arvel-audit 0.6.2

Audit trail and activity log for Arvel — automatic model change history plus a fluent business-event recorder.

arvel-audit

Automatic audit trail and a fluent activity log for Arvel.

Two logging layers in one package:

• Audit trail — add Auditable to a model and every create / update / delete writes an AuditEntry (old values, new values, actor) inside the same transaction. No per-model observer or middleware code.
• Activity log — record business events ("user exported report") with the fluent activity() API. Attach an actor, a subject, a causer, and arbitrary properties; persist in any backend.

Status: Pre-alpha.

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Documentation: https://arvel.dev/packages/audit

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Install

uv add "arvel[audit]"
# or: pip install arvel-audit

Register the provider in bootstrap/providers.py:

from arvel_audit import AuditServiceProvider

providers = [
    # ...other providers...
    AuditServiceProvider,
]

Publish the migrations (audit_entries, activity_entries) and run them:

arvel vendor:publish --tag=arvel-audit   # or: arvel audit:install
arvel migrate

The provider binds AuditConfig and wires the Auditable observers on boot.

Audit trail

from arvel.database import Model, id_, string
from arvel_audit import Auditable


class Invoice(Model, Auditable):
    __tablename__ = "invoices"
    __audit_redact__ = {"card_number", "cvv"}   # masked as "***" in the trail

    id: int = id_()
    status: str = string(20, default="new")

Creating, updating, or deleting an Invoice now records an AuditEntry automatically. The actor is read from Context.get("user_id") when present, otherwise stored as None.

Query the trail:

from arvel_audit import AuditLog

history = await AuditLog(session).for_model(invoice).get()
mine = await AuditLog(session).by_actor(user.id).action("updated").get()
page = await AuditLog(session).for_model(invoice).paginate(per_page=50)

Activity log

from arvel_audit import activity, ActivityQuery

await (
    activity("exports", session=session)
    .log("Exported Q1 report")
    .by(user)
    .on(report)
    .with_properties({"format": "pdf", "rows": 1200})
    .save()
)

entries = await ActivityQuery(session).for_subject(report).get()

Encryption

Set AUDIT_ENCRYPT_VALUES=true to store old_values / new_values as AES-256-GCM ciphertext (keyed from APP_KEY). Reads decrypt transparently.

See the full reference for column control and query options.

License

MIT — see LICENSE.