simple_module_auth

Pluggable authentication core for simple_module apps. Owns the stable public contracts every other module imports — UserContext, the AuthProvider protocol, the PrincipalResolver chain, and the get_current_user / CurrentUser / require_permission dependencies — plus the AuthMiddleware that resolves the current principal on every request.

Heads up: for most apps you don't install this directly — an auth-provider module (simple_module_users for email+password, simple_module_keycloak for OIDC) pulls it in and registers itself on app.state.auth.auth_provider.

Install

pip install simple_module_auth

What it provides

  • UserContext — the request-scoped principal (id, name, email, roles).
  • AuthProvider protocol — the swappable-backend contract (resolve_user, get_login_url, get_logout_url, get_public_paths, is_bearer_request); exactly one provider module registers an implementation on app.state.auth.auth_provider.
  • PrincipalResolver chain — async (Request) -> UserContext | None callables apps append to app.state.auth.principal_resolvers (e.g. PAT/bearer-token or API-key auth), consulted after the session path.
  • AuthMiddleware — delegates to the provider + resolver chain on every request and populates the request principal.
  • get_current_user / CurrentUser dependency and the require_permission(*permissions) dependency factory.
  • Anonymous-access is declared via the framework's method-aware register_public_routes hook (with the SM_AUTH_PUBLIC_PATHS host-level escape hatch).

Usage

from fastapi import APIRouter

from auth.deps import CurrentUser

router = APIRouter()


@router.get("/me")
async def me(user: CurrentUser):
    return {"user_id": user.id, "email": user.email}

Routes that need a specific permission use the require_permission(...) dependency factory:

from fastapi import Depends

from auth.deps import require_permission


@router.post("/", dependencies=[Depends(require_permission("products.create"))])
async def create_product(): ...

Depends on

  • simple_module_core, simple_module_db
  • itsdangerous

License

MIT — see LICENSE.

Project links

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Credits

Author: Anto Subash

GitHub Statistics

Data verified by PyPI on Sep 4, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

MIT
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Requires

Python >=3.12

Tags

authentication cookie fastapi session simple-module

Classifiers

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