{"id":78,"date":"2020-01-15T14:23:21","date_gmt":"2020-01-15T14:23:21","guid":{"rendered":"https:\/\/oidema-jp.com\/media\/2020-01-15-142321\/"},"modified":"2020-01-15T14:23:21","modified_gmt":"2020-01-15T14:23:21","slug":"2020-01-15-142321","status":"publish","type":"post","link":"https:\/\/oidema-jp.com\/media\/2020-01-15-142321\/","title":{"rendered":"\u3010NestJS\u3011Pipe\u6a5f\u80fd\u306e\u30e1\u30e2"},"content":{"rendered":"<h1 id=\"Pipe\u306e\u5229\u7528\u65b9\u6cd5\u306b\u95a2\u3059\u308b\u30e1\u30e2\">Pipe\u306e\u5229\u7528\u65b9\u6cd5\u306b\u95a2\u3059\u308b\u30e1\u30e2<\/h1>\n<p><span itemscope itemtype=\"http:\/\/schema.org\/Photograph\"><img decoding=\"async\" src=\"https:\/\/cdn-ak.f.st-hatena.com\/images\/fotolife\/k\/keisuke8925gdk\/20200115\/20200115142828.png\" alt=\"f:id:keisuke8925gdk:20200115142828p:plain\" title=\"f:id:keisuke8925gdk:20200115142828p:plain\" class=\"hatena-fotolife\" itemprop=\"image\"><\/span><\/p>\n<ul class=\"table-of-contents\">\n<li><a href=\"#Pipe\u306e\u5229\u7528\u65b9\u6cd5\u306b\u95a2\u3059\u308b\u30e1\u30e2\">Pipe\u306e\u5229\u7528\u65b9\u6cd5\u306b\u95a2\u3059\u308b\u30e1\u30e2<\/a>\n<ul>\n<li><a href=\"#Pipe\u306f2\u3064\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u304c\u3042\u308b\">Pipe\u306f2\u3064\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u304c\u3042\u308b<\/a><\/li>\n<li><a href=\"#Pipe\u3092\u5229\u7528\u3059\u308b\u3068\u3053\u308d\u306fController\">Pipe\u3092\u5229\u7528\u3059\u308b\u3068\u3053\u308d\u306fController<\/a><\/li>\n<li><a href=\"#Pipe\u306etransform\u30e1\u30bd\u30c3\u30c9\u3068\u6c17\u306b\u3059\u308b\uff12\u3064\u306e\u5024\">Pipe\u306etransform\u30e1\u30bd\u30c3\u30c9\u3068\u6c17\u306b\u3059\u308b\uff12\u3064\u306e\u5024<\/a><\/li>\n<li><a href=\"#2\u3064\u306e\u5024\u3068\u306f\">2\u3064\u306e\u5024\u3068\u306f<\/a><\/li>\n<li><a href=\"#\u5143\u304b\u3089\u5229\u7528\u3067\u304d\u308bPipe\u306e\u6a5f\u80fd\">\u5143\u304b\u3089\u5229\u7528\u3067\u304d\u308bPipe\u306e\u6a5f\u80fd<\/a><\/li>\n<li><a href=\"#Pipe\u306e\u30b9\u30b3\u30fc\u30d74\u3064\">Pipe\u306e\u30b9\u30b3\u30fc\u30d74\u3064<\/a>\n<ul>\n<li><a href=\"#param-scope\u306e\u4f8b\">param-scope\u306e\u4f8b<\/a><\/li>\n<li><a href=\"#method-scoped\u306e\u4f8b\">method-scoped\u306e\u4f8b<\/a><\/li>\n<li><a href=\"#global-scoped\u306e\u4f8b\">global-scoped\u306e\u4f8b<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4 id=\"Pipe\u306f2\u3064\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u304c\u3042\u308b\">Pipe\u306f2\u3064\u306e<a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/%A5%E6%A1%BC%A5%B9%A5%B1%A1%BC%A5%B9\">\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/a>\u304c\u3042\u308b<\/h4>\n<ol>\n<li>transformation\uff1a\u30a4\u30f3\u30d7\u30c3\u30c8\u30c7\u30fc\u30bf\u3092\u671b\u307e\u3057\u3044\u5f62\u5f0f\u306b\u5909\u66f4\u3059\u308b<\/li>\n<li>validation\uff1a\u5024\u304c\u6709\u52b9\u304b\u3069\u3046\u304b\u5224\u5b9a\u3057\u3066\u3001\u6709\u52b9\u3067\u3042\u308c\u3070\u5909\u66f4\u3057\u306a\u3044\u307e\u307e\u901a\u3059\u3001\u3082\u3057\u6709\u52b9\u3067\u306a\u3051\u308c\u3070\u30a8\u30af\u30bb\u30d7\u30b7\u30e7\u30f3\u30a8\u30e9\u30fc\u3092\u8fd4\u3059<\/li>\n<\/ol>\n<h4 