unable to get document data of onDocumentCreated

i'm trying to convert my firebase cloud functions from 1st Gen to 2nd Gen and i can't get the data out of the snapshot typically referred to as event. There must be a simple fix that i'm missing.

In 1st Gen functions, i used to be able to use snapshot.data(), snapshot.data().email and snapshot.data().userName to get the new document's data. But snapshot.data() in 2nd Gen produces a TypeError:

functions: TypeError: Cannot read properties of undefined (reading 'data')

Here is the code where i'm just trying to tap into the fields when user signs up and a new profile is created.

exports.profileCreation = onDocumentCreated(
  "profiles/{profile}",
  async (snapshot) => {
    const { data } = snapshot;
    console.log("Data: ", data);
    console.log("Snapshot: ", snapshot);
    );
    console.log("Snapshot Data: ", snapshot.data());
  }
);

Below is the screenshot of the snapshot data that i get and the square highlights the section in the data that i'm looking for:

Snapshot:  {
>    specversion: '1.0',
>    type: 'google.cloud.firestore.document.v1.created',
>    source: '//firestore.googleapis.com/projects/projects/demo-project/databases/(default)',
>    id: '2f47ffda-ce71-4aa7-9ad9-626a7fb84c99',
>    subject: 'documents/profiles/Yp9sj71F0cABnr8dRADHapePqJHY',
>    time: '2025-04-12T07:52:09Z',
>    location: 'us-central1',
>    project: 'demo-project',
>    database: '(default)',
>    namespace: '(default)',
>    document: 'profiles/Yp9sj71F0cABnr8dRADHapePqJHY',
>    data: QueryDocumentSnapshot {
>      _fieldsProto: {
>        userName: [Value], //information i'm looking for
>        adminPublish: [Value], //information i'm looking for
>        email: [Value], //information i'm looking for
>        initiatedAt: [Value] //information i'm looking for
>      },
>      _ref: DocumentReference {
>        _firestore: [Firestore],
>        _path: [QualifiedResourcePath],
>        _converter: [Object]
>      },
>      _serializer: Serializer {
>        createReference: [Function (anonymous)],
>        createInteger: [Function (anonymous)],
>        allowUndefined: false
>      },
>      _readTime: undefined,
>      _createTime: Timestamp { _seconds: 1744444329, _nanoseconds: 641001000 },
>      _updateTime: Timestamp { _seconds: 1744444329, _nanoseconds: 641001000 }
>    },
>    params: { profile: 'Yp9sj71F0cABnr8dRADHapePqJHY' }
>  }

How do i easily get access to new document data? What am I missing?

The API changed entirely between gen1 and gen2. The first argument to your handler function is no longer a DocumentSnapshot object. It's now a FirestoreEvent object. See the example in the documentation:

exports.createuser = onDocumentCreated("users/{userId}", (event) => {
    // Get an object representing the document
    // e.g. {'name': 'Marie', 'age': 66}
    const snapshot = event.data;
    if (!snapshot) {
        console.log("No data associated with the event");
        return;
    }
    const data = snapshot.data();

The DocumentSnapshot you're looking for is in the data property of event.