NestJS? ??? ??? ??? ? ??? ???? zod ??

zod? ??? ??? ? ??? ??? ??? ?????? ??? ??????.
NestJS? ?? ?????? ?????.

??

?? ?? ????.

1. ??? ??? ? ??? ???? ???? ??

• NestJS?? ????? ?? ???? ?? ??????
• ?? ??? ????? ?? ??? ???? ??? ?? NestJS???.
• ??? ??? ? ValidationPipe? ???? ???? ??? ??

2. Zod? ??? ??

• ?????? ???? ??
• ?? ???????
• ??? ? ??? ?? ?? ??
? ???? ???
• ?? ? ?? ??? ??

??

class-validator ? class-transformer? NestJS?? ??? ??? ?? ????? ???? 2?? ??????.
?, ????? ??,
? ???? ?? ??? NestJS? ????? ?? ???. ?? ValidationPipe? ?? DTO

? ??? ? ?? ??? ???? ???? ?????.

??? ????? ??? ?? ???/????? ?? ??? ?? ?? ? ??/???????.
??? Zod? ??? ???/????? ???? ???? ???.
?, 1??? ?? 3??? ?????
?? ?? ??? ? ?? ????? ?? ????? ? ?? ?????.

?? ????

??? ??? ?? ?? ??(???? ? ??)???.

??? ??? ??? ? ??? ???

1. ??

npm install class-validator class-transformer

2. ??? ?? ???

// main.ts
....
import { ValidationPipe } from '@nestjs/common';

async function bootstrap() {
....
  // Enable validation globally
  app.useGlobalPipes(new ValidationPipe({
    transform: true, // Automatically transform payloads to DTO instances
    whitelist: true, // Strip unknown properties
    forbidNonWhitelisted: true, // Throw error for unknown properties
  }));
....
}
....

3. DTO(??? ?? ??) ??

import { IsNotEmpty, IsString, IsInt, Min } from "class-validator";
import { Type, Transform } from "class-transformer";

export class CreateUserDto {
    @Transform(({ value }) => value.trim()) // Trim whitespaces
    @IsNotEmpty({ message: "Nama tidak boleh kosong" })
    @IsString({ message: "Nama harus berupa string" })
    @Min(3, { message: "Minimal panjang nama 3 karakter" })
    name: string;

    @Type(() => Number) // Transform input ke tipe Number
    @IsNotEmpty({ message: "Nama tidak boleh kosong" })
    @IsInt({ message: "Umur harus berupa bilangan bulat" })
    @Min(17, { message: "Minimal umur terdaftar 17 tahun" })
    age: number;
}

? ??? ????? ?????.

4. ??? ??

import { Body, Controller, Post } from "@nestjs/common";
import { CreateUserDto } from "./create-user.dto";

@Controller("users")
export class UsersController {
    @Post()
    create(@Body() createUserDto: CreateUserDto) {
        // Pada titik ini data/payload createUserdDto
        // sudah tervalidasi & diubah sesuai definisinya
        // developer bisa langsung eksekusi service
        // atau logic yang lain
    }
}

??

1. ??

npm install zod

2. ?? ?? ??

// user.validaiton.ts
import { z, ZodType } from "zod";

export class UserValidation {
    static readonly CREATE: ZodType = z.object({
        name: z
            .string({ message: "Nama harus berupa string" })
            .nonempty({ message: "Nama tidak boleh kosong" })
            .min(3, "Minimal panjang nama 13 karakter"),
        age: z
            .number({ message: "Umur harus berupa angka" })
            .int({ message: "Umur harus berupa bilangan bulat" })
            .min(17, "Minimal umur terdaftar 17 tahub"),
    });
}

export type TCreateUserPayload = z.infer<typeof UserValidation.CREATE>;

*???: ?? ????? ? ???? ?? ?? ? ????

3. ??? ??

import { Body, Controller, Post } from "@nestjs/common";
import { UserValidation, TCreateUserPayload } from "./user.validation.ts";

@Controller("users")
export class UsersController {
    @Post()
    create(@Body() createUserPayload: TCreateUserPayload) {
        const payload = UserValidation.CREATE.parse(createUserPayload);
        // Pada titik ini data/payload payload
        // sudah tervalidasi & diubah sesuai definisinya
        // developer bisa langsung eksekusi service
        // atau logic yang lain
    }
}

??

?????? Zod? ???? ??? ?????.
??, ???? ? ?? ?? ??? ??? ?? ???? ????.

https://abdulghofurme.github.io/posts/zod-vs-class-validator-n-class-transformer/

? ??? zod ? ??? ??? ??? ? ??? ???? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!