fix: cleanup + simplify

docs: add authentication example
feat(security): add oauth helpers
2026-04-16 14:46:24 +02:00 · 2026-04-03 19:19:54 +02:00 · 2026-04-03 19:19:54 +02:00 · 2026-04-03 19:19:54 +02:00 · 2026-04-03 19:19:54 +02:00 · 2026-04-03 05:44:10 -04:00
30 changed files with 2874 additions and 32 deletions
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -34,26 +34,17 @@ jobs:
          MAJOR=$(echo "$VERSION" | cut -d. -f1)
          DEPLOY_VERSION="v$(echo "$VERSION" | cut -d. -f1-2)"

-          # On new major: consolidate previous major's feature versions into vX
+          # On new major: keep only the latest feature version of the previous major
          PREV_MAJOR=$((MAJOR - 1))
          OLD_FEATURE_VERSIONS=$(uv run mike list 2>/dev/null | grep -oE "^v${PREV_MAJOR}\.[0-9]+" || true)

          if [ -n "$OLD_FEATURE_VERSIONS" ]; then
-            LATEST_PREV_TAG=$(git tag -l "v${PREV_MAJOR}.*" | sort -V | tail -1)
-
-            if [ -n "$LATEST_PREV_TAG" ]; then
-              git checkout "$LATEST_PREV_TAG" -- docs/ docs_src/ src/ zensical.toml
-              if ! grep -q '\[project\.extra\.version\]' zensical.toml; then
-                printf '\n[project.extra.version]\nprovider = "mike"\ndefault = "stable"\nalias = true\n' >> zensical.toml
-              fi
-              uv run mike deploy "v${PREV_MAJOR}"
-              git checkout HEAD -- docs/ docs_src/ src/ zensical.toml
-            fi
-
-            # Delete old feature versions
+            LATEST_PREV=$(echo "$OLD_FEATURE_VERSIONS" | sort -t. -k2 -n | tail -1)
            echo "$OLD_FEATURE_VERSIONS" | while read -r OLD_V; do
+              if [ "$OLD_V" != "$LATEST_PREV" ]; then
                echo "Deleting $OLD_V"
                uv run mike delete "$OLD_V"
+              fi
            done
          fi

