export class Person{
    name : string = "";
    age : string = "";
}

function validateParams( params: ( keyof Person)[] ){
    const data = {'name': 'josue'};
    params.forEach(param=>{
       if( !data[param] ){
            console.log('error, missing', param);
        }
    })
}

let properties = Object
                    .getOwnPropertyNames(new Person)
                    .map( e => { return e as keyof Person });

validateParams( [...properties] );