{"id":9559,"date":"2026-03-06T15:14:30","date_gmt":"2026-03-06T06:14:30","guid":{"rendered":"https:\/\/fastcoding.jp\/blog\/?p=9559"},"modified":"2026-03-09T10:13:36","modified_gmt":"2026-03-09T01:13:36","slug":"lightweight-form-zod-server-actions-veevalidate","status":"publish","type":"post","link":"https:\/\/fastcoding.jp\/blog\/all\/frontend\/lightweight-form-zod-server-actions-veevalidate\/","title":{"rendered":"&#8220;\u5165\u529b\u304c\u91cd\u3044\uff01&#8221;\u3092\u89e3\u6d88\u3059\u308b \u2500 Zod \u00d7 Server Actions\u3068VeeValidate\u306b\u3088\u308b\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u5206\u5272\u8a2d\u8a08"},"content":{"rendered":"<div 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class=\"wp-block-heading\">\u5f93\u6765\u306e\u30d5\u30a9\u30fc\u30e0\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3001\u4f55\u304c\u91cd\u3044\u306e\u304b<\/h2>\n\n\n\n<p>\u591a\u304f\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u898b\u304b\u3051\u308b\u306e\u304c\u3001\u300c\u3059\u3079\u3066\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3067\u5b9f\u884c\u3059\u308b\u300d\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002Yup\u3084\u30ab\u30b9\u30bf\u30e0\u30d0\u30ea\u30c7\u30fc\u30bf\u306b\u696d\u52d9\u30eb\u30fc\u30eb\u307e\u3067\u5168\u90e8\u8a70\u3081\u8fbc\u307f\u3001\u30ad\u30fc\u30b9\u30c8\u30ed\u30fc\u30af\u306e\u305f\u3073\u306b\u5168\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u691c\u8a3c\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u4e00\u898b\u300c\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u89aa\u5207\u300d\u306b\u898b\u3048\u307e\u3059\u304c\u3001\u30eb\u30fc\u30eb\u304c\u5897\u3048\u308b\u3068\u3053\u3046\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5165\u529b1\u6587\u5b57\u3054\u3068\u306b\u6570\u5341\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u95a2\u6570\u304c\u8d70\u308a\u3001UI\u30b9\u30ec\u30c3\u30c9\u304c\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b<\/li>\n<li>\u696d\u52d9\u56fa\u6709\u306e\u30eb\u30fc\u30eb\uff08\u91cd\u8907\u30c1\u30a7\u30c3\u30af\u3001\u5728\u5eab\u78ba\u8a8d\u306a\u3069\uff09\u307e\u3067\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u6301\u305f\u305b\u308b\u3068\u3001JS\u30d0\u30f3\u30c9\u30eb\u304c\u80a5\u5927\u5316\u3059\u308b<\/li>\n<li>\u30b5\u30fc\u30d0\u30fc\u5074\u306b\u3082\u540c\u3058\u30eb\u30fc\u30eb\u3092\u66f8\u304f\u5fc5\u8981\u304c\u3042\u308a\u3001\u4e8c\u91cd\u7ba1\u7406\u3067\u30eb\u30fc\u30eb\u306e\u4e0d\u6574\u5408\u304c\u8d77\u304d\u308b<\/li>\n<li>\u30b9\u30c6\u30c3\u30d7\u9593\u306e\u9077\u79fb\u3067\u30d5\u30a9\u30fc\u30e0\u5168\u4f53\u3092\u518d\u691c\u8a3c\u3057\u3001\u4f53\u611f\u901f\u5ea6\u304c\u3055\u3089\u306b\u60aa\u5316\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u79c1\u305f\u3061\u306e\u958b\u767a\u73fe\u5834\u3067\u3082\u3001\u3042\u308b\u4f1a\u54e1\u767b\u9332\u30d5\u30a9\u30fc\u30e0\u3067\u300c\u5165\u529b\u9014\u4e2d\u306b\u30d5\u30ea\u30fc\u30ba\u3059\u308b\u300d\u3068\u3044\u3046\u554f\u3044\u5408\u308f\u305b\u304c\u76f8\u6b21\u304e\u307e\u3057\u305f\u3002\u8abf\u3079\u3066\u307f\u308b\u3068\u30011\u30b9\u30c6\u30c3\u30d7\u306b40\u4ee5\u4e0a\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30eb\u30fc\u30eb\u304c\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u3060\u3051\u3067\u52d5\u3044\u3066\u3044\u305f\u3093\u3067\u3059\u3002<\/p>\n\n\n\n<h2 