@akibrk/validator

Validator

Validate typescript based on schema, class models or decorators!

Release Notes

Read here

Usage

There are three main strategies for validation currently available in this library,

1. Schema Based
2. Class Decorator Based
3. Class Model Based

---

1. Schema Based

import { ValidatorSchema, Type, ValidationError, validate } from '@akibrk/validator';

const registerForm: ValidatorSchema = {
  username: {
    type: Type.string,
    minLength: 4,
    maxLength: 50,
  },
  password: {
    type: Type.string,
    minLength: 6,
  },
  email: {
    type: Type.email,
    maxLength: 100,
  },
};

const formData: any = {
  username: 'akibrk',
  password: '123456',
  email: 'me@[e-mail]',
};

validate(formData, registerForm);

2. Decorator Based

Before using decorators please check your ts.config file to see if the decorator is enabled under compiler options "experimentalDecorators": true

As of May,22 it's still in experimental flag.

Limitations: You cannot apply multiple decorator to same property at the moment, I will try to get that working next.

import { between, isEmail, required } from '@akibrk/validator';
class CaseClass {
  @between(1, 122.33)
  public check: number;

  @isEmail()
  public email: string;

  @required()
  public acceptTerms: boolean;

  constructor() {
    this.check = AMOUNT;
    this.email = '[e-mail]';
    this.acceptTerms = true;
  }
}

Available decorators

• required
• isEmail
• between
• minLength
• maxLength
• length
• isMobile

---

3. Class Model/ Interface

import { Validator } from '@akibrk/validator';

class Login {
  public email: string = '';
  public password: string = '';
}

// Or

interface ILogin {
  email: string;
  password: string;
}

const loginValidator = new Validator<Login>({
  email: {
    type: Type.string,
    required: true,
  },
  password: {
    type: Type.string,
  },
});

loginValidator.validate({
  email: 'null',
});