Add a Firestore document with nested fields (async)

Add a Firestore document with nested fields (async).

Explore further

For detailed documentation that includes this code sample, see the following:

• Add and update data
• Add data to Cloud Firestore

Code sample

Python

To authenticate to Firestore, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

# Create an initial document to update
frank_ref = db.collection("users").document("frank")
await frank_ref.set(
    {
        "name": "Frank",
        "favorites": {"food": "Pizza", "color": "Blue", "subject": "Recess"},
        "age": 12,
    }
)

# Update age and favorite color
await frank_ref.update({"age": 13, "favorites.color": "Red"})

What's next

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