--- a/docs/examples/authentication.md
+++ b/docs/examples/authentication.md
@@ -0,0 +1 @@
+# Authentication
--- a/docs/module/security.md
+++ b/docs/module/security.md
@@ -0,0 +1,267 @@
+# Security
+
+Composable authentication helpers for FastAPI that use `Security()` for OpenAPI documentation and accept user-provided validator functions with full type flexibility.
+
+## Overview
+
+The `security` module provides four auth source classes and a `MultiAuth` factory. Each class wraps a FastAPI security scheme for OpenAPI and accepts a validator function called as:
+
+```python
+await validator(credential, **kwargs)
+```
+
+where `kwargs` are the extra keyword arguments provided at instantiation (roles, permissions, enums, etc.). The validator returns the authenticated identity (e.g. a `User` model) which becomes the route dependency value.
+
+```python
+from fastapi import Security
+from fastapi_toolsets.security import BearerTokenAuth
+
+async def verify_token(token: str, *, role: str) -> User:
+    user = await db.get_by_token(token)
+    if not user or user.role != role:
+        raise UnauthorizedError()
+    return user
+
+bearer_admin = BearerTokenAuth(verify_token, role="admin")
+
+@app.get("/admin")
+async def admin_route(user: User = Security(bearer_admin)):
+    return user
+```
+
+## Auth sources
+
+### [`BearerTokenAuth`](../reference/security.md#fastapi_toolsets.security.BearerTokenAuth)
+
+Reads the `Authorization: Bearer <token>` header. Wraps `HTTPBearer` for OpenAPI.
+
+```python
+from fastapi_toolsets.security import BearerTokenAuth
+
+bearer = BearerTokenAuth(validator=verify_token)
+
+@app.get("/me")
+async def me(user: User = Security(bearer)):
+    return user
+```
+
+#### Token prefix
+
+The optional `prefix` parameter restricts a `BearerTokenAuth` instance to tokens
+that start with a given string. The prefix is **kept** in the value passed to the
+validator — store and compare tokens with their prefix included.
+
+This lets you deploy multiple `BearerTokenAuth` instances in the same application
+and disambiguate them efficiently in `MultiAuth`:
+
+```python
+user_bearer = BearerTokenAuth(verify_user, prefix="user_")  # matches "Bearer user_..."
+org_bearer  = BearerTokenAuth(verify_org,  prefix="org_")   # matches "Bearer org_..."
+```
+
+Use [`generate_token()`](#token-generation) to create correctly-prefixed tokens.
+
+#### Token generation
+
+`BearerTokenAuth.generate_token()` produces a secure random token ready to store
+in your database and return to the client. If a prefix is configured it is
+prepended automatically:
+
+```python
+bearer = BearerTokenAuth(verify_token, prefix="user_")
+
+token = bearer.generate_token()   # e.g. "user_Xk3mN..."
+await db.store_token(user_id, token)
+return {"access_token": token, "token_type": "bearer"}
+```
+
+The client sends `Authorization: Bearer user_Xk3mN...` and the validator receives
+the full token (prefix included) to compare against the stored value.
+
+### [`CookieAuth`](../reference/security.md#fastapi_toolsets.security.CookieAuth)
+
+Reads a named cookie. Wraps `APIKeyCookie` for OpenAPI.
+
+```python
+from fastapi_toolsets.security import CookieAuth
+
+cookie_auth = CookieAuth("session", validator=verify_session)
+
+@app.get("/me")
+async def me(user: User = Security(cookie_auth)):
+    return user
+```
+
+### [`OAuth2Auth`](../reference/security.md#fastapi_toolsets.security.OAuth2Auth)
+
+Reads the `Authorization: Bearer <token>` header and registers the token endpoint
+in OpenAPI via `OAuth2PasswordBearer`.
+
+```python
+from fastapi_toolsets.security import OAuth2Auth
+
+oauth2_auth = OAuth2Auth(token_url="/token", validator=verify_token)
+
+@app.get("/me")
+async def me(user: User = Security(oauth2_auth)):
+    return user
+```
+
+### [`OpenIDAuth`](../reference/security.md#fastapi_toolsets.security.OpenIDAuth)
+
+Reads the `Authorization: Bearer <token>` header and registers the OpenID Connect
+discovery URL in OpenAPI via `OpenIdConnect`. Token validation is fully delegated
+to your validator — use any OIDC / JWT library (`authlib`, `python-jose`, `PyJWT`).
+
+```python
+from fastapi_toolsets.security import OpenIDAuth
+
+async def verify_google_token(token: str, *, audience: str) -> User:
+    payload = jwt.decode(token, google_public_keys, algorithms=["RS256"],
+                         audience=audience)
+    return User(email=payload["email"], name=payload["name"])
+
+google_auth = OpenIDAuth(
+    "https://accounts.google.com/.well-known/openid-configuration",
+    verify_google_token,
+    audience="my-client-id",
+)
+
+@app.get("/me")
+async def me(user: User = Security(google_auth)):
+    return user
+```
+
+The discovery URL is used **only for OpenAPI documentation** — no requests are made
+to it by this class. You are responsible for fetching and caching the provider's
+public keys in your validator.
+
+Multiple providers work naturally with `MultiAuth`:
+
+```python
+multi = MultiAuth(google_auth, github_auth)
+
+@app.get("/data")
+async def data(user: User = Security(multi)):
+    return user
+```
+
+## Typed validator kwargs
+
+All auth classes forward extra instantiation keyword arguments to the validator.
+Arguments can be any type — enums, strings, integers, etc. The validator returns
+the authenticated identity, which FastAPI injects directly into the route handler.
+
+```python
+async def verify_token(token: str, *, role: Role, permission: str) -> User:
+    user = await decode_token(token)
+    if user.role != role or permission not in user.permissions:
+        raise UnauthorizedError()
+    return user
+
+bearer = BearerTokenAuth(verify_token, role=Role.ADMIN, permission="billing:read")
+```
+
+Each auth instance is self-contained — create a separate instance per distinct
+requirement instead of passing requirements through `Security(scopes=[...])`.
+
+### Using `.require()` inline
+
+If declaring a new top-level variable per role feels verbose, use `.require()` to
+create a configured clone directly in the route decorator. The original instance
+is not mutated:
+
+```python
+bearer = BearerTokenAuth(verify_token)
+
+@app.get("/admin/stats")
+async def admin_stats(user: User = Security(bearer.require(role=Role.ADMIN))):
+    return {"message": f"Hello admin {user.name}"}
+
+@app.get("/profile")
+async def profile(user: User = Security(bearer.require(role=Role.USER))):
+    return {"id": user.id, "name": user.name}
+```
+
+`.require()` kwargs are merged over existing ones — new values win on conflict.
+The `prefix` (for `BearerTokenAuth`) and cookie name (for `CookieAuth`) are
+always preserved.
+
+`.require()` instances work transparently inside `MultiAuth`:
+
+```python
+multi = MultiAuth(
+    user_bearer.require(role=Role.USER),
+    org_bearer.require(role=Role.ADMIN),
+)
+```
+
+## MultiAuth
+
+[`MultiAuth`](../reference/security.md#fastapi_toolsets.security.MultiAuth) combines
+multiple auth sources into a single callable. Sources are tried in order; the
+first one that finds a credential wins.
+
+```python
+from fastapi_toolsets.security import MultiAuth
+
+multi = MultiAuth(user_bearer, org_bearer, cookie_auth)
+
+@app.get("/data")
+async def data_route(user = Security(multi)):
+    return user
+```
+
+### Using `.require()` on MultiAuth
+
+`MultiAuth` also supports `.require()`, which propagates the kwargs to every
+source that implements it. Sources that do not (e.g. custom `AuthSource`
+subclasses) are passed through unchanged:
+
+```python
+multi = MultiAuth(bearer, cookie)
+
+@app.get("/admin")
+async def admin(user: User = Security(multi.require(role=Role.ADMIN))):
+    return user
+```
+
+This is equivalent to calling `.require()` on each source individually:
+
+```python
+# These two are identical
+multi.require(role=Role.ADMIN)
+
+MultiAuth(
+    bearer.require(role=Role.ADMIN),
+    cookie.require(role=Role.ADMIN),
+)
+```
+
+### Prefix-based dispatch
+
+Because `extract()` is pure string matching (no I/O), prefix-based source
+selection is essentially free. Only the matching source's validator (which may
+involve DB or network I/O) is ever called:
+
+```python
+user_bearer = BearerTokenAuth(verify_user, prefix="user_")
+org_bearer  = BearerTokenAuth(verify_org,  prefix="org_")
+
+multi = MultiAuth(user_bearer, org_bearer)
+
+# "Bearer user_alice" → only verify_user runs, receives "user_alice"
+# "Bearer org_acme"   → only verify_org runs, receives "org_acme"
+```
+
+Tokens are stored and compared **with their prefix** — use `generate_token()` on
+each source to issue correctly-prefixed tokens:
+
+```python
+user_token = user_bearer.generate_token()  # "user_..."
+org_token  = org_bearer.generate_token()   # "org_..."
+```
+
+---
+
+[:material-api: API Reference](../reference/security.md)
--- a/docs/reference/security.md
+++ b/docs/reference/security.md
@@ -0,0 +1,28 @@
+# `security`
+
+Here's the reference for the authentication helpers provided by the `security` module.
+
+You can import them directly from `fastapi_toolsets.security`:
+
+```python
+from fastapi_toolsets.security import (
+    AuthSource,
+    BearerTokenAuth,
+    CookieAuth,
+    OAuth2Auth,
+    OpenIDAuth,
+    MultiAuth,
+)
+```
+
+## ::: fastapi_toolsets.security.AuthSource
+
+## ::: fastapi_toolsets.security.BearerTokenAuth
+
+## ::: fastapi_toolsets.security.CookieAuth
+
+## ::: fastapi_toolsets.security.OAuth2Auth
+
+## ::: fastapi_toolsets.security.OpenIDAuth
+
+## ::: fastapi_toolsets.security.MultiAuth
--- a/docs_src/examples/authentication/init.py
+++ b/docs_src/examples/authentication/init.py
--- a/docs_src/examples/authentication/app.py
+++ b/docs_src/examples/authentication/app.py
@@ -0,0 +1,9 @@
+from fastapi import FastAPI
+
+from fastapi_toolsets.exceptions import init_exceptions_handlers
+
+from .routes import router
+
+app = FastAPI()
+init_exceptions_handlers(app=app)
+app.include_router(router=router)
--- a/docs_src/examples/authentication/crud.py
+++ b/docs_src/examples/authentication/crud.py
@@ -0,0 +1,9 @@
+from fastapi_toolsets.crud import CrudFactory
+
+from .models import OAuthAccount, OAuthProvider, Team, User, UserToken
+
+TeamCrud = CrudFactory(model=Team)
+UserCrud = CrudFactory(model=User)
+UserTokenCrud = CrudFactory(model=UserToken)
+OAuthProviderCrud = CrudFactory(model=OAuthProvider)
+OAuthAccountCrud = CrudFactory(model=OAuthAccount)
--- a/docs_src/examples/authentication/db.py
+++ b/docs_src/examples/authentication/db.py
@@ -0,0 +1,15 @@
+from fastapi import Depends
+from sqlalchemy.ext.asyncio import async_sessionmaker, create_async_engine
+
+from fastapi_toolsets.db import create_db_context, create_db_dependency
+
+DATABASE_URL = "postgresql+asyncpg://postgres:postgres@localhost:5432/postgres"
+
+engine = create_async_engine(url=DATABASE_URL, future=True)
+async_session_maker = async_sessionmaker(bind=engine, expire_on_commit=False)
+
+get_db = create_db_dependency(session_maker=async_session_maker)
+get_db_context = create_db_context(session_maker=async_session_maker)
+
+
+SessionDep = Depends(get_db)
--- a/docs_src/examples/authentication/models.py
+++ b/docs_src/examples/authentication/models.py
@@ -0,0 +1,105 @@
+import enum
+from datetime import datetime
+from uuid import UUID
+
+from sqlalchemy import (
+    Boolean,
+    DateTime,
+    Enum,
+    ForeignKey,
+    Integer,
+    String,
+    UniqueConstraint,
+)
+from sqlalchemy.dialects.postgresql import UUID as PG_UUID
+from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column, relationship
+
+from fastapi_toolsets.models import TimestampMixin, UUIDMixin
+
+
+class Base(DeclarativeBase, UUIDMixin):
+    type_annotation_map = {
