Simple express class validator ✅

✨ Npm: https://www.npmjs.com/package/validation-dto-lib

Install

 npm i validation-dto-lib

Simple example

Create your dto

• I created your dto using the class validator normally. Just add a constructor and extends DtoBase like the example below

import { IsString } from "class-validator";
import validator from "validation-dto-lib";

class YourDto extends validator.DtoBase {
  @IsString()
  login: string;
  @IsString()
  password: string;
  
 constructor({ name, password }) {
    super();
    this.name = name;
    this.password = password;
 }
}

Create your router

Validation Body

• Import the validation dto lib in your route's directory. Once you have imported the lib use the ValidationObject method to validate your DTO class with class validotor

  import UserDto from "./dto/user-dto.ts";
  import validator from "validation-dto-lib";

  app.post(
    "/login",
    validator.ValidationObject(UserDto, "BODY"),
    UserController.execute
  );

Validation Param

• Import the validation dto lib in your route's directory. Once you have imported the lib use the ValidationObject method to validate your DTO class with class validotor

  import UserDto from "./dto/user-dto.ts";
  import validator from "validation-dto-lib";

  app.post(
    "/login",
    validator.ValidationObject(UserDto, "PARAM"),
    UserController.execute
  );

Validation Query

• Import the validation dto lib in your route's directory. Once you have imported the lib use the ValidationObject method to validate your DTO class with class validotor

  import UserDto from "./dto/user-dto.ts";
  import validator from "validation-dto-lib";

  app.post(
    "/login",
    validator.ValidationObject(UserDto, "QUERY"),
    UserController.execute
  );