How do you insert a “reference” value into firestore?

Question

I\'m trying to insert a document into a collection. I want the document to have a attribute of type reference to insert into the collection. But every time I in

Answer 1

I was trying to figure this out today and the solution I came to was to use the .doc() to create a doc reference

  firebase.firestore()
    .collection("applications")
    .add({
      property: firebase.firestore().doc(`/properties/${propertyId}`),
      ...
    })

This will store a DocumentReference type on the property field so when reading the data you will be able to access the document as so

  firebase.firestore()
    .collection("applications")
    .doc(applicationId)
    .get()
    .then((application) => {
      application.data().property.get().then((property) => { ... })
    })