+        str: String(),
+        int: Integer(),
+        UUID: PG_UUID(as_uuid=True),
+        datetime: DateTime(timezone=True),
+    }
+
+
+class UserRole(enum.Enum):
+    admin = "admin"
+    moderator = "moderator"
+    user = "user"
+
+
+class Team(Base, TimestampMixin):
+    __tablename__ = "teams"
+
+    name: Mapped[str] = mapped_column(String, unique=True, index=True)
+    users: Mapped[list["User"]] = relationship(back_populates="team")
+
+
+class User(Base, TimestampMixin):
+    __tablename__ = "users"
+
+    username: Mapped[str] = mapped_column(String, unique=True, index=True)
+    email: Mapped[str | None] = mapped_column(
+        String, unique=True, index=True, nullable=True
+    )
+    hashed_password: Mapped[str | None] = mapped_column(String, nullable=True)
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
+    role: Mapped[UserRole] = mapped_column(Enum(UserRole), default=UserRole.user)
+
+    team_id: Mapped[UUID | None] = mapped_column(ForeignKey("teams.id"), nullable=True)
+    team: Mapped["Team | None"] = relationship(back_populates="users")
+    oauth_accounts: Mapped[list["OAuthAccount"]] = relationship(back_populates="user")
+    tokens: Mapped[list["UserToken"]] = relationship(back_populates="user")
+
+
+class UserToken(Base, TimestampMixin):
+    """API tokens for a user (multiple allowed)."""
+
+    __tablename__ = "user_tokens"
+
+    user_id: Mapped[UUID] = mapped_column(ForeignKey("users.id"))
+    # Store hashed token value
+    token_hash: Mapped[str] = mapped_column(String, unique=True, index=True)
+    name: Mapped[str | None] = mapped_column(String, nullable=True)
+    expires_at: Mapped[datetime | None] = mapped_column(
+        DateTime(timezone=True), nullable=True
+    )
+
+    user: Mapped["User"] = relationship(back_populates="tokens")
+
+
+class OAuthProvider(Base, TimestampMixin):
+    """Configurable OAuth2 / OpenID Connect provider."""
+
+    __tablename__ = "oauth_providers"
+
+    slug: Mapped[str] = mapped_column(String, unique=True, index=True)
+    name: Mapped[str] = mapped_column(String)
+    client_id: Mapped[str] = mapped_column(String)
+    client_secret: Mapped[str] = mapped_column(String)
+    discovery_url: Mapped[str] = mapped_column(String, nullable=False)
+    scopes: Mapped[str] = mapped_column(String, default="openid email profile")
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
+
+    accounts: Mapped[list["OAuthAccount"]] = relationship(back_populates="provider")
+
+
+class OAuthAccount(Base, TimestampMixin):
+    """OAuth2 / OpenID Connect account linked to a user."""
+
+    __tablename__ = "oauth_accounts"
+    __table_args__ = (
+        UniqueConstraint("provider_id", "subject", name="uq_oauth_provider_subject"),
+    )
+
+    user_id: Mapped[UUID] = mapped_column(ForeignKey("users.id"))
+    provider_id: Mapped[UUID] = mapped_column(ForeignKey("oauth_providers.id"))
+    # OAuth `sub` / OpenID subject identifier
+    subject: Mapped[str] = mapped_column(String)
+
+    user: Mapped["User"] = relationship(back_populates="oauth_accounts")
+    provider: Mapped["OAuthProvider"] = relationship(back_populates="accounts")
--- a/docs_src/examples/authentication/routes.py
+++ b/docs_src/examples/authentication/routes.py
@@ -0,0 +1,122 @@
+from typing import Annotated
+from uuid import UUID
+
+import bcrypt
+from fastapi import APIRouter, Form, HTTPException, Response, Security
+
+from fastapi_toolsets.dependencies import PathDependency
+
+from .crud import UserCrud, UserTokenCrud
+from .db import SessionDep
+from .models import OAuthProvider, User, UserToken
+from .schemas import (
+    ApiTokenCreateRequest,
+    ApiTokenResponse,
+    RegisterRequest,
+    UserCreate,
+    UserResponse,
+)
+from .security import auth, cookie_auth, create_api_token
+
+ProviderDep = PathDependency(
+    model=OAuthProvider,
+    field=OAuthProvider.slug,
+    session_dep=SessionDep,
+    param_name="slug",
+)
+
+
+def hash_password(password: str) -> str:
+    return bcrypt.hashpw(password.encode(), bcrypt.gensalt()).decode()
+
+
+def verify_password(plain: str, hashed: str) -> bool:
+    return bcrypt.checkpw(plain.encode(), hashed.encode())
+
+
+router = APIRouter(prefix="/auth")
+
+
+@router.post("/register", response_model=UserResponse, status_code=201)
+async def register(body: RegisterRequest, session: SessionDep):
+    existing = await UserCrud.first(
+        session=session, filters=[User.username == body.username]
+    )
+    if existing:
+        raise HTTPException(status_code=409, detail="Username already taken")
+
+    user = await UserCrud.create(
+        session=session,
+        obj=UserCreate(
+            username=body.username,
+            email=body.email,
+            hashed_password=hash_password(body.password),
+        ),
+    )
+    return user
+
+
+@router.post("/token", status_code=204)
+async def login(
+    session: SessionDep,
+    response: Response,
+    username: Annotated[str, Form()],
+    password: Annotated[str, Form()],
+):
+    user = await UserCrud.first(session=session, filters=[User.username == username])
+
+    if (
+        not user
+        or not user.hashed_password
+        or not verify_password(password, user.hashed_password)
+    ):
+        raise HTTPException(status_code=401, detail="Invalid credentials")
+
+    if not user.is_active:
+        raise HTTPException(status_code=403, detail="Account disabled")
+
+    cookie_auth.set_cookie(response, str(user.id))
+
+
+@router.post("/logout", status_code=204)
+async def logout(response: Response):
+    cookie_auth.delete_cookie(response)
+
+
+@router.get("/me", response_model=UserResponse)
+async def me(user: User = Security(auth)):
+    return user
+
+
+@router.post("/tokens", response_model=ApiTokenResponse, status_code=201)
+async def create_token(
+    body: ApiTokenCreateRequest,
+    user: User = Security(auth),
+):
+    raw, token_row = await create_api_token(
+        user.id, name=body.name, expires_at=body.expires_at
+    )
+    return ApiTokenResponse(
+        id=token_row.id,
+        name=token_row.name,
+        expires_at=token_row.expires_at,
+        created_at=token_row.created_at,
+        token=raw,
+    )
+
+
+@router.delete("/tokens/{token_id}", status_code=204)
+async def revoke_token(
+    session: SessionDep,
+    token_id: UUID,
+    user: User = Security(auth),
+):
+    if not await UserTokenCrud.first(
+        session=session,
+        filters=[UserToken.id == token_id, UserToken.user_id == user.id],
+    ):
+        raise HTTPException(status_code=404, detail="Token not found")
+    await UserTokenCrud.delete(
+        session=session,
+        filters=[UserToken.id == token_id, UserToken.user_id == user.id],
+    )
--- a/docs_src/examples/authentication/schemas.py
+++ b/docs_src/examples/authentication/schemas.py
@@ -0,0 +1,64 @@
+from datetime import datetime
+from uuid import UUID
+
+from pydantic import EmailStr
+
+from fastapi_toolsets.schemas import PydanticBase
+
+
+class RegisterRequest(PydanticBase):
+    username: str
+    password: str
+    email: EmailStr | None = None
+
+
+class UserResponse(PydanticBase):
+    id: UUID
+    username: str
+    email: str | None
+    role: str
+    is_active: bool
+
+    model_config = {"from_attributes": True}
+
+
+class ApiTokenCreateRequest(PydanticBase):
+    name: str | None = None
+    expires_at: datetime | None = None
+
+
+class ApiTokenResponse(PydanticBase):
+    id: UUID
+    name: str | None
+    expires_at: datetime | None
+    created_at: datetime
+    # Only populated on creation
+    token: str | None = None
+
+    model_config = {"from_attributes": True}
+
+
+class OAuthProviderResponse(PydanticBase):
+    slug: str
+    name: str
+
+    model_config = {"from_attributes": True}
+
+
+class UserCreate(PydanticBase):
+    username: str
+    email: str | None = None
+    hashed_password: str | None = None
+
+
+class UserTokenCreate(PydanticBase):
+    user_id: UUID
+    token_hash: str
+    name: str | None = None
+    expires_at: datetime | None = None
+
+
+class OAuthAccountCreate(PydanticBase):
+    user_id: UUID
+    provider_id: UUID
+    subject: str
--- a/docs_src/examples/authentication/security.py
+++ b/docs_src/examples/authentication/security.py
@@ -0,0 +1,100 @@
+import hashlib
+from datetime import datetime, timezone
+from uuid import UUID
+
+from fastapi import HTTPException
+from sqlalchemy.orm import selectinload
+
+from fastapi_toolsets.exceptions import UnauthorizedError
+from fastapi_toolsets.security import (
+    APIKeyHeaderAuth,
+    BearerTokenAuth,
+    CookieAuth,
+    MultiAuth,
+)
+
+from .crud import UserCrud, UserTokenCrud
+from .db import get_db_context
+from .models import User, UserRole, UserToken
+from .schemas import UserTokenCreate
+
+SESSION_COOKIE = "session"
+SECRET_KEY = "123456789"
+
+
+def _hash_token(token: str) -> str:
+    return hashlib.sha256(token.encode()).hexdigest()
+
+
+async def _verify_token(token: str, role: UserRole | None = None) -> User:
+    async with get_db_context() as db:
+        user_token = await UserTokenCrud.first(
+            session=db,
+            filters=[UserToken.token_hash == _hash_token(token)],
+            load_options=[selectinload(UserToken.user)],
+        )
+
+        if user_token is None or not user_token.user.is_active:
+            raise UnauthorizedError()
+
+        if user_token.expires_at and user_token.expires_at < datetime.now(timezone.utc):
+            raise UnauthorizedError()
+
+        user = user_token.user
+
+        if role is not None and user.role != role:
+            raise HTTPException(status_code=403, detail="Insufficient permissions")
+
+        return user
+
+
+async def _verify_cookie(user_id: str, role: UserRole | None = None) -> User:
+    async with get_db_context() as db:
+        user = await UserCrud.first(
+            session=db,
+            filters=[User.id == UUID(user_id)],
+        )
+
+    if not user or not user.is_active:
+        raise UnauthorizedError()
+
+    if role is not None and user.role != role:
+        raise HTTPException(status_code=403, detail="Insufficient permissions")
+
+    return user
+
+
+bearer_auth = BearerTokenAuth(
+    validator=_verify_token,
+    prefix="ctf_",
+)
+header_auth = APIKeyHeaderAuth(
+    name="X-API-Key",
+    validator=_verify_token,
+)
+cookie_auth = CookieAuth(
+    name=SESSION_COOKIE,
+    validator=_verify_cookie,
+    secret_key=SECRET_KEY,
+)
+auth = MultiAuth(bearer_auth, header_auth, cookie_auth)
+
+
+async def create_api_token(
+    user_id: UUID,
+    *,
+    name: str | None = None,
+    expires_at: datetime | None = None,
+) -> tuple[str, UserToken]:
+    raw = bearer_auth.generate_token()
+    async with get_db_context() as db:
+        token_row = await UserTokenCrud.create(
+            session=db,
+            obj=UserTokenCreate(
+                user_id=user_id,
+                token_hash=_hash_token(raw),
+                name=name,
+                expires_at=expires_at,
+            ),
+        )
+    return raw, token_row
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "fastapi-toolsets"
-version = "3.0.0"
+version = "3.0.1"
 description = "Production-ready utilities for FastAPI applications"
 readme = "README.md"
 license = "MIT"
@@ -66,6 +66,7 @@ manager = "fastapi_toolsets.cli.app:cli"
 dev = [
    {include-group = "tests"},
    {include-group = "docs"},
+    {include-group = "docs-src"},
    "fastapi-toolsets[all]",
    "prek>=0.3.8",
    "ruff>=0.1.0",
@@ -84,6 +85,9 @@ docs = [
    "mkdocstrings-python>=2.0.2",
    "zensical>=0.0.30",
 ]
+docs-src = [
+    "bcrypt>=4.0.0",
+]

