typescript decorators

gistfile1.txt

// @experimentalDecorators
let isAuthenticated = false;


function authenticate() {
  return function (target: any, propertyKey: string, descriptor: PropertyDescriptor) {
    const handler = descriptor.value
    descriptor.value = (...args: any[]) => {
      if(isAuthenticated) return handler(...args)
      const value = prompt("login required")
      if(value === 'login') {
        isAuthenticated = true
        handler(...args)
      }
    }
  };
}

class Handler {
  @authenticate()
  static authenticated(req: string) {
    console.log(req)
  }
}

Handler.authenticated("give me some interfaces")