Mongoose, get string record ID-CodePudding

I am trying to setup a database using Mongoose for MongoDB, using nodejs. Currently when it performs findByID, it returns an object that I cannot seem to parse or turn into a string. I am trying to compare a supplied user id with the returned value as shown below. How can I perform a FindBy.. function and have the result in a string format, so I can perform comparisons? Thanks

        globalTest = doc._id;
        
        //const foundUser = Auth.findById(mongoose.Types.ObjectId(doc._id));
        const foundUser = Auth.findById(mongoose.Types.ObjectId(globalTest));//.lean().exec();
    
        if(globalTest===foundUser){
            console.log('match');
        }else{
            console.log('no match');console.log(foundUser ' vs ' globalTest);              
        }
        console.log('BREAK: ' foundUser._id);//always undefined

And the console output:

Saving: 622f6ed69f5b04b4c82fce74 no match
auth.findOne({ _id: new ObjectId("622f6ed69f5b04b4c82fce74") }) vs 622f6ed69f5b04b4c82fce74
BREAK: undefined

CodePudding user response：

As per your console output foundUser is returning the query, you need to execute it in order the query to run and get the data.

I'm assuming you are using async/await

const foundUser = await Auth.findById(mongoose.Types.ObjectId(globalTest)).lean().exec();

if (globalTest == foundUser._id) {
    console.log('match');
} else {
    console.log('no match')
}

Callback Version

Auth.findById(mongoose.Types.ObjectId(globalTest)).lean().exec((err, doc) => {
    if(err) console.error(err);

    if (globalTest == doc._id) {
        console.log('match');
    } else {
        console.log('no match')
    }

});