 [build-system]
 requires = ["uv_build>=0.10,<0.12.0"]
--- a/src/fastapi_toolsets/init.py
+++ b/src/fastapi_toolsets/init.py
@@ -21,4 +21,4 @@ Example usage:
        return Response(data={"user": user.username}, message="Success")
 """

-__version__ = "3.0.0"
+__version__ = "3.0.1"
--- a/src/fastapi_toolsets/crud/search.py
+++ b/src/fastapi_toolsets/crud/search.py
@@ -278,6 +278,18 @@ _EQUALITY_TYPES = (String, Integer, Numeric, Date, DateTime, Time, Enum, Uuid)
 """Column types that support equality / IN filtering in build_filter_by."""


+def _coerce_bool(value: Any) -> bool:
+    """Coerce a string value to a Python bool for Boolean column filtering."""
+    if isinstance(value, bool):
+        return value
+    if isinstance(value, str):
+        if value.lower() == "true":
+            return True
+        if value.lower() == "false":
+            return False
+    raise ValueError(f"Cannot coerce {value!r} to bool")
+
+
 def build_filter_by(
    filter_by: dict[str, Any],
    facet_fields: Sequence[FacetFieldType],
@@ -324,16 +336,17 @@ def build_filter_by(
                added_join_keys.add(rel_key)

