Validation

Validation

Learn how to validate incoming request data using class-validator and DTOs.

Overview

Dwex integrates with class-validator for declarative validation of request data.

Example

import { IsString, IsEmail, MinLength } from "class-validator";

export class CreateUserDto {
	@IsString()
	@MinLength(3)
	name: string;

	@IsEmail()
	email: string;
}

Topics Covered

• DTO validation
• Custom validators
• Validation pipes
• Error messages
• Nested validation