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\u30b9\u30c6\u30c3\u30d7\u5358\u4f4d\u306e\u90e8\u5206\u9001\u4fe1\u3067\u5dee\u5206\u3060\u3051\u691c\u8a3c<\/h3>\n\n\n\n<p>\u30d5\u30a9\u30fc\u30e0\u5168\u4f53\u3092\u4e00\u62ec\u9001\u4fe1\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u30b9\u30c6\u30c3\u30d7\u3054\u3068\u306b\u300c\u305d\u306e\u30b9\u30c6\u30c3\u30d7\u306e\u5165\u529b\u5024\u3060\u3051\u300d\u3092\u30b5\u30fc\u30d0\u30fc\u3078\u9001\u308a\u307e\u3059\u3002\u691c\u8a3c\u5bfe\u8c61\u304c\u7d5e\u3089\u308c\u308b\u3076\u3093\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u901f\u304f\u3001\u30a8\u30e9\u30fc\u304c\u3042\u3063\u3066\u3082\u8a72\u5f53\u30b9\u30c6\u30c3\u30d7\u5185\u3067\u5373\u5ea7\u306b\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">React\u5b9f\u88c5\uff1aZod \u00d7 Server Actions\uff08Next.js\uff09<\/h2>\n\n\n\n<p>React\uff08Next.js 14\u4ee5\u964d\uff09\u3067\u306f\u3001Zod\u3067\u30b9\u30ad\u30fc\u30de\u3092\u5b9a\u7fa9\u3057\u3001Server Actions\u3067\u30b5\u30fc\u30d0\u30fc\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3059\u308b\u69cb\u6210\u304c\u5f37\u529b\u3067\u3059\u3002\u306a\u304a\u3001\u672c\u8a18\u4e8b\u306e\u30b3\u30fc\u30c9\u4f8b\u306fZod v3\uff08<code>zod@^3.x<\/code>\uff09\u3092\u524d\u63d0\u3068\u3057\u3066\u3044\u307e\u3059\u30022025\u5e748\u6708\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305fZod v4\u3067\u306f\u30a8\u30e9\u30fc\u30ab\u30b9\u30bf\u30de\u30a4\u30baAPI\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001v4\u3092\u4f7f\u3046\u5834\u5408\u306f\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u307e\u305a\u3001\u30b9\u30c6\u30c3\u30d7\u3054\u3068\u306bZod\u30b9\u30ad\u30fc\u30de\u3092\u5206\u5272\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ schemas\/registration.ts\nimport { z } from \"zod\";\n\n\/\/ \u30b9\u30c6\u30c3\u30d71\uff1a\u57fa\u672c\u60c5\u5831\uff08\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u540c\u671f\u30c1\u30a7\u30c3\u30af\u7528\uff09\nexport const step1Schema = z.object({\n  name: z.string().min(1, \"\u540d\u524d\u306f\u5fc5\u9808\u3067\u3059\").max(50),\n  email: z.string().email(\"\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5f62\u5f0f\u304c\u6b63\u3057\u304f\u3042\u308a\u307e\u305b\u3093\"),\n  password: z\n    .string()\n    .min(8, \"8\u6587\u5b57\u4ee5\u4e0a\u3067\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\")\n    .regex(\/[A-Z]\/, \"\u5927\u6587\u5b57\u30921\u6587\u5b57\u4ee5\u4e0a\u542b\u3081\u3066\u304f\u3060\u3055\u3044\")\n    .regex(\/[0-9]\/, \"\u6570\u5b57\u30921\u6587\u5b57\u4ee5\u4e0a\u542b\u3081\u3066\u304f\u3060\u3055\u3044\"),\n});\n\n\/\/ \u30b9\u30c6\u30c3\u30d72\uff1a\u8a73\u7d30\u60c5\u5831\nexport const step2Schema = z.object({\n  company: z.string().min(1, \"\u4f1a\u793e\u540d\u306f\u5fc5\u9808\u3067\u3059\"),\n  phone: z.string().regex(\/^0\\d{9,10}$\/, \"\u96fb\u8a71\u756a\u53f7\u306e\u5f62\u5f0f\u304c\u6b63\u3057\u304f\u3042\u308a\u307e\u305b\u3093\"),\n  postalCode: z.string().regex(\/^\\d{3}-?\\d{4}$\/, \"\u90f5\u4fbf\u756a\u53f7\u306e\u5f62\u5f0f\u304c\u6b63\u3057\u304f\u3042\u308a\u307e\u305b\u3093\"),\n});\n\n\/\/ \u30b9\u30c6\u30c3\u30d73\uff1a\u78ba\u8a8d\uff08\u696d\u52d9\u30ed\u30b8\u30c3\u30af\u306f\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u5b9f\u884c\uff09\nexport const step3Schema = z.object({\n  agreeToTerms: z.literal(true, {\n    errorMap: () => ({ message: \"\u5229\u7528\u898f\u7d04\u3078\u306e\u540c\u610f\u304c\u5fc5\u8981\u3067\u3059\" }),\n  }),\n});<\/code><\/pre>\n\n\n\n<p>\u30dd\u30a4\u30f3\u30c8\u306f\u3001Zod\u30b9\u30ad\u30fc\u30de\u3092\u30b9\u30c6\u30c3\u30d7\u3054\u3068\u306b\u72ec\u7acb\u3055\u305b\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002\u5168\u30d5\u30a3\u30fc\u30eb\u30c9\u30921\u3064\u306e\u5de8\u5927\u306a\u30b9\u30ad\u30fc\u30de\u306b\u307e\u3068\u3081\u308b\u3068\u3001\u3069\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u3069\u306e\u691c\u8a3c\u304c\u8d70\u308b\u304b\u304c\u4e0d\u660e\u77ad\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6b21\u306b\u3001Server