        col_type = column.property.columns[0].type
-        if isinstance(col_type, ARRAY):
+        if isinstance(col_type, Boolean):
+            coerce = _coerce_bool
+            if isinstance(value, list):
+                filters.append(column.in_([coerce(v) for v in value]))
+            else:
+                filters.append(column == coerce(value))
+        elif isinstance(col_type, ARRAY):
            if isinstance(value, list):
                filters.append(column.overlap(value))
            else:
                filters.append(column.any(value))
-        elif isinstance(col_type, Boolean):
-            if isinstance(value, list):
-                filters.append(column.in_(value))
-            else:
-                filters.append(column.is_(value))
        elif isinstance(col_type, _EQUALITY_TYPES):
            if isinstance(value, list):
                filters.append(column.in_(value))
--- a/src/fastapi_toolsets/security/init.py
+++ b/src/fastapi_toolsets/security/init.py
@@ -0,0 +1,24 @@
+"""Authentication helpers for FastAPI using Security()."""
+
+from .abc import AuthSource
+from .oauth import (
+    oauth_build_authorization_redirect,
+    oauth_decode_state,
+    oauth_encode_state,
+    oauth_fetch_userinfo,
+    oauth_resolve_provider_urls,
+)
+from .sources import APIKeyHeaderAuth, BearerTokenAuth, CookieAuth, MultiAuth
+
+__all__ = [
+    "APIKeyHeaderAuth",
+    "AuthSource",
+    "BearerTokenAuth",
+    "CookieAuth",
+    "MultiAuth",
+    "oauth_build_authorization_redirect",
+    "oauth_decode_state",
+    "oauth_encode_state",
+    "oauth_fetch_userinfo",
+    "oauth_resolve_provider_urls",
+]
--- a/src/fastapi_toolsets/security/abc.py
+++ b/src/fastapi_toolsets/security/abc.py
@@ -0,0 +1,53 @@
+"""Abstract base class for authentication sources."""
+
+import inspect
+from abc import ABC, abstractmethod
+from typing import Any, Callable
+
+from fastapi import Request
+from fastapi.security import SecurityScopes
+
+from fastapi_toolsets.exceptions import UnauthorizedError
+
+
+def _ensure_async(fn: Callable[..., Any]) -> Callable[..., Any]:
+    """Wrap *fn* so it can always be awaited, caching the coroutine check at init time."""
+    if inspect.iscoroutinefunction(fn):
+        return fn
+
+    async def wrapper(*args: Any, **kwargs: Any) -> Any:
+        return fn(*args, **kwargs)
+
+    return wrapper
+
+
+class AuthSource(ABC):
+    """Abstract base class for authentication sources."""
+
+    def __init__(self) -> None:
+        """Set up the default FastAPI dependency signature."""
+        source = self
+
+        async def _call(
+            request: Request,
+            security_scopes: SecurityScopes,  # noqa: ARG001
+        ) -> Any:
+            credential = await source.extract(request)
+            if credential is None:
+                raise UnauthorizedError()
+            return await source.authenticate(credential)
+
+        self._call_fn: Callable[..., Any] = _call
+        self.__signature__ = inspect.signature(_call)
+
+    @abstractmethod
+    async def extract(self, request: Request) -> str | None:
+        """Extract the raw credential from the request without validating."""
+
+    @abstractmethod
+    async def authenticate(self, credential: str) -> Any:
+        """Validate a credential and return the authenticated identity."""
+
+    async def __call__(self, **kwargs: Any) -> Any:
+        """FastAPI dependency dispatch."""
+        return await self._call_fn(**kwargs)
--- a/src/fastapi_toolsets/security/oauth.py
+++ b/src/fastapi_toolsets/security/oauth.py
@@ -0,0 +1,140 @@
+"""OAuth 2.0 / OIDC helper utilities."""
+
+import base64
+from typing import Any
+from urllib.parse import urlencode
+
+import httpx
+from fastapi.responses import RedirectResponse
+
+_discovery_cache: dict[str, dict] = {}
+
+
+async def oauth_resolve_provider_urls(
+    discovery_url: str,
+) -> tuple[str, str, str | None]:
+    """Fetch the OIDC discovery document and return endpoint URLs.
+
+    Args:
+        discovery_url: URL of the provider's ``/.well-known/openid-configuration``.
+
+    Returns:
+        A ``(authorization_url, token_url, userinfo_url)`` tuple.
+        *userinfo_url* is ``None`` when the provider does not advertise one.
+    """
+    if discovery_url not in _discovery_cache:
+        async with httpx.AsyncClient() as client:
+            resp = await client.get(discovery_url)
+            resp.raise_for_status()
+            _discovery_cache[discovery_url] = resp.json()
+    cfg = _discovery_cache[discovery_url]
+    return (
+        cfg["authorization_endpoint"],
+        cfg["token_endpoint"],
+        cfg.get("userinfo_endpoint"),
+    )
+
+
+async def oauth_fetch_userinfo(
+    *,
+    token_url: str,
+    userinfo_url: str,
+    code: str,
+    client_id: str,
+    client_secret: str,
+    redirect_uri: str,
+) -> dict[str, Any]:
+    """Exchange an authorization code for tokens and return the userinfo payload.
+
+    Performs the two-step OAuth 2.0 / OIDC token exchange:
+
+    1. POSTs the authorization *code* to *token_url* to obtain an access token.
+    2. GETs *userinfo_url* using that access token as a Bearer credential.
+
+    Args:
+        token_url: Provider's token endpoint.
+        userinfo_url: Provider's userinfo endpoint.
+        code: Authorization code received from the provider's callback.
+        client_id: OAuth application client ID.
+        client_secret: OAuth application client secret.
+        redirect_uri: Redirect URI that was used in the authorization request.
+
+    Returns:
+        The JSON payload returned by the userinfo endpoint as a plain ``dict``.
+    """
+    async with httpx.AsyncClient() as client:
+        token_resp = await client.post(
+            token_url,
+            data={
+                "grant_type": "authorization_code",
+                "code": code,
+                "client_id": client_id,
+                "client_secret": client_secret,
+                "redirect_uri": redirect_uri,
+            },
+            headers={"Accept": "application/json"},
+        )
+        token_resp.raise_for_status()
+        access_token = token_resp.json()["access_token"]
+
+        userinfo_resp = await client.get(
+            userinfo_url,
+            headers={"Authorization": f"Bearer {access_token}"},
+        )
+        userinfo_resp.raise_for_status()
+        return userinfo_resp.json()
+
+
+def oauth_build_authorization_redirect(
+    authorization_url: str,
+    *,
+    client_id: str,
+    scopes: str,
+    redirect_uri: str,
+    destination: str,
+) -> RedirectResponse:
+    """Return an OAuth 2.0 authorization ``RedirectResponse``.
+
+    Args:
+        authorization_url: Provider's authorization endpoint.
+        client_id: OAuth application client ID.
+        scopes: Space-separated list of requested scopes.
+        redirect_uri: URI the provider should redirect back to after authorization.
+        destination: URL the user should be sent to after the full OAuth flow
+            completes (encoded as ``state``).
+
+    Returns:
+        A :class:`~fastapi.responses.RedirectResponse` to the provider's
+        authorization page.
+    """
+    params = urlencode(
+        {
+            "client_id": client_id,
+            "response_type": "code",
+            "scope": scopes,
+            "redirect_uri": redirect_uri,
+            "state": oauth_encode_state(destination),
+        }
+    )
+    return RedirectResponse(f"{authorization_url}?{params}")
+
+
+def oauth_encode_state(url: str) -> str:
+    """Base64url-encode a URL to embed as an OAuth ``state`` parameter."""
+    return base64.urlsafe_b64encode(url.encode()).decode()
+
+
+def oauth_decode_state(state: str | None, *, fallback: str) -> str:
+    """Decode a base64url OAuth ``state`` parameter.
+
+    Handles missing padding (some providers strip ``=``).
+    Returns *fallback* if *state* is absent, the literal string ``"null"``,
+    or cannot be decoded.
+    """
+    if not state or state == "null":
+        return fallback
+    try:
+        padded = state + "=" * (4 - len(state) % 4)
+        return base64.urlsafe_b64decode(padded).decode()
+    except Exception:
+        return fallback
--- a/src/fastapi_toolsets/security/sources/init.py
+++ b/src/fastapi_toolsets/security/sources/init.py
@@ -0,0 +1,8 @@
+"""Built-in authentication source implementations."""
+
+from .header import APIKeyHeaderAuth
+from .bearer import BearerTokenAuth
+from .cookie import CookieAuth
+from .multi import MultiAuth
+
+__all__ = ["APIKeyHeaderAuth", "BearerTokenAuth", "CookieAuth", "MultiAuth"]
--- a/src/fastapi_toolsets/security/sources/bearer.py
+++ b/src/fastapi_toolsets/security/sources/bearer.py
@@ -0,0 +1,120 @@
+"""Bearer token authentication source."""
+
+import inspect
+import secrets
+from typing import Annotated, Any, Callable
+
+from fastapi import Depends
+from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer, SecurityScopes
+
+from fastapi_toolsets.exceptions import UnauthorizedError
+
+from ..abc import AuthSource, _ensure_async
+
+
+class BearerTokenAuth(AuthSource):
+    """Bearer token authentication source.
+
+    Wraps :class:`fastapi.security.HTTPBearer` for OpenAPI documentation.
+    The validator is called as ``await validator(credential, **kwargs)``
+    where ``kwargs`` are the extra keyword arguments provided at instantiation.
+
+    Args:
+        validator: Sync or async callable that receives the credential and any
+            extra keyword arguments, and returns the authenticated identity
+            (e.g. a ``User`` model). Should raise
+            :class:`~fastapi_toolsets.exceptions.UnauthorizedError` on failure.
+        prefix: Optional token prefix (e.g. ``"user_"``). If set, only tokens
+            whose value starts with this prefix are matched. The prefix is
+            **kept** in the value passed to the validator — store and compare
+            tokens with their prefix included. Use :meth:`generate_token` to
+            create correctly-prefixed tokens. This enables multiple
+            ``BearerTokenAuth`` instances in the same app (e.g. ``"user_"``
+            for user tokens, ``"org_"`` for org tokens).
+        **kwargs: Extra keyword arguments forwarded to the validator on every
+            call (e.g. ``role=Role.ADMIN``).
+    """
+
+    def __init__(
+        self,
+        validator: Callable[..., Any],
+        *,
+        prefix: str | None = None,
+        **kwargs: Any,
+    ) -> None:
+        self._validator = _ensure_async(validator)
+        self._prefix = prefix
+        self._kwargs = kwargs
+        self._scheme = HTTPBearer(auto_error=False)
+
+        async def _call(
+            security_scopes: SecurityScopes,  # noqa: ARG001
+            credentials: Annotated[
+                HTTPAuthorizationCredentials | None, Depends(self._scheme)
+            ] = None,
+        ) -> Any:
+            if credentials is None:
+                raise UnauthorizedError()
+            return await self._validate(credentials.credentials)
+
+        self._call_fn = _call
+        self.__signature__ = inspect.signature(_call)
+
+    async def _validate(self, token: str) -> Any:
+        """Check prefix and call the validator."""
+        if self._prefix is not None and not token.startswith(self._prefix):
+            raise UnauthorizedError()
+        return await self._validator(token, **self._kwargs)
+
+    async def extract(self, request: Any) -> str | None:
+        """Extract the raw credential from the request without validating.
+
+        Returns ``None`` if no ``Authorization: Bearer`` header is present,
+        the token is empty, or the token does not match the configured prefix.
+        The prefix is included in the returned value.
+        """
+        auth = request.headers.get("Authorization", "")
+        if not auth.startswith("Bearer "):
+            return None
+        token = auth[7:]
+        if not token:
+            return None
+        if self._prefix is not None and not token.startswith(self._prefix):
+            return None
+        return token
+
+    async def authenticate(self, credential: str) -> Any:
+        """Validate a credential and return the identity.
+
+        Calls ``await validator(credential, **kwargs)`` where ``kwargs`` are
+        the extra keyword arguments provided at instantiation.
+        """
+        return await self._validate(credential)
+
+    def require(self, **kwargs: Any) -> "BearerTokenAuth":
+        """Return a new instance with additional (or overriding) validator kwargs."""
+        return BearerTokenAuth(
+            self._validator,
+            prefix=self._prefix,
+            **{**self._kwargs, **kwargs},
+        )
+
+    def generate_token(self, nbytes: int = 32) -> str:
+        """Generate a secure random token for this auth source.
+
+        Returns a URL-safe random token. If a prefix is configured it is
+        prepended — the returned value is what you store in your database
