prowler-cloud/prowler

zod-4

Zod 4 schema validation patterns.

소스 보기

사용 방법

  1. 설치 명령을 복사하고 자신의 에이전트 환경에 설치하기 전에 소스 패키지를 확인하세요.
  2. 필요한 도구, 인증 정보, 지원 환경은 원본 문서에서 확인하세요.
  3. 입력과 원하는 산출물을 설명하고 출처와 결과를 대조하세요.
npx skills add https://github.com/prowler-cloud/prowler --skill zod-4

시작 전 확인

  • 설치에는 모델 구독, API 한도, 파일 접근 권한이 포함되지 않습니다.
  • 별점 수와 설치 수는 활동 지표이며 독립적인 품질·보안 검증이 아닙니다.
원본 Skill 문서

원본 저장소의 제목, 예시, 코드, 표, 링크, 이미지를 유지해 표시합니다.

Breaking Changes from Zod 3

typescript
// ❌ Zod 3 (OLD)
z.string().email()
z.string().uuid()
z.string().url()
z.string().nonempty()
z.object({ name: z.string() }).required_error("Required")

// ✅ Zod 4 (NEW)
z.email()
z.uuid()
z.url()
z.string().min(1)
z.object({ name: z.string() }, { error: "Required" })

Basic Schemas

typescript
import { z } from "zod";

// Primitives
const stringSchema = z.string();
const numberSchema = z.number();
const booleanSchema = z.boolean();
const dateSchema = z.date();

// Top-level validators (Zod 4)
const emailSchema = z.email();
const uuidSchema = z.uuid();
const urlSchema = z.url();

// With constraints
const nameSchema = z.string().min(1).max(100);
const ageSchema = z.number().int().positive().max(150);
const priceSchema = z.number().min(0).multipleOf(0.01);

Object Schemas

typescript
const userSchema = z.object({
  id: z.uuid(),
  email: z.email({ error: "Invalid email address" }),
  name: z.string().min(1, { error: "Name is required" }),
  age: z.number().int().positive().optional(),
  role: z.enum(["admin", "user", "guest"]),
  metadata: z.record(z.string(), z.unknown()).optional(),
});

type User = z.infer<typeof userSchema>;

// Parsing
const user = userSchema.parse(data);  // Throws on error
const result = userSchema.safeParse(data);  // Returns { success, data/error }

if (result.success) {
  console.log(result.data);
} else {
  console.log(result.error.issues);
}

Arrays and Records

typescript
// Arrays
const tagsSchema = z.array(z.string()).min(1).max(10);
const numbersSchema = z.array(z.number()).nonempty();

// Records (objects with dynamic keys)
const scoresSchema = z.record(z.string(), z.number());
// { [key: string]: number }

// Tuples
const coordinatesSchema = z.tuple([z.number(), z.number()]);
// [number, number]

Unions and Discriminated Unions

typescript
// Simple union
const stringOrNumber = z.union([z.string(), z.number()]);

// Discriminated union (more efficient)
const resultSchema = z.discriminatedUnion("status", [
  z.object({ status: z.literal("success"), data: z.unknown() }),
  z.object({ status: z.literal("error"), error: z.string() }),
]);

Transformations

typescript
// Transform during parsing
const lowercaseEmail = z.email().transform(email => email.toLowerCase());

// Coercion (convert types)
const numberFromString = z.coerce.number();  // "42" → 42
const dateFromString = z.coerce.date();      // "2024-01-01" → Date

// Preprocessing
const trimmedString = z.preprocess(
  val => typeof val === "string" ? val.trim() : val,
  z.string()
);

Refinements

typescript
const passwordSchema = z.string()
  .min(8)
  .refine(val => /[A-Z]/.test(val), {
    message: "Must contain uppercase letter",
  })
  .refine(val => /[0-9]/.test(val), {
    message: "Must contain number",
  });

// With superRefine for multiple errors
const formSchema = z.object({
  password: z.string(),
  confirmPassword: z.string(),
}).superRefine((data, ctx) => {
  if (data.password !== data.confirmPassword) {
    ctx.addIssue({
      code: z.ZodIssueCode.custom,
      message: "Passwords don't match",
      path: ["confirmPassword"],
    });
  }
});

Optional and Nullable

typescript
// Optional (T | undefined)
z.string().optional()

// Nullable (T | null)
z.string().nullable()

// Both (T | null | undefined)
z.string().nullish()

// Default values
z.string().default("unknown")
z.number().default(() => Math.random())

Error Handling

typescript
// Zod 4: Use 'error' param instead of 'message'
const schema = z.object({
  name: z.string({ error: "Name must be a string" }),
  email: z.email({ error: "Invalid email format" }),
  age: z.number().min(18, { error: "Must be 18 or older" }),
});

// Custom error map
const customSchema = z.string({
  error: (issue) => {
    if (issue.code === "too_small") {
      return "String is too short";
    }
    return "Invalid string";
  },
});

React Hook Form Integration

typescript
import { useForm } from "react-hook-form";
import { zodResolver } from "@hookform/resolvers/zod";

const schema = z.object({
  email: z.email(),
  password: z.string().min(8),
});

type FormData = z.infer<typeof schema>;

function Form() {
  const { register, handleSubmit, formState: { errors } } = useForm<FormData>({
    resolver: zodResolver(schema),
  });

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <input {...register("email")} />
      {errors.email && <span>{errors.email.message}</span>}
    </form>
  );
}

관련 작업