5\u898b\u3092\u5171\u6709\u3067\u304d\u305d\u3046\u3067\u3059\uff01<\/p>\n<hr\/>\n<p>\u3072\u3068\u3064\u306e\u672c\u3092\u307f\u3093\u306a\u3067\u8aad\u3080\u306e\u3063\u3066\u697d\u3057\u3044\u3067\u3059\u3088\u306d\u3002\u3061\u306a\u307f\u306b\u73fe\u5728\u306f\u300e<a target=\"_blank\" href=\"https:\/\/www.oreilly.co.jp\/books\/9784873118703\/\">\u30c7\u30fc\u30bf\u5fd7\u5411\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30c7\u30b6\u30a4\u30f3<\/a>\u300f\u306e\u8aad\u66f8\u4f1a\u304c\u9032\u3093\u3067\u3044\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<\/div>\n<p><script>(function(d, s, id) {\n  var js, fjs = d.getElementsByTagName(s)[0];\n  if (d.getElementById(id)) return;\n  js = d.createElement(s); js.id = id;\n  js.src = 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