Actions\u3067\u30b5\u30fc\u30d0\u30fc\u5074\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ app\/actions\/validateStep.ts\n\"use server\";\n\nimport { step1Schema, step2Schema } from \"@\/schemas\/registration\";\nimport { checkEmailDuplicate } from \"@\/lib\/db\";\n\ntype ValidationResult = {\n  success: boolean;\n  errors?: Record&lt;string, string[]&gt;;\n};\n\nexport async function validateStep1(\n  formData: FormData\n): Promise&lt;ValidationResult&gt; {\n  const data = {\n    name: formData.get(\"name\") as string,\n    email: formData.get(\"email\") as string,\n    password: formData.get(\"password\") as string,\n  };\n\n  \/\/ Zod\u306b\u3088\u308b\u578b\u30c1\u30a7\u30c3\u30af\n  const result = step1Schema.safeParse(data);\n  if (!result.success) {\n    return {\n      success: false,\n      errors: result.error.flatten().fieldErrors,\n    };\n  }\n\n  \/\/ \u696d\u52d9\u30ed\u30b8\u30c3\u30af\uff1a\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u91cd\u8907\u30c1\u30a7\u30c3\u30af\n  const isDuplicate = await checkEmailDuplicate(data.email);\n  if (isDuplicate) {\n    return {\n      success: false,\n      errors: { email: [\"\u3053\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306f\u3059\u3067\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u307e\u3059\"] },\n    };\n  }\n\n  return { success: true };\n}<\/code><\/pre>\n\n\n\n<p>Server Actions\u306e\u5229\u70b9\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u901a\u5e38\u306e\u95a2\u6570\u547c\u3073\u51fa\u3057\u3068\u540c\u3058\u611f\u899a\u3067\u4f7f\u3048\u308b\u3053\u3068\u3002API\u30eb\u30fc\u30c8\u3092\u5225\u9014\u7528\u610f\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u3001\u578b\u3082\u305d\u306e\u307e\u307e\u5171\u6709\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30d5\u30a9\u30fc\u30e0\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u5074\u3067\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3068\u30b5\u30fc\u30d0\u30fc\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u6bb5\u968e\u7684\u306b\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ components\/RegistrationForm.tsx\n\"use client\";\n\nimport { useState, useTransition } from \"react\";\nimport { step1Schema } from \"@\/schemas\/registration\";\nimport { validateStep1 } from \"@\/app\/actions\/validateStep\";\n\nexport function RegistrationForm() {\n  const [currentStep, setCurrentStep] = useState(1);\n  const [errors, setErrors] = useState&lt;Record&lt;string, string[]&gt;&gt;({});\n  const [isPending, startTransition] = useTransition();\n\n  const handleNext = async (formData: FormData) =&gt; {\n    setErrors({});\n\n    \/\/ 1. \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306e\u8efd\u3044\u578b\u30c1\u30a7\u30c3\u30af\uff08\u5373\u5ea7\u306b\u5b9f\u884c\uff09\n    if (currentStep === 1) {\n      const clientResult = step1Schema.safeParse({\n        name: formData.get(\"name\"),\n        email: formData.get(\"email\"),\n        password: formData.get(\"password\"),\n      });\n\n      if (!clientResult.success) {\n        setErrors(clientResult.error.flatten().fieldErrors);\n        return;\n      }\n    }\n\n    \/\/ 2. \u30b5\u30fc\u30d0\u30fc\u5074\u306e\u696d\u52d9\u30ed\u30b8\u30c3\u30af\u30c1\u30a7\u30c3\u30af\uff08\u975e\u540c\u671f\uff09\n    startTransition(async () =&gt; {\n      const serverResult = await validateStep1(formData);\n      if (!serverResult.success &amp;&amp; serverResult.errors) {\n        setErrors(serverResult.errors);\n        return;\n      }\n      setCurrentStep((prev) =&gt; prev + 1);\n    });\n  };\n\n  return (\n    &lt;form action={handleNext}&gt;\n      {currentStep === 1 &amp;&amp; (\n        &lt;fieldset disabled={isPending}&gt;\n          &lt;div&gt;\n            &lt;label htmlFor=\"name\"&gt;\u540d\u524d&lt;\/label&gt;\n            &lt;input id=\"name\" name=\"name\" type=\"text\" \/&gt;\n            {errors.name &amp;&amp; (\n              &lt;p role=\"alert\" className=\"error\"&gt;{errors.name[0]}&lt;\/p&gt;\n            )}\n          &lt;\/div&gt;\n          &lt;div&gt;\n            &lt;label htmlFor=\"email\"&gt;\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9&lt;\/label&gt;\n            &lt;input id=\"email\" name=\"email\" type=\"email\" \/&gt;\n            {errors.email &amp;&amp; (\n              &lt;p role=\"alert\" className=\"error\"&gt;{errors.email[0]}&lt;\/p&gt;\n            )}\n          &lt;\/div&gt;\n          &lt;div&gt;\n            &lt;label htmlFor=\"password\"&gt;\u30d1\u30b9\u30ef\u30fc\u30c9&lt;\/label&gt;\n            &lt;input id=\"password\" name=\"password\" type=\"password\" \/&gt;\n            {errors.password &amp;&amp; (\n              &lt;p role=\"alert\" className=\"error\"&gt;{errors.password[0]}&lt;\/p&gt;\n            )}\n          &lt;\/div&gt;\n          &lt;button type=\"submit\"&gt;\n            {isPending ? \"\u78ba\u8a8d\u4e2d...\" : \"\u6b21\u3078\"}\n          &lt;\/button&gt;\n        &lt;\/fieldset&gt;\n      )}\n    &lt;\/form&gt;\n  );\n}<\/code><\/pre>\n\n\n\n<p><code>useTransition<\/code>\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u554f\u3044\u5408\u308f\u305b\u4e2d\u3082UI\u304c\u30d5\u30ea\u30fc\u30ba\u3057\u307e\u305b\u3093\u3002\u30e6\u30fc\u30b6\u30fc\u306b\u306f\u300c\u78ba\u8a8d\u4e2d&#8230;\u300d\u3068\u8868\u793a\u3057\u3064\u3064\u3001\u5165\u529b\u30d5\u30a3\u30fc\u30eb\u30c9\u3078\u306e\u30d5\u30a9\u30fc\u30ab\u30b9\u3084\u30b9\u30af\u30ed\u30fc\u30eb\u306f\u7dad\u6301\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vue\u5b9f\u88c5\uff1aVeeValidate \u00d7 \u30b5\u30fc\u30d0\u30fc\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3API<\/h2>\n\n\n\n<p>Vue\uff08Nuxt 3\uff09\u3067\u306f\u3001VeeValidate\u3068Zod\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u540c\u3058\u5206\u5272\u6226\u7565\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ composables\/useStepValidation.ts\nimport { toTypedSchema } from \"@vee-validate\/zod\";\nimport { z } from \"zod\";\n\nexport const step1Schema = toTypedSchema(\n  z.object({\n    name: z.string().min(1, \"\u540d\u524d\u306f\u5fc5\u9808\u3067\u3059\").max(50),\n    email: z.string().email(\"\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5f62\u5f0f\u304c\u6b63\u3057\u304f\u3042\u308a\u307e\u305b\u3093\"),\n    password: z\n      .string()\n      .min(8, \"8\u6587\u5b57\u4ee5\u4e0a\u3067\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\")\n      .regex(\/[A-Z]\/, \"\u5927\u6587\u5b57\u30921\u6587\u5b57\u4ee5\u4e0a\u542b\u3081\u3066\u304f\u3060\u3055\u3044\"),\n  })\n);\n\nexport const step2Schema = toTypedSchema(\n  z.object({\n    company: z.string().min(1, \"\u4f1a\u793e\u540d\u306f\u5fc5\u9808\u3067\u3059\"),\n    phone: z.string().regex(\/^0\\d{9,10}$\/, \"\u96fb\u8a71\u756a\u53f7\u306e\u5f62\u5f0f\u304c\u6b63\u3057\u304f\u3042\u308a\u307e\u305b\u3093\"),\n  })\n);<\/code><\/pre>\n\n\n\n<p>VeeValidate\u306e<code>toTypedSchema<\/code>\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001Zod\u30b9\u30ad\u30fc\u30de\u3092\u305d\u306e\u307e\u307eVeeValidate\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30eb\u30fc\u30eb\u3068\u3057\u3066\u5229\u7528\u3067\u304d\u307e\u3059\u3002React\u7248\u3068\u30b9\u30ad\u30fc\u30de\u5b9a\u7fa9\u3092\u5171\u6709\u3067\u304d\u308b\u306e\u3082Zod\u306e\u5f37\u307f\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;!