+        and return to the client as-is.
+
+        Args:
+            nbytes: Number of random bytes before base64 encoding. The
+                resulting string is ``ceil(nbytes * 4 / 3)`` characters
+                (43 chars for the default 32 bytes). Defaults to 32.
+
+        Returns:
+            A ready-to-use token string (e.g. ``"user_Xk3..."``).
+        """
+        token = secrets.token_urlsafe(nbytes)
+        if self._prefix is not None:
+            return f"{self._prefix}{token}"
+        return token
--- a/src/fastapi_toolsets/security/sources/cookie.py
+++ b/src/fastapi_toolsets/security/sources/cookie.py
@@ -0,0 +1,139 @@
+"""Cookie-based authentication source."""
+
+import base64
+import hashlib
+import hmac
+import inspect
+import json
+import time
+from typing import Annotated, Any, Callable
+
+from fastapi import Depends, Request, Response
+from fastapi.security import APIKeyCookie, SecurityScopes
+
+from fastapi_toolsets.exceptions import UnauthorizedError
+
+from ..abc import AuthSource, _ensure_async
+
+
+class CookieAuth(AuthSource):
+    """Cookie-based authentication source.
+
+    Wraps :class:`fastapi.security.APIKeyCookie` for OpenAPI documentation.
+    Optionally signs the cookie with HMAC-SHA256 to provide stateless, tamper-
+    proof sessions without any database entry.
+
+    Args:
+        name: Cookie name.
+        validator: Sync or async callable that receives the cookie value
+            (plain, after signature verification when ``secret_key`` is set)
+            and any extra keyword arguments, and returns the authenticated
+            identity.
+        secret_key: When provided, the cookie is HMAC-SHA256 signed.
+            :meth:`set_cookie` embeds an expiry and signs the payload;
+            :meth:`extract` verifies the signature and expiry before handing
+            the plain value to the validator.  When ``None`` (default), the raw
+            cookie value is passed to the validator as-is.
+        ttl: Cookie lifetime in seconds (default 24 h).  Only used when
+            ``secret_key`` is set.
+        **kwargs: Extra keyword arguments forwarded to the validator on every
+            call (e.g. ``role=Role.ADMIN``).
+    """
+
+    def __init__(
+        self,
+        name: str,
+        validator: Callable[..., Any],
+        *,
+        secret_key: str | None = None,
+        ttl: int = 86400,
+        **kwargs: Any,
+    ) -> None:
+        self._name = name
+        self._validator = _ensure_async(validator)
+        self._secret_key = secret_key
+        self._ttl = ttl
+        self._kwargs = kwargs
+        self._scheme = APIKeyCookie(name=name, auto_error=False)
+
+        async def _call(
+            security_scopes: SecurityScopes,  # noqa: ARG001
+            value: Annotated[str | None, Depends(self._scheme)] = None,
+        ) -> Any:
+            if value is None:
+                raise UnauthorizedError()
+            plain = self._verify(value)
+            return await self._validator(plain, **self._kwargs)
+
+        self._call_fn = _call
+        self.__signature__ = inspect.signature(_call)
+
+    def _hmac(self, data: str) -> str:
+        if self._secret_key is None:
+            raise RuntimeError("_hmac called without secret_key configured")
+        return hmac.new(
+            self._secret_key.encode(), data.encode(), hashlib.sha256
+        ).hexdigest()
+
+    def _sign(self, value: str) -> str:
+        data = base64.urlsafe_b64encode(
+            json.dumps({"v": value, "exp": int(time.time()) + self._ttl}).encode()
+        ).decode()
+        return f"{data}.{self._hmac(data)}"
+
+    def _verify(self, cookie_value: str) -> str:
+        """Return the plain value, verifying HMAC + expiry when signed."""
+        if not self._secret_key:
+            return cookie_value
+
+        try:
+            data, sig = cookie_value.rsplit(".", 1)
+        except ValueError:
+            raise UnauthorizedError()
+
+        if not hmac.compare_digest(self._hmac(data), sig):
+            raise UnauthorizedError()
+
+        try:
+            payload = json.loads(base64.urlsafe_b64decode(data))
+            value: str = payload["v"]
+            exp: int = payload["exp"]
+        except Exception:
+            raise UnauthorizedError()
+
+        if exp < int(time.time()):
+            raise UnauthorizedError()
+
+        return value
+
+    async def extract(self, request: Request) -> str | None:
+        return request.cookies.get(self._name)
+
+    async def authenticate(self, credential: str) -> Any:
+        plain = self._verify(credential)
+        return await self._validator(plain, **self._kwargs)
+
+    def require(self, **kwargs: Any) -> "CookieAuth":
+        """Return a new instance with additional (or overriding) validator kwargs."""
+        return CookieAuth(
+            self._name,
+            self._validator,
+            secret_key=self._secret_key,
+            ttl=self._ttl,
+            **{**self._kwargs, **kwargs},
+        )
+
+    def set_cookie(self, response: Response, value: str) -> None:
+        """Attach the cookie to *response*, signing it when ``secret_key`` is set."""
+        cookie_value = self._sign(value) if self._secret_key else value
+        response.set_cookie(
+            self._name,
+            cookie_value,
+            httponly=True,
+            samesite="lax",
+            max_age=self._ttl,
+        )
+
+    def delete_cookie(self, response: Response) -> None:
+        """Clear the session cookie (logout)."""
+        response.delete_cookie(self._name, httponly=True, samesite="lax")
--- a/src/fastapi_toolsets/security/sources/header.py
+++ b/src/fastapi_toolsets/security/sources/header.py
@@ -0,0 +1,67 @@
+"""API key header authentication source."""
+
+import inspect
+from typing import Annotated, Any, Callable
+
+from fastapi import Depends, Request
+from fastapi.security import APIKeyHeader, SecurityScopes
+
+from fastapi_toolsets.exceptions import UnauthorizedError
+
+from ..abc import AuthSource, _ensure_async
+
+
+class APIKeyHeaderAuth(AuthSource):
+    """API key header authentication source.
+
+    Wraps :class:`fastapi.security.APIKeyHeader` for OpenAPI documentation.
+    The validator is called as ``await validator(api_key, **kwargs)``
+    where ``kwargs`` are the extra keyword arguments provided at instantiation.
+
+    Args:
+        name: HTTP header name that carries the API key (e.g. ``"X-API-Key"``).
+        validator: Sync or async callable that receives the API key and any
+            extra keyword arguments, and returns the authenticated identity.
+            Should raise :class:`~fastapi_toolsets.exceptions.UnauthorizedError`
+            on failure.
+        **kwargs: Extra keyword arguments forwarded to the validator on every
+            call (e.g. ``role=Role.ADMIN``).
+    """
+
+    def __init__(
+        self,
+        name: str,
+        validator: Callable[..., Any],
+        **kwargs: Any,
+    ) -> None:
+        self._name = name
+        self._validator = _ensure_async(validator)
+        self._kwargs = kwargs
+        self._scheme = APIKeyHeader(name=name, auto_error=False)
+
+        async def _call(
+            security_scopes: SecurityScopes,  # noqa: ARG001
+            api_key: Annotated[str | None, Depends(self._scheme)] = None,
+        ) -> Any:
+            if api_key is None:
+                raise UnauthorizedError()
+            return await self._validator(api_key, **self._kwargs)
+
+        self._call_fn = _call
+        self.__signature__ = inspect.signature(_call)
+
+    async def extract(self, request: Request) -> str | None:
+        """Extract the API key from the configured header."""
+        return request.headers.get(self._name) or None
+
+    async def authenticate(self, credential: str) -> Any:
+        """Validate a credential and return the identity."""
+        return await self._validator(credential, **self._kwargs)
+
+    def require(self, **kwargs: Any) -> "APIKeyHeaderAuth":
+        """Return a new instance with additional (or overriding) validator kwargs."""
+        return APIKeyHeaderAuth(
+            self._name,
+            self._validator,
+            **{**self._kwargs, **kwargs},
+        )
--- a/src/fastapi_toolsets/security/sources/multi.py
+++ b/src/fastapi_toolsets/security/sources/multi.py
@@ -0,0 +1,119 @@
+"""MultiAuth: combine multiple authentication sources into a single callable."""
+
+import inspect
+from typing import Any, cast
+
+from fastapi import Request
+from fastapi.security import SecurityScopes
+
+from fastapi_toolsets.exceptions import UnauthorizedError
+
+from ..abc import AuthSource
+
+
+class MultiAuth:
+    """Combine multiple authentication sources into a single callable.
+
+    Sources are tried in order; the first one whose
+    :meth:`~AuthSource.extract` returns a non-``None`` credential wins.
+    Its :meth:`~AuthSource.authenticate` is called and the result returned.
+
+    If a credential is found but the validator raises, the exception propagates
+    immediately — the remaining sources are **not** tried. This prevents
+    silent fallthrough on invalid credentials.
+
+    If no source provides a credential,
+    :class:`~fastapi_toolsets.exceptions.UnauthorizedError` is raised.
+
+    The :meth:`~AuthSource.extract` method of each source performs only
+    string matching (no I/O), so prefix-based dispatch is essentially free.
+
+    Any :class:`~AuthSource` subclass — including user-defined ones — can be
+    passed as a source.
+
+    Args:
+        *sources: Auth source instances to try in order.
+
+    Example::
+
+        user_bearer = BearerTokenAuth(verify_user, prefix="user_")
+        org_bearer  = BearerTokenAuth(verify_org,  prefix="org_")
+        cookie      = CookieAuth("session", verify_session)
+
+        multi = MultiAuth(user_bearer, org_bearer, cookie)
+
+        @app.get("/data")
+        async def data_route(user = Security(multi)):
+            return user
+
+        # Apply a shared requirement to all sources at once
+        @app.get("/admin")
+        async def admin_route(user = Security(multi.require(role=Role.ADMIN))):
+            return user
+    """
+
+    def __init__(self, *sources: AuthSource) -> None:
+        self._sources = sources
+
+        async def _call(
+            request: Request,
+            security_scopes: SecurityScopes,  # noqa: ARG001
+            **kwargs: Any,  # noqa: ARG001  — absorbs scheme values injected by FastAPI
+        ) -> Any:
+            for source in self._sources:
+                credential = await source.extract(request)
+                if credential is not None:
+                    return await source.authenticate(credential)
+            raise UnauthorizedError()
+
+        self._call_fn = _call
+
+        # Build a merged signature that includes the security-scheme Depends()
+        # parameters from every source so FastAPI registers them in OpenAPI docs.
+        seen: set[str] = {"request", "security_scopes"}
+        merged: list[inspect.Parameter] = [
+            inspect.Parameter(
+                "request",
+                inspect.Parameter.POSITIONAL_OR_KEYWORD,
+                annotation=Request,
+            ),
+            inspect.Parameter(
+                "security_scopes",
+                inspect.Parameter.POSITIONAL_OR_KEYWORD,
+                annotation=SecurityScopes,
+            ),
+        ]
+        for i, source in enumerate(sources):
+            for name, param in inspect.signature(source).parameters.items():
+                if name in seen:
+                    continue
+                merged.append(param.replace(name=f"_s{i}_{name}"))
+                seen.add(name)
+        self.__signature__ = inspect.Signature(merged, return_annotation=Any)
+
+    async def __call__(self, **kwargs: Any) -> Any:
+        return await self._call_fn(**kwargs)
+
+    def require(self, **kwargs: Any) -> "MultiAuth":
+        """Return a new :class:`MultiAuth` with kwargs forwarded to each source.
+
+        Calls ``.require(**kwargs)`` on every source that supports it. Sources
+        that do not implement ``.require()`` (e.g. custom :class:`~AuthSource`
+        subclasses) are passed through unchanged.
+
+        New kwargs are merged over each source's existing kwargs — new values
+        win on conflict::
+
+            multi = MultiAuth(bearer, cookie)
+
+            @app.get("/admin")
+            async def admin(user = Security(multi.require(role=Role.ADMIN))):
+                return user
+        """
+        new_sources = tuple(
+            cast(Any, source).require(**kwargs)
+            if hasattr(source, "require")
+            else source
+            for source in self._sources
+        )
+        return MultiAuth(*new_sources)
--- a/src/fastapi_toolsets/types.py
+++ b/src/fastapi_toolsets/types.py
@@ -15,7 +15,7 @@ ModelType = TypeVar("ModelType", bound=DeclarativeBase)
 SchemaType = TypeVar("SchemaType", bound=BaseModel)

