nest-class-validator-decorator

A custom decorator that uses the class-transformer and class-validator npm packages under the hood to deserialize method response data and validate it according to a supplied "class-validator" class.

Getting started

Add the decorator as a dependency to your project npm install -S nest-class-validator-decorator or yarn add -S nest class-validator-decorator.

You can now import the decorator into your code like so:

import {ValidateResponse} from "nest-class-validator-decorator"

...

@ValidateResponse(YourSchema)
public yourMethod() {
    // Your logic...
}

Any JSON returned from "yourMethod" will now be validated according to "YourSchema".

Options

As a secondary param you can add an "options" object containing ValidatorOptions from "class-validator".