-- components\/RegistrationWizard.vue --&gt;\n&lt;script setup lang=\"ts\"&gt;\nimport { useForm, Field } from \"vee-validate\";\nimport { ref, computed } from \"vue\";\nimport { step1Schema, step2Schema } from \"~\/composables\/useStepValidation\";\n\nconst currentStep = ref(1);\nconst serverErrors = ref&lt;Record&lt;string, string&gt;&gt;({});\nconst isSubmitting = ref(false);\n\nconst schemas = [step1Schema, step2Schema];\n\nconst { handleSubmit, errors, resetForm } = useForm({\n  validationSchema: computed(() =&gt; schemas[currentStep.value - 1]),\n});\n\nasync function validateOnServer(values: Record&lt;string, unknown&gt;) {\n  isSubmitting.value = true;\n  serverErrors.value = {};\n\n  try {\n    const { data, error } = await useFetch(\"\/api\/validate-step\", {\n      method: \"POST\",\n      body: { step: currentStep.value, values },\n    });\n\n    if (error.value || !data.value?.success) {\n      serverErrors.value = data.value?.errors ?? {};\n      return false;\n    }\n    return true;\n  } finally {\n    isSubmitting.value = false;\n  }\n}\n\nconst onNext = handleSubmit(async (values) =&gt; {\n  \/\/ \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u691c\u8a3c\u306fVeeValidate\u304c\u81ea\u52d5\u5b9f\u884c\u6e08\u307f\n  \/\/ \u30b5\u30fc\u30d0\u30fc\u691c\u8a3c\u3092\u8ffd\u52a0\u5b9f\u884c\n  const isValid = await validateOnServer(values);\n  if (isValid) {\n    currentStep.value++;\n  }\n});\n&lt;\/script&gt;\n\n&lt;template&gt;\n  &lt;form @submit.prevent=\"onNext\"&gt;\n    &lt;fieldset :disabled=\"isSubmitting\"&gt;\n      &lt;template v-if=\"currentStep === 1\"&gt;\n        &lt;div&gt;\n          &lt;label for=\"name\"&gt;\u540d\u524d&lt;\/label&gt;\n          &lt;Field id=\"name\" name=\"name\" type=\"text\" \/&gt;\n          &lt;p v-if=\"errors.name || serverErrors.name\" role=\"alert\" class=\"error\"&gt;\n            {{ errors.name || serverErrors.name }}\n          &lt;\/p&gt;\n        &lt;\/div&gt;\n        &lt;div&gt;\n          &lt;label for=\"email\"&gt;\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9&lt;\/label&gt;\n          &lt;Field id=\"email\" name=\"email\" type=\"email\" \/&gt;\n          &lt;p v-if=\"errors.email || serverErrors.email\" role=\"alert\" class=\"error\"&gt;\n            {{ errors.email || serverErrors.email }}\n          &lt;\/p&gt;\n        &lt;\/div&gt;\n        &lt;div&gt;\n          &lt;label for=\"password\"&gt;\u30d1\u30b9\u30ef\u30fc\u30c9&lt;\/label&gt;\n          &lt;Field id=\"password\" name=\"password\" type=\"password\" \/&gt;\n          &lt;p v-if=\"errors.password || serverErrors.password\" role=\"alert\" class=\"error\"&gt;\n            {{ errors.password || serverErrors.password }}\n          &lt;\/p&gt;\n        &lt;\/div&gt;\n      &lt;\/template&gt;\n\n      &lt;button type=\"submit\"&gt;\n        {{ isSubmitting ? '\u78ba\u8a8d\u4e2d...' : '\u6b21\u3078' }}\n      &lt;\/button&gt;\n    &lt;\/fieldset&gt;\n  &lt;\/form&gt;\n&lt;\/template&gt;<\/code><\/pre>\n\n\n\n<p>Vue\u7248\u306e\u30dd\u30a4\u30f3\u30c8\u306f\u3001<code>validationSchema<\/code>\u3092<code>computed<\/code>\u3067\u5207\u308a\u66ff\u3048\u3066\u3044\u308b\u70b9\u3067\u3059\u3002\u30b9\u30c6\u30c3\u30d7\u304c\u9032\u3080\u305f\u3073\u306b\u691c\u8a3c\u5bfe\u8c61\u306e\u30b9\u30ad\u30fc\u30de\u304c\u81ea\u52d5\u3067\u5207\u308a\u66ff\u308f\u308a\u3001\u4e0d\u8981\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u691c\u8a3c\u304c\u8d70\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30a8\u30e9\u30fc\u8868\u793a\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u8a2d\u8a08<\/h2>\n\n\n\n<p>\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u5206\u5272\u3068\u540c\u3058\u304f\u3089\u3044\u91cd\u8981\u306a\u306e\u304c\u3001\u300c\u3044\u3064