Custom Public Decorator instead of nestjs

public-api.decorator.ts

import { SetMetadata } from '@nestjs/common';

export const IS_PUBLIC_KEY = 'isPublic';
export const Public0 = () => SetMetadata(IS_PUBLIC_KEY, true); // nestjs way


export const reflectObj = {};
// custome way
export function Public() {
  return function (
    target: any,
    methodName: string,
    descriptor: PropertyDescriptor,
  ) {
    console.log('Public!', target, descriptor);
    const className = target.constructor.name;
    console.log(`Class name: ${className}`);
    console.log(`Method name: ${methodName}`);
    
    // defineMetadata can be used as well
    reflectObj[className] = {};
    reflectObj[className][methodName] = true;
  };
}

How to access in the jwt guard:

const className = context.getClass().name;
const methodName = context.getHandler().name;
console.log(context.getClass().name, context.getHandler().name);

const isPublicObj = reflectObj[className][methodName];

// if you used defineMetadata
const isPublicReflect = Reflect.getMetadata(
  IS_PUBLIC_KEY,
  context.getClass(),
);