Date Decorator ​

The Date decorator is used to apply validations to date properties within classes in TypeScript, ensuring that the data meets specified criteria before being processed or stored.

Properties ​

• before: Date - Specifies the latest date that is considered valid.
• after: Date - Specifies the earliest date that is considered valid.
• format: string - Specifies the expected format of the date string (useful when validating string representations of dates).

Usage ​

To use the Date decorator, simply decorate your class's date properties with the desired constraints.

Basic Example ​

import { ClassValidator, Date } from "rest-data-validator";

@ClassValidator
class Event {
  @Date({
    after: new Date("2020-01-01"),
    before: new Date("2023-01-01"),
  })
  eventDate: Date;
}

In this example, eventDate must fall between January 1st, 2020, and January 1st, 2023.

Validating Date Strings ​

@ClassValidator
class Appointment {
  @Date({ format: "YYYY-MM-DD" })
  date: string;
}

Here, date must be a string that matches the specified format, YYYY-MM-DD.