geofirestore querydocumentsnapshot

Using geofirestore, I can query from collection users/{userId}/pros in cloud functions and get resulting documents(doc). Now I want to add a new collection users/{userId}/pros/{proId}/notifs right under each of the document users/{userId}/pros/{proId} that came from the query. So, I wrote like this;

exports.sendNotification = functions.firestore
.document("users/{user}/consumers/{consumer}")
.onCreate(async snapshot => {
try {

 query.get().then(querySnapshot => {
 querySnapshot.forEach(doc => {
    
 await doc.ref.collection('notifs').add({ . . .}); 

 }).catch ((error) =>
            console.log(error));
 

However I keep getting errors TypeError: Cannot read property 'collection' of undefined. What seems to be wrong? Geofiretore queryDocumentSnapshot doesn't seem to have collection() property. Thanks for any help.

There is docs property missing before forEach loop. According to the QuerySnapshot documentation the property is:

An array of all the documents in the QuerySnapshot

So the if you want to loop over the docs it should be:

...
query.get().then(querySnapshot => {
 querySnapshot.docs.forEach(doc => {
...

According to my tests this will work at least directly in node (which is used in cloud function as well)