firebasil

A modern async Firebase client.

Features

Auth

The AuthClient async context manager provides access to auth routines. Every method returns a typed object with the information provided by the Firebase auth REST API.

from firebasil.auth import AuthClient


async with AuthClient(api_key=...) as auth_client:
    # Sign up a new user
    signed_up = await auth_client.sign_up("kevin@k2bd.dev", "password1")

    # Sign in as a user
    signed_in = await auth_client.sign_in_with_password(
        email="kevin@k2bd.dev",
        password="password1",
    )

    updated = await auth_client.update_profile(
        signed_in.id_token,
        display_name="Kevin Duff",
    )

The AuthClient class will use production GCP endpoints and routes for auth by default, unless the FIREBASE_AUTH_EMULATOR_HOST environment variable is set, in which case the defaults change to the emulator. This can be overridden in both cases by passing in identity_toolkit_url, secure_token_url, and use_emulator_routes explicitly.

Common error codes are promoted to exception classes, so these can be directly handled in code without having to parse the error response body.

Realtime Database (RTDB)

The Rtdb async context manager yields the root node of the database.

from firebasil.rtdb import Rtdb


async with Rtdb(database_url=...) as root_node:

    # Set the database state from the root node
    await rtdb_root.set({"scores": {"a": 5, "b": 4, "c": 3, "d": 2, "e": 1}})

    # Build a child node that references the 'scores' path
    child_node: RtdbNode = rtdb_root / "scores"

    # Get the value of the further 'c' child
    c_value = await (child_node / "c").get()
    assert c_value == 3

    # Query for the last two entries at that location, ordered by key
    query_value = await child_node.order_by_key().limit_to_last(2).get()
    assert query_value == {"d": 2, "e": 1}

    # Watch a node for live changes
    async with child_node.events() as event_queue:
        event: RtdbEvent = await event_queue.get()
        ...
        # Somewhere, 'b' gets set to 7
        # RtdbEvent(event=EventType.put, path='/b', data=7)

Either a user ID token, or a machine credential access token, can be provided Rtdb through the id_token or access_token arguments, which will be used to pass the database's auth.

A local emulator URL may be passed to Rtdb to test against the Firebase Emulator Suite.

Firestore Database

Still in planning!

Storage

Still in planning!

Developing on this Project

Installation

Install Poetry and poetry install the project

Install the Firebase CLI. Make sure the emulators are installed and configured with firebase init emulators.

Useful Commands

Note: if Poetry is managing a virtual environment for you, you may need to use poetry run poe instead of poe

• poe autoformat - Autoformat code
• poe lint - Linting
• poe test - Run tests
• poe docs - Build docs

Release

Release a new version by manually running the release action on GitHub with a 'major', 'minor', or 'patch' version bump selected. This will create an push a new semver tag of the format v1.2.3.

Pushing this tag will trigger an action to release a new version of your library to PyPI.

Optionally create a release from this new tag to let users know what changed.