 # CRUD type aliases
-JoinType = list[tuple[type[DeclarativeBase], Any]]
+JoinType = list[tuple[type[DeclarativeBase] | Any, Any]]
 M2MFieldType = Mapping[str, QueryableAttribute[Any]]
 OrderByClause = ColumnElement[Any] | QueryableAttribute[Any]

--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -139,6 +139,17 @@ class Post(Base):
    tags: Mapped[list[Tag]] = relationship(secondary=post_tags)


+class Transfer(Base):
+    """Test model with two FKs to the same table (users)."""
+
+    __tablename__ = "transfers"
+
+    id: Mapped[uuid.UUID] = mapped_column(Uuid, primary_key=True, default=uuid.uuid4)
+    amount: Mapped[str] = mapped_column(String(50))
+    sender_id: Mapped[uuid.UUID] = mapped_column(ForeignKey("users.id"))
+    receiver_id: Mapped[uuid.UUID] = mapped_column(ForeignKey("users.id"))
+
+
 class Article(Base):
    """Test article model with ARRAY and JSON columns."""

@@ -300,6 +311,23 @@ class ArticleRead(PydanticBase):
    labels: list[str]


+class TransferCreate(BaseModel):
+    """Schema for creating a transfer."""
+
+    id: uuid.UUID | None = None
+    amount: str
+    sender_id: uuid.UUID
+    receiver_id: uuid.UUID
+
+
+class TransferRead(PydanticBase):
+    """Schema for reading a transfer."""
+
+    id: uuid.UUID
+    amount: str
+
+
+TransferCrud = CrudFactory(Transfer)
 ArticleCrud = CrudFactory(Article)
 RoleCrud = CrudFactory(Role)
 RoleCursorCrud = CrudFactory(Role, cursor_column=Role.id)
--- a/tests/test_crud.py
+++ b/tests/test_crud.py
@@ -38,6 +38,10 @@ from .conftest import (
    Tag,
    TagCreate,
    TagCrud,
+    Transfer,
+    TransferCreate,
+    TransferCrud,
+    TransferRead,
    User,
    UserCreate,
    UserCrud,
@@ -1282,6 +1286,128 @@ class TestCrudJoins:
        assert users[0].username == "multi_join"


+class TestCrudAliasedJoins:
+    """Tests for CRUD operations with aliased joins (same table joined twice)."""
+
+    @pytest.mark.anyio
+    async def test_get_multi_with_aliased_joins(self, db_session: AsyncSession):
+        """Aliased joins allow joining the same table twice."""
+        from sqlalchemy.orm import aliased
+
+        alice = await UserCrud.create(
+            db_session, UserCreate(username="alice", email="alice@test.com")
+        )
+        bob = await UserCrud.create(
+            db_session, UserCreate(username="bob", email="bob@test.com")
+        )
+        await TransferCrud.create(
+            db_session,
+            TransferCreate(amount="100", sender_id=alice.id, receiver_id=bob.id),
+        )
+
+        Sender = aliased(User)
+        Receiver = aliased(User)
+
+        results = await TransferCrud.get_multi(
+            db_session,
+            joins=[
+                (Sender, Transfer.sender_id == Sender.id),
+                (Receiver, Transfer.receiver_id == Receiver.id),
+            ],
+            filters=[Sender.username == "alice", Receiver.username == "bob"],
+        )
+        assert len(results) == 1
+        assert results[0].amount == "100"
+
+    @pytest.mark.anyio
+    async def test_get_multi_aliased_no_match(self, db_session: AsyncSession):
+        """Aliased joins correctly filter out non-matching rows."""
+        from sqlalchemy.orm import aliased
+
+        alice = await UserCrud.create(
+            db_session, UserCreate(username="alice", email="alice@test.com")
+        )
+        bob = await UserCrud.create(
+            db_session, UserCreate(username="bob", email="bob@test.com")
+        )
+        await TransferCrud.create(
+            db_session,
+            TransferCreate(amount="100", sender_id=alice.id, receiver_id=bob.id),
+        )
+
+        Sender = aliased(User)
+        Receiver = aliased(User)
+
+        # bob is receiver, not sender — should return nothing
+        results = await TransferCrud.get_multi(
+            db_session,
+            joins=[
+                (Sender, Transfer.sender_id == Sender.id),
+                (Receiver, Transfer.receiver_id == Receiver.id),
+            ],
+            filters=[Sender.username == "bob", Receiver.username == "alice"],
+        )
+        assert len(results) == 0
+
+    @pytest.mark.anyio
+    async def test_paginate_with_aliased_joins(self, db_session: AsyncSession):
+        """Aliased joins work with offset_paginate."""
+        from sqlalchemy.orm import aliased
+
+        alice = await UserCrud.create(
+            db_session, UserCreate(username="alice", email="alice@test.com")
+        )
+        bob = await UserCrud.create(
+            db_session, UserCreate(username="bob", email="bob@test.com")
+        )
+        await TransferCrud.create(
+            db_session,
+            TransferCreate(amount="50", sender_id=alice.id, receiver_id=bob.id),
+        )
+        await TransferCrud.create(
+            db_session,
+            TransferCreate(amount="75", sender_id=bob.id, receiver_id=alice.id),
+        )
+
+        Sender = aliased(User)
+        result = await TransferCrud.offset_paginate(
+            db_session,
+            joins=[(Sender, Transfer.sender_id == Sender.id)],
+            filters=[Sender.username == "alice"],
+            schema=TransferRead,
+        )
+        assert result.pagination.total_count == 1
+        assert result.data[0].amount == "50"
+
+    @pytest.mark.anyio
+    async def test_count_with_aliased_join(self, db_session: AsyncSession):
+        """Aliased joins work with count."""
+        from sqlalchemy.orm import aliased
+
+        alice = await UserCrud.create(
+            db_session, UserCreate(username="alice", email="alice@test.com")
+        )
+        bob = await UserCrud.create(
+            db_session, UserCreate(username="bob", email="bob@test.com")
+        )
+        await TransferCrud.create(
+            db_session,
+            TransferCreate(amount="10", sender_id=alice.id, receiver_id=bob.id),
+        )
+        await TransferCrud.create(
+            db_session,
+            TransferCreate(amount="20", sender_id=alice.id, receiver_id=bob.id),
+        )
+
+        Sender = aliased(User)
+        count = await TransferCrud.count(
+            db_session,
+            joins=[(Sender, Transfer.sender_id == Sender.id)],
+            filters=[Sender.username == "alice"],
+        )
+        assert count == 2
+
+
 class TestCrudFactoryM2M:
    """Tests for CrudFactory with m2m_fields parameter."""