id=\"Pipe\u3092\u5229\u7528\u3059\u308b\u3068\u3053\u308d\u306fController\">Pipe\u3092\u5229\u7528\u3059\u308b\u3068\u3053\u308d\u306fController<\/h4>\n<ul>\n<li>Pipe\u306f\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u30ec\u30d9\u30eb\u3067\u5229\u7528\u3059\u308b\uff08Patch\u6642\u3001Post\u6642\u306a\u3069\uff09<\/li>\n<\/ul>\n<h4 id=\"Pipe\u306etransform\u30e1\u30bd\u30c3\u30c9\u3068\u6c17\u306b\u3059\u308b\uff12\u3064\u306e\u5024\">Pipe\u306etransform\u30e1\u30bd\u30c3\u30c9\u3068\u6c17\u306b\u3059\u308b\uff12\u3064\u306e\u5024<\/h4>\n<ul>\n<li>transform()\u30e1\u30bd\u30c3\u30c9\u306f2\u3064\u306e\u5024\u3092\u3082\u3064 <\/li>\n<\/ul>\n<h4 id=\"2\u3064\u306e\u5024\u3068\u306f\">2\u3064\u306e\u5024\u3068\u306f<\/h4>\n<ol>\n<li><a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/value\">value<\/a>\uff1a<a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/value\">value<\/a>\u306f\u6d41\u308c\u3066\u304f\u308b\u5024<\/li>\n<li>metadata: metadata\u306f\u305d\u306emetadata<\/li>\n<\/ol>\n<h4 id=\"\u5143\u304b\u3089\u5229\u7528\u3067\u304d\u308bPipe\u306e\u6a5f\u80fd\">\u5143\u304b\u3089\u5229\u7528\u3067\u304d\u308bPipe\u306e\u6a5f\u80fd<\/h4>\n<table>\n<thead>\n<tr>\n<th> \u6a5f\u80fd <\/th>\n<th> \u8aac\u660e <\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td> ValidationPipe <\/td>\n<td>  <\/td>\n<\/tr>\n<tr>\n<td> ParseIntPipe <\/td>\n<td> String\u306e\u5024\u3092\u6570\u5024\u578b\u306b\u5909\u63db\u3057\u307e\u3059 <\/td>\n<\/tr>\n<tr>\n<td> ParseUUIDPipe <\/td>\n<td> UUID\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u304b\u3081\u307e\u3059 <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u203b\u6ce8\u610f<br \/>\n\u3053\u308c\u3089\u306ebuilt-in Pipe\u3092\u5229\u7528\u3059\u308b\u306b\u306f`class-validator\u2019 \u3068 \u2018class-transformer\u2019\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059<\/p>\n<h4 id=\"Pipe\u306e\u30b9\u30b3\u30fc\u30d74\u3064\">Pipe\u306e\u30b9\u30b3\u30fc\u30d74\u3064<\/h4>\n<ul>\n<li>method-scoped<\/li>\n<li>controller-scoped,<\/li>\n<li>global-scoped<\/li>\n<li>param-scoped<\/li>\n<\/ul>\n<h5 id=\"param-scope\u306e\u4f8b\">param-scope\u306e\u4f8b<\/h5>\n<ul>\n<li>Param\u30b9\u30b3\u30fc\u30d7\u306e\u30d1\u30a4\u30d7\u306f\u4e00\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u6642\u306b\u6709\u52b9<\/li>\n<\/ul>\n<pre class=\"code lang-typescript\" data-lang=\"typescript\" data-unlink=\"\"><span class=\"synSpecial\">@Post<\/span><span class=\"synStatement\">()<\/span>\n<span class=\"synStatement\">async<\/span> create<span class=\"synStatement\">(<\/span>\n<span class=\"synSpecial\">@Body<\/span><span class=\"synStatement\">(new<\/span> ValidationPipe<span class=\"synStatement\">())<\/span> createCatDto: CreateCatDto<span class=\"synStatement\">,<\/span>\n<span class=\"synStatement\">)<\/span> <span class=\"synIdentifier\">{<\/span>\n<span class=\"synIdentifier\">this<\/span>.catsService.create<span class=\"synStatement\">(<\/span>createCatDto<span class=\"synStatement\">);<\/span>\n<span class=\"synIdentifier\">}<\/span>\n<\/pre>\n<h5 id=\"method-scoped\u306e\u4f8b\">method-scoped\u306e\u4f8b<\/h5>\n<ul>\n<li>method-scoped\u306e\u5834\u5408\u306f<code>@UsePipes()<\/code>\u3068\u3044\u3046\u8a18\u8f09\u3092\u4f7f\u3044\u307e\u3059<\/li>\n<\/ul>\n<pre