[SOLVED] How to retrieve attribute from _User class on moralis

I need to retrieve some attributes from _User class on my cloud function, but it always return undefined when i try query to _User class here’s my sample code :
const queryUser = new Moralis.Query("_User");

    // queryUser.equalTo("ethAddress",request.params.ethAddress);

    const queryResult = await queryUser.find();

    logger.info("result 2" + queryResult); 

is any wrong with my code ?

You need to add useMasterkey here when querying in cloud code.
await queryUser.find({ useMasterKey: true })

thanks a million @johnversus , it solves my problem