Allows use of decorator and non-decorator based validation. Internally uses validator.js to perform validation. Class-validator works on both browser and node.js platforms.

REST API boilerplate using NodeJS and KOA2, typescript. Logging and JWT as middlewares. TypeORM with class-validator, SQL CRUD. Docker included.

PHP Class Validator using php 8.0 attributes.

Convert class-validator-decorated classes into OpenAPI-compatible JSON Schema. The aim is to provide a best-effort conversion: since some of the class-validator decorators lack a direct JSON Schema counterpart, the conversion is bound to be somewhat opinionated.

Additional validators for class-validator. Contribute to pigulla/class-validator-extended development by creating an account on GitHub.

A simple plugin for class-transformer and class-validator which combines them in a nice and programmer-friendly API. - MichalLytek/class-transformer-validator

Decorator-based property validation for classes. Contribute to typestack/class-validator development by creating an account on GitHub.

July 18, 2021 - import { ClassConstructor, plainToClass } from "class-transformer"; import { validate } from "class-validator"; /** * * Validate the payload will be sending or receiving, make sure the data is suitable * * @param dto The DTO object to validate * @param obj The object recieved from response body * * @example * ```ts * await validatorDto(EmployeeDTO, response.data.employee); * * ``` */ export const validatorDto = async <T extends ClassConstructor<any>>( dto: T, obj: Object ) => { // tranform the literal object to class object const objInstance = plainToClass(dto, obj); // validating and check the errors, throw the errors if exist const errors = await validate(objInstance); // errors is an array of validation errors if (errors.length > 0) { throw new TypeError( `validation failed.

Validation made easy using TypeScript decorators. Contribute to s524797336/class-validator development by creating an account on GitHub.

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Decorator-based property validation for classes. Contribute to typestack/class-validator development by creating an account on GitHub.

Additional decorators for class-validator and class-transformer - Byndyusoft/class-validator-extended

A lightweight library for dynamically validate Angular reactive forms using class-validator library.

Decorator-based property validation for classes. Contribute to typestack/class-validator development by creating an account on GitHub.

NestJSi Class Validator. Contribute to nestjsi/class-validator development by creating an account on GitHub.

Decorator-based property validation for classes with error customization globally - aritradevelops/class-validator-custom-errors

import { Validator, Validate } from 'typescript-class-validator'; import { IsDate, IsNotEmpty, MaxDate, IsEmail, Length } from 'class-validator'; class DataDto { @IsNotEmpty() @IsEmail() email: string; @Length(10, 200) @IsNotEmpty() description: string; @IsDate() @IsNotEmpty() @MaxDate(new Date()) birthDate: Date; } class TestClass { @Validate() methodName(@Validator() data: DataDto) { } @Validate() serverControllerEndpoint(@Validator(DataDto, 'body') req: Request) { } } const instance = new TestClass(); // Will throw class-validator errors on runtime instance.methodName({ birthDate: new Date(), description: '123', email: 'fakemail' }); instance.serverControllerEndpoint({ body: { birthDate: new Date(), description: '123', email: 'fakemail' } });

A validation middleware for AWS http lambda functions based on class-validator and class-transformer.

Class validators similar to class-validator package - devsstudio/class-validator

February 26, 2026 - class-validator · github.com/typestack/class-validator · npm · unpkg · RunKit · Index · Files · Dependencies (Dev, Peer) Badge · Versions · Version 0.15.1 · Published 4 months ago · 5.33 MB · 3 dependencies · MIT license · npm i class-validator ·