\u30a8\u30e9\u30fc\u3092\u898b\u305b\u308b\u304b\u300d\u3067\u3059\u3002\u3053\u3053\u3092\u9593\u9055\u3048\u308b\u3068\u3001\u6280\u8853\u7684\u306b\u306f\u8efd\u304f\u306a\u3063\u3066\u3082\u4f53\u611f\u306f\u91cd\u3044\u307e\u307e\u3001\u3068\u3044\u3046\u3053\u3068\u304c\u8d77\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5b9f\u52d9\u3067\u52b9\u679c\u304c\u3042\u3063\u305f\u8a2d\u8a08\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table>\n<thead>\n<tr><th>\u30bf\u30a4\u30df\u30f3\u30b0<\/th><th>\u9069\u7528\u3059\u308b\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3<\/th><th>\u7406\u7531<\/th><\/tr>\n<\/thead>\n<tbody>\n<tr><td>\u5165\u529b\u4e2d\uff08onChange\uff09<\/td><td>\u5f62\u5f0f\u30c1\u30a7\u30c3\u30af\u306e\u307f\uff08\u30e1\u30fc\u30eb\u5f62\u5f0f\u3001\u6587\u5b57\u6570\uff09<\/td><td>\u5373\u5ea7\u306b\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u304c\u6b32\u3057\u3044\u9805\u76ee\u306b\u9650\u5b9a<\/td><\/tr>\n<tr><td>\u30d5\u30a9\u30fc\u30ab\u30b9\u30a2\u30a6\u30c8\uff08onBlur\uff09<\/td><td>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306e\u5168\u30eb\u30fc\u30eb<\/td><td>\u5165\u529b\u3092\u90aa\u9b54\u3057\u306a\u3044\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u691c\u8a3c<\/td><\/tr>\n<tr><td>\u9001\u4fe1\u6642\uff08onSubmit\uff09<\/td><td>\u30b5\u30fc\u30d0\u30fc\u5074\u306e\u696d\u52d9\u30ed\u30b8\u30c3\u30af<\/td><td>DB\u554f\u3044\u5408\u308f\u305b\u304c\u5fc5\u8981\u306a\u3082\u306e\u306f\u307e\u3068\u3081\u3066\u5b9f\u884c<\/td><\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p>\u3088\u304f\u3042\u308b\u5931\u6557\u306f\u3001\u5168\u30eb\u30fc\u30eb\u3092onChange\u3067\u8d70\u3089\u305b\u308b\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304c\u307e\u3060\u5165\u529b\u9014\u4e2d\u306a\u306e\u306b\u300c\u5f62\u5f0f\u304c\u6b63\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u300d\u3068\u8868\u793a\u3055\u308c\u3066\u3001\u5165\u529b\u3059\u308b\u6c17\u3092\u524a\u3044\u3067\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001\u30a8\u30e9\u30fc\u306e\u30cf\u30a4\u30e9\u30a4\u30c8\u306b\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u3046\u5834\u5408\u306f\u3001<code>prefers-reduced-motion<\/code>\u3078\u306e\u914d\u616e\u3082\u5fd8\u308c\u305a\u306b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/* \u30a8\u30e9\u30fc\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30cf\u30a4\u30e9\u30a4\u30c8 *\/\n.field-error {\n  border-color: #dc2626;\n  animation: shake 0.3s ease-in-out;\n}\n\n@media (prefers-reduced-motion: reduce) {\n  .field-error {\n    animation: none;\n    outline: 2px solid #dc2626;\n  }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b9\u30c6\u30c3\u30d7\u623b\u308a\u3067\u5165\u529b\u5024\u3092\u6d88\u3055\u306a\u3044\u8a2d\u8a08<\/h2>\n\n\n\n<p>\u30a6\u30a3\u30b6\u30fc\u30c9\u5f62\u5f0f\u3067\u983b\u7e41\u306b\u5831\u544a\u3055\u308c\u308b\u30d0\u30b0\u304c\u300c\u524d\u306e\u30b9\u30c6\u30c3\u30d7\u306b\u623b\u3063\u305f\u3089\u5165\u529b\u304c\u6d88\u3048\u3066\u3044\u305f\u300d\u3067\u3059\u3002<\/p>\n\n\n\n<p>React\u7248\u3067\u306fuseRef\u3084Context\u3067\u5404\u30b9\u30c6\u30c3\u30d7\u306e\u5024\u3092\u4fdd\u6301\u3057\u3001Vue\u7248\u3067\u306fkeep-alive\u3067\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u72b6\u614b\u3092\u7dad\u6301\u3059\u308b\u65b9\u6cd5\u304c\u5b9a\u756a\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ React\uff1a\u30b9\u30c6\u30c3\u30d7\u9593\u306e\u5024\u3092\u4fdd\u6301\u3059\u308bContext\nconst WizardContext = createContext&lt;{\n  stepData: Record&lt;number, Record&lt;string, unknown&gt;&gt;;\n  updateStep: (step: number, data: Record&lt;string, unknown&gt;) =&gt; void;\n}&gt;(null!);\n\nexport