@kanadi/core/src/middleware/decorator.ts

Multi-Layer CAPTCHA Framework with customizable validators and challenge bundles

import "reflect-metadata";
import type { ValidatorMetadata } from "./types";

export function Validator(metadata: ValidatorMetadata) {
	return <T extends { new (...args: any[]): {} }>(constructor: T) => {
		Reflect.defineMetadata("middleware:metadata", metadata, constructor);
		Reflect.defineMetadata("middleware:registered", true, constructor);
		return constructor;
	};
}

export function getValidatorMetadata(
	target: any,
): ValidatorMetadata | undefined {
	return Reflect.getMetadata("middleware:metadata", target);
}

export function isValidator(target: any): boolean {
	return Reflect.getMetadata("middleware:registered", target) === true;
}