Adding multiple documents in cloud functions

问题

I want to add multiple documents in the sampleData collection? Also, there is a serverTimeStamp property on the sampleData, how can I add this as well.

sampleData looks like:

name: String

serverTimeStamp: serverTimeStamp

tags: Array []

exports.newUserSignup = functions.auth.user().onCreate((user) => {

    const p1 = admin.firestore().collection('users').doc(user.uid).collection('score').add({
        gems: 0,
    })
    
    const p2 = admin.firestore().collection('users').doc(user.uid).collection('sampleData').add({
        ...
    });

    return Promise.all([p1, p2]);
})

来源：https://stackoverflow.com/questions/62725967/adding-multiple-documents-in-cloud-functions