function WizardProvider({ children }: { children: React.ReactNode }) {\n  const [stepData, setStepData] = useState&lt;\n    Record&lt;number, Record&lt;string, unknown&gt;&gt;\n  &gt;({});\n\n  const updateStep = (step: number, data: Record&lt;string, unknown&gt;) =&gt; {\n    setStepData((prev) =&gt; ({ ...prev, [step]: data }));\n  };\n\n  return (\n    &lt;WizardContext.Provider value={{ stepData, updateStep }}&gt;\n      {children}\n    &lt;\/WizardContext.Provider&gt;\n  );\n}<\/code><\/pre>\n\n\n\n<p>\u30b9\u30c6\u30c3\u30d7\u3092\u9032\u3081\u308b\u524d\u306b<code>updateStep<\/code>\u3067\u73fe\u5728\u306e\u5165\u529b\u5024\u3092\u4fdd\u5b58\u3057\u3001\u623b\u3063\u305f\u3068\u304d\u306b\u5fa9\u5143\u3059\u308b\u3002\u5358\u7d14\u3067\u3059\u304c\u3001\u3053\u308c\u3060\u3051\u3067\u96e2\u8131\u7387\u304c\u76ee\u306b\u898b\u3048\u3066\u6539\u5584\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u5f97\u3089\u308c\u305f\u52b9\u679c<\/h2>\n\n\n\n<p>\u3042\u308bBtoB SaaS\u306e\u5be9\u67fb\u7533\u8fbc\u30d5\u30a9\u30fc\u30e0\uff085\u30b9\u30c6\u30c3\u30d7\u3001\u5408\u8a0835\u30d5\u30a3\u30fc\u30eb\u30c9\uff09\u306b\u3053\u306e\u5206\u5272\u8a2d\u8a08\u3092\u5c0e\u5165\u3057\u305f\u3068\u304d\u306e\u7d50\u679c\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table>\n<thead>\n<tr><th>\u6307\u6a19<\/th><th>\u5c0e\u5165\u524d<\/th><th>\u5c0e\u5165\u5f8c<\/th><th>\u6539\u5584\u7387<\/th><\/tr>\n<\/thead>\n<tbody>\n<tr><td>\u30ad\u30fc\u5165\u529b\u301c\u30a8\u30e9\u30fc\u8868\u793a\u306e\u30ec\u30a4\u30c6\u30f3\u30b7<\/td><td>180\u301c350ms<\/td><td>8\u301c25ms<\/td><td>\u7d0493%\u77ed\u7e2e<\/td><\/tr>\n<tr><td>\u30d5\u30a9\u30fc\u30e0\u95a2\u9023\u306eJS\u30d0\u30f3\u30c9\u30eb\u30b5\u30a4\u30ba<\/td><td>142KB\uff08gzip\uff09<\/td><td>47KB\uff08gzip\uff09<\/td><td>\u7d0467%\u524a\u6e1b<\/td><\/tr>\n<tr><td>\u30d5\u30a9\u30fc\u30e0\u5b8c\u4e86\u7387<\/td><td>38%<\/td><td>61%<\/td><td>+23pt<\/td><\/tr>\n<tr><td>\u9014\u4e2d\u96e2\u8131\u304c\u6700\u3082\u591a\u3044\u30b9\u30c6\u30c3\u30d7<\/td><td>\u30b9\u30c6\u30c3\u30d72\uff08\u5165\u529b\u4e2d\u30d5\u30ea\u30fc\u30ba\uff09<\/td><td>\u30b9\u30c6\u30c3\u30d74\uff08\u78ba\u8a8d\u753b\u9762\u3067\u306e\u96e2\u8131\uff09<\/td><td>\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u79fb\u52d5<\/td><\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p>\u7279\u306b\u6ce8\u76ee\u3057\u305f\u3044\u306e\u306f\u30d0\u30f3\u30c9\u30eb\u30b5\u30a4\u30ba\u306e\u5909\u5316\u3067\u3059\u3002\u696d\u52d9\u30ed\u30b8\u30c3\u30af\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u3092\u30b5\u30fc\u30d0\u30fc\u306b\u79fb\u3057\u305f\u3053\u3068\u3067\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u914d\u4fe1\u3059\u308bJS\u91cf\u304c\u5927\u5e45\u306b\u6e1b\u308a\u307e\u3057\u305f\u3002\u30e2\u30d0\u30a4\u30eb\u56de\u7dda\u3067\u306e\u30d5\u30a9\u30fc\u30e0\u8868\u793a\u901f\u5ea6\u306b\u3082\u597d\u5f71\u97ff\u304c\u51fa\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u9014\u4e2d\u96e2\u8131\u306e\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u304c\u300c\u30b9\u30c6\u30c3\u30d72\u306e\u30d5\u30ea\u30fc\u30ba\u300d\u304b\u3089\u300c\u30b9\u30c6\u30c3\u30d74\u306e\u78ba\u8a8d\u753b\u9762\u300d\u306b\u79fb\u3063\u305f\u306e\u3082\u8208\u5473\u6df1\u3044\u7d50\u679c\u3067\u3057\u305f\u3002\u6280\u8853\u7684\u306a\u554f\u984c\u304c\u89e3\u6d88\u3055\u308c\u305f\u3053\u3068\u3067\u3001UX\u3084\u30b3\u30d4\u30fc\u30e9\u30a4\u30c6\u30a3\u30f3\u30b0\u306a\u3069\u672c\u6765\u53d6\u308a\u7d44\u3080\u3079\u304d\u8ab2\u984c\u306b\u30d5\u30a9\u30fc\u30ab\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u308f\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5c0e\u5165\u6642\u306b\u6c17\u3092\u3064