--- a/tests/test_crud_search.py
+++ b/tests/test_crud_search.py
@@ -971,7 +971,7 @@ class TestFilterBy:

    @pytest.mark.anyio
    async def test_bool_filter_false(self, db_session: AsyncSession):
-        """filter_by with a boolean False value correctly filters rows."""
+        """filter_by with a string 'false' value correctly filters rows."""
        UserBoolCrud = CrudFactory(User, facet_fields=[User.is_active])
        await UserCrud.create(
            db_session, UserCreate(username="alice", email="a@test.com", is_active=True)
@@ -982,7 +982,7 @@ class TestFilterBy:
        )

        result = await UserBoolCrud.offset_paginate(
-            db_session, filter_by={"is_active": False}, schema=UserRead
+            db_session, filter_by={"is_active": "false"}, schema=UserRead
        )

        assert isinstance(result.pagination, OffsetPagination)
@@ -991,7 +991,7 @@ class TestFilterBy:

    @pytest.mark.anyio
    async def test_bool_filter_true(self, db_session: AsyncSession):
-        """filter_by with a boolean True value correctly filters rows."""
+        """filter_by with a string 'true' value correctly filters rows."""
        UserBoolCrud = CrudFactory(User, facet_fields=[User.is_active])
        await UserCrud.create(
            db_session, UserCreate(username="alice", email="a@test.com", is_active=True)
@@ -1002,7 +1002,7 @@ class TestFilterBy:
        )

        result = await UserBoolCrud.offset_paginate(
-            db_session, filter_by={"is_active": True}, schema=UserRead
+            db_session, filter_by={"is_active": "true"}, schema=UserRead
        )

        assert isinstance(result.pagination, OffsetPagination)
@@ -1011,7 +1011,7 @@ class TestFilterBy:

    @pytest.mark.anyio
    async def test_bool_filter_list(self, db_session: AsyncSession):
-        """filter_by with a list of booleans produces an IN clause."""
+        """filter_by with a list of string booleans produces an IN clause."""
        UserBoolCrud = CrudFactory(User, facet_fields=[User.is_active])
        await UserCrud.create(
            db_session, UserCreate(username="alice", email="a@test.com", is_active=True)
@@ -1022,12 +1022,41 @@ class TestFilterBy:
        )

        result = await UserBoolCrud.offset_paginate(
-            db_session, filter_by={"is_active": [True, False]}, schema=UserRead
+            db_session, filter_by={"is_active": ["true", "false"]}, schema=UserRead
        )

        assert isinstance(result.pagination, OffsetPagination)
        assert result.pagination.total_count == 2

+    @pytest.mark.anyio
+    async def test_bool_filter_native_bool(self, db_session: AsyncSession):
+        """filter_by with a native Python bool passes through coercion."""
+        UserBoolCrud = CrudFactory(User, facet_fields=[User.is_active])
+        await UserCrud.create(
+            db_session, UserCreate(username="alice", email="a@test.com", is_active=True)
+        )
+
+        result = await UserBoolCrud.offset_paginate(
+            db_session, filter_by={"is_active": True}, schema=UserRead
+        )
+
+        assert isinstance(result.pagination, OffsetPagination)
+        assert result.pagination.total_count == 1
+
+    def test_bool_coerce_invalid_value(self):
+        """_coerce_bool raises ValueError for non-bool, non-string values."""
+        from fastapi_toolsets.crud.search import _coerce_bool
+
+        with pytest.raises(ValueError, match="Cannot coerce"):
+            _coerce_bool(42)
+
+    def test_bool_coerce_invalid_string(self):
+        """_coerce_bool raises ValueError for unrecognized string values."""
+        from fastapi_toolsets.crud.search import _coerce_bool
+
+        with pytest.raises(ValueError, match="Cannot coerce"):
+            _coerce_bool("maybe")
+
    @pytest.mark.anyio
    async def test_array_contains_single_value(self, db_session: AsyncSession):
        """filter_by on an ARRAY column with a scalar checks containment."""
--- a/tests/test_security.py
+++ b/tests/test_security.py
--- a/uv.lock
+++ b/uv.lock
@@ -81,6 +81,76 @@ wheels = [
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 ]

+[[package]]
+name = "bcrypt"
+version = "5.0.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/d4/36/3329e2518d70ad8e2e5817d5a4cac6bba05a47767ec416c7d020a965f408/bcrypt-5.0.0.tar.gz", hash = "sha256:f748f7c2d6fd375cc93d3fba7ef4a9e3a092421b8dbf34d8d4dc06be9492dfdd", size = 25386, upload-time = "2025-09-25T19:50:47.829Z" }
+wheels = [
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@@ -251,7 +321,7 @@ wheels = [

 [[package]]
 name = "fastapi-toolsets"
-version = "3.0.0"
+version = "3.0.1"
 source = { editable = "." }
 dependencies = [
    { name = "asyncpg" },
@@ -282,6 +352,7 @@ pytest = [

 [package.dev-dependencies]
 dev = [
+    { name = "bcrypt" },
    { name = "coverage" },
    { name = "fastapi-toolsets", extra = ["all"] },
    { name = "httpx" },
@@ -301,6 +372,9 @@ docs = [
    { name = "mkdocstrings-python" },
    { name = "zensical" },
 ]
+docs-src = [
+    { name = "bcrypt" },
+]
 tests = [
    { name = "coverage" },
    { name = "httpx" },
@@ -327,6 +401,7 @@ provides-extras = ["cli", "metrics", "pytest", "all"]

 [package.metadata.requires-dev]
 dev = [
+    { name = "bcrypt", specifier = ">=4.0.0" },
    { name = "coverage", specifier = ">=7.0.0" },
    { name = "fastapi-toolsets", extras = ["all"] },
    { name = "httpx", specifier = ">=0.25.0" },
@@ -346,6 +421,7 @@ docs = [
    { name = "mkdocstrings-python", specifier = ">=2.0.2" },
    { name = "zensical", specifier = ">=0.0.30" },
 ]
+docs-src = [{ name = "bcrypt", specifier = ">=4.0.0" }]
 tests = [
    { name = "coverage", specifier = ">=7.0.0" },
    { name = "httpx", specifier = ">=0.25.0" },
--- a/zensical.toml
+++ b/zensical.toml
@@ -2,10 +2,15 @@
 site_name = "FastAPI Toolsets"
 site_description = "Production-ready utilities for FastAPI applications."
 site_author = "d3vyce"
-site_url = "https://fastapi-toolsets.d3vyce.fr"
+site_url = "https://fastapi-toolsets.d3vyce.fr/"
 copyright = "Copyright &copy; 2026 d3vyce"
 repo_url = "https://github.com/d3vyce/fastapi-toolsets"

+[project.extra.version]
+provider = "mike"
+default = "stable"
+alias = true
+
 [project.theme]
 custom_dir = "docs/overrides"
 language = "en"
Author	SHA1	Message	Date
d3vyce	f1bd4e42d7	fix: cleanup + simplify	2026-04-03 19:19:54 +02:00
d3vyce	4c8448629d	docs: add authentication example	2026-04-03 19:19:54 +02:00
d3vyce	e3c3f5f8a3	feat(security): add oauth helpers	2026-04-03 19:19:54 +02:00
d3vyce	c785b4c1ef	feat: add security module	2026-04-03 19:19:54 +02:00
d3vyce	9b74f162ab	Version 3.0.1	2026-04-03 05:44:10 -04:00
d3vyce	ab125c6ea1	docs: rework versioning to keep latest feature version per major (#223 )	2026-04-03 11:43:36 +02:00
d3vyce	e388e26858	fix: widen JoinType to accept aliased and polymorphic targets (#221 )	2026-04-02 22:58:52 +02:00
d3vyce	04da241294	fix: coerce string values to bool for Boolean facet field filtering (#219 )	2026-04-02 22:58:07 +02:00