class=\"code lang-typescript\" data-lang=\"typescript\" data-unlink=\"\"><span class=\"synSpecial\">@Post<\/span><span class=\"synStatement\">()<\/span>\n<span class=\"synSpecial\">@UsePipes<\/span><span class=\"synStatement\">(new<\/span> ValidationPipe<span class=\"synStatement\">())<\/span>\n<span class=\"synStatement\">async<\/span> create<span class=\"synStatement\">(<\/span><span class=\"synSpecial\">@Body<\/span><span class=\"synStatement\">()<\/span> createCatDto: CreateCatDto<span class=\"synStatement\">)<\/span> <span class=\"synIdentifier\">{<\/span>\n<span class=\"synIdentifier\">this<\/span>.catsService.create<span class=\"synStatement\">(<\/span>createCatDto<span class=\"synStatement\">);<\/span>\n<span class=\"synIdentifier\">}<\/span>\n<\/pre>\n<h5 id=\"global-scoped\u306e\u4f8b\">global-scoped\u306e\u4f8b<\/h5>\n<ul>\n<li>\u3082\u3046\u3053\u3053\u307e\u3067\u304d\u305f\u3089\u3001<code>main.ts<\/code>\u306b\u66f8\u3044\u3066\u3057\u307e\u3044\u307e\u3059<\/li>\n<\/ul>\n<pre class=\"code lang-typescript\" data-lang=\"typescript\" data-unlink=\"\"><span class=\"synStatement\">async<\/span> <span class=\"synIdentifier\">function<\/span> bootstrap<span class=\"synStatement\">()<\/span> <span class=\"synIdentifier\">{<\/span>\n<span class=\"synStatement\">const<\/span> app <span class=\"synStatement\">=<\/span> <span class=\"synStatement\">await<\/span> NestFactory.create<span class=\"synStatement\">(<\/span>AppModule<span class=\"synStatement\">);<\/span>\napp.useGlobalPipes<span class=\"synStatement\">(new<\/span> ValidationPipe<span class=\"synStatement\">());<\/span>\n<span class=\"synStatement\">await<\/span> app.listen<span class=\"synStatement\">(<\/span><span class=\"synConstant\">3000<\/span><span class=\"synStatement\">);<\/span>\n<span class=\"synIdentifier\">}<\/span>\nbootstrap<span class=\"synStatement\">();<\/span>\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Pipe\u306e\u5229\u7528\u65b9\u6cd5\u306b\u95a2\u3059\u308b\u30e1\u30e2 Pipe\u306e\u5229\u7528\u65b9\u6cd5\u306b\u95a2\u3059\u308b\u30e1\u30e2 Pipe\u306f2\u3064\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u304c\u3042\u308b Pipe\u3092\u5229\u7528\u3059\u308b\u3068\u3053\u308d\u306fController Pipe\u306etransform\u30e1\u30bd\u30c3\u30c9\u3068\u6c17\u306b\u3059\u308b\uff12\u3064\u306e\u5024 2\u3064\u306e\u5024\u3068\u306f \u5143 &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"footnotes":""},"categories":[5],"tags":[],"class_list":{"0":"post-78","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-nestjs","7":"entry","8":"nothumb"},"acf":[],"aioseo_notices":[],"mb":[],"mfb_rest_fields":["title","aioseo_notices"],"_links":{"self":[{"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/posts\/78","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/comments?post=78"}],"version-history":[{"count":0,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/posts\/78\/revisions"}],"wp:attachment":[{"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/media?parent=78"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/categories?post=78"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/tags?post=78"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}