How to perform Joi Validations for a TypeScript Class?

user_3709218 0
Viewed 9632

I'm able to perform Joi Validations for function expressions in node as shown below

export var shippingInfo = Joi.object().keys({
   expectedDeliveryDate:Joi.date().required(),
   isRegisteredCompanyAddress:Joi.number().required(),
   addressLine:Joi.string(),
   country:Joi.string(),
   state:Joi.string(),
   city:Joi.string(),
   zipcode:Joi.string()
});

But the problem is, I recently started working on typescript. So here, I've few classes and I'm supposed to perform the Joi validations as I did in the above function expressions. i.e I want to validate for the below class

export class ShippingInfo {
   expectedDeliveryDate: Date,
   isRegisteredCompanyAddress: number,
   addressLine:string,
   country:string,
   state:string,
   city:string,
   zipcode:string
}

How should I make validations for the above class. Should do validations for class level or it's object level? how?

joi typescript node.js validation javascript
2 Answers

You can use class-from-any, tsdv-joi, class-validator or class-transformer.

Example from class-from-any where we get, convert and validate JSON data as typescript class:

import { FromAny, GetFrom, Validate, isString, notEmpty } from "class-from-any";

const worldJSONData = `{"name": "Earth"}`;

class World extends FromAny {
    @GetFrom("name") @Validate(isString, notEmpty) title: string;
}

const world = new World().from(
    JSON.parse(worldJSONData) as Record<string, unknown>
);
user_46043510
Related