\u3051\u305f\u3044\u30dd\u30a4\u30f3\u30c8<\/h2>\n\n\n\n<p>\u3053\u306e\u8a2d\u8a08\u3092\u73fe\u5834\u306b\u6301\u3061\u8fbc\u3080\u969b\u3001\u3044\u304f\u3064\u304b\u30cf\u30de\u308a\u3084\u3059\u3044\u30dd\u30a4\u30f3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b5\u30fc\u30d0\u30fc\u3068\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30eb\u30fc\u30eb\u4e0d\u6574\u5408<\/h3>\n\n\n\n<p>Zod\u30b9\u30ad\u30fc\u30de\u3092\u30b5\u30fc\u30d0\u30fc\u30fb\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u9593\u3067\u5171\u6709\u3059\u308c\u3070\u3001\u578b\u30ec\u30d9\u30eb\u3067\u306e\u4e0d\u6574\u5408\u306f\u9632\u3052\u307e\u3059\u3002\u305f\u3060\u3057\u300c\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u91cd\u8907\u30c1\u30a7\u30c3\u30af\u306f\u30b5\u30fc\u30d0\u30fc\u3060\u3051\u300d\u306e\u3088\u3046\u306b\u3001\u7247\u65b9\u306b\u3057\u304b\u5b58\u5728\u3057\u306a\u3044\u30eb\u30fc\u30eb\u306f\u660e\u793a\u7684\u306b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u3057\u3066\u304a\u304f\u3079\u304d\u3067\u3059\u3002\u3069\u306e\u30eb\u30fc\u30eb\u304c\u3069\u3053\u3067\u5b9f\u884c\u3055\u308c\u308b\u304b\u306e\u4e00\u89a7\u8868\u3092\u4f5c\u3063\u3066\u304a\u304f\u3068\u3001\u5f8c\u4efb\u306e\u958b\u767a\u8005\u304c\u8ff7\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e0d\u5b89\u5b9a\u306a\u56de\u7dda\u3067\u306e\u30b5\u30fc\u30d0\u30fc\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3UX<\/h3>\n\n\n\n<p>\u30e2\u30d0\u30a4\u30eb\u74b0\u5883\u3084\u793e\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u4e0d\u5b89\u5b9a\u306a\u5834\u5408\u3001\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u554f\u3044\u5408\u308f\u305b\u304c\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6642\u306e\u30ea\u30c8\u30e9\u30a4UI\u3068\u3001\u30aa\u30d5\u30e9\u30a4\u30f3\u6642\u306e\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\uff08\u300c\u63a5\u7d9a\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u300d\u30e1\u30c3\u30bb\u30fc\u30b8\uff09\u306f\u5fc5\u305a\u7528\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30e2\u30d0\u30a4\u30ebIME\u3068\u306e\u76f8\u6027<\/h3>\n\n\n\n<p>\u65e5\u672c\u8a9e\u5165\u529b\u306eIME\u5909\u63db\u4e2d\u306bonChange\u304c\u767a\u706b\u3059\u308b\u3068\u3001\u5909\u63db\u78ba\u5b9a\u524d\u306b\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u8d70\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<code>compositionstart<\/code>\/<code>compositionend<\/code>\u30a4\u30d9\u30f3\u30c8\u3092\u76e3\u8996\u3057\u3066\u3001\u5909\u63db\u4e2d\u306f\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u30b9\u30ad\u30c3\u30d7\u3059\u308b\u51e6\u7406\u3092\u5165\u308c\u3066\u304a\u304f\u3068\u5b89\u5168\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u30d5\u30a9\u30fc\u30e0\u306e\u300c\u91cd\u3055\u300d\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u306e\u914d\u7f6e\u30df\u30b9\u304b\u3089\u751f\u307e\u308c\u307e\u3059\u3002\u3059\u3079\u3066\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u8a70\u3081\u8fbc\u3080\u5f93\u6765\u306e\u3084\u308a\u65b9\u304b\u3089\u3001\u300c\u8efd\u3044\u578b\u30c1\u30a7\u30c3\u30af\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3001\u696d\u52d9\u30ed\u30b8\u30c3\u30af\u306f\u30b5\u30fc\u30d0\u30fc\u300d\u3068\u3044\u3046\u5206\u5272\u8a2d\u8a08\u306b\u5207\u308a\u66ff\u3048\u308b\u3060\u3051\u3067\u3001\u5165\u529b\u4f53\u9a13\u306f\u5287\u7684\u306b\u6539\u5584\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306e\u5185\u5bb9\u3092\u632f\u308a\u8fd4\u308b\u3068\u3001\u62bc\u3055\u3048\u3066\u304a\u304d\u305f\u3044\u306e\u306f\u6b21\u306e3\u70b9\u3067\u3059\u3002<\/p>\n\n\n\n<ul 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