deepsel 0.14.1

Database utilities, ORM framework, and authentication for SQLAlchemy, FastAPI Python applications

Deepsel

A full-featured Python framework for building data-driven applications with FastAPI and SQLAlchemy. Provides an ORM layer with built-in CRUD, multi-tenancy, authentication, automatic API generation (REST + GraphQL), and more.

Packages

• deepsel.orm - Declarative ORM with base models, mixins, and advanced query support
• deepsel.sqlalchemy - Automatic database schema migration and management
• deepsel.auth - Authentication (JWT, OAuth, SAML, 2FA)
• deepsel.utils - CRUD routers, schema generation, GraphQL, storage clients, email, encryption

Installation

pip install deepsel

Optional Dependencies

pip install deepsel[auth]       # JWT, password hashing, 2FA
pip install deepsel[oauth]      # Google OAuth
pip install deepsel[saml]       # SAML authentication
pip install deepsel[s3]         # AWS S3 storage
pip install deepsel[azure]      # Azure Blob storage
pip install deepsel[storage]    # Both S3 and Azure
pip install deepsel[graphql]    # GraphQL support via Strawberry

Quick Start

Define Models

from deepsel import BaseModel
from sqlalchemy import Column, String

class User(BaseModel):
    __tablename__ = "users"

    name = Column(String, nullable=False)
    email = Column(String, unique=True, nullable=False)

BaseModel automatically provides created_at, updated_at, string_id, active, and system fields, plus built-in query methods for searching, filtering, and pagination.

Automatic CRUD API

from deepsel import CRUDRouter, generate_CRUD_schemas, configure_crud_router

# Configure dependencies
configure_crud_router(db_session_factory=get_db, auth_dependency=get_current_user)

# Generate Pydantic schemas from your ORM model
schemas = generate_CRUD_schemas(User)

# Create a router with full CRUD endpoints
router = CRUDRouter(model=User, schemas=schemas)
app.include_router(router)

This gives you paginated list, search, create, read, update, and bulk delete endpoints out of the box.

Authentication

from deepsel import AuthService

auth = AuthService(secret_key="your-secret-key")

# JWT tokens
token = auth.create_token(user_id=123)
payload = auth.decode_token(token)

# Password hashing
hashed = auth.hash_password("my_password")

Also supports Google OAuth (GoogleOAuthService), SAML (SamlService), and 2FA with recovery codes.

Database Migrations

from deepsel import DatabaseManager

db_manager = DatabaseManager(
    sqlalchemy_declarative_base=Base,
    db_session_factory=get_db,
    models_pool={"users": User, "products": Product}
)

Automatically detects and applies schema changes: new tables/columns, type changes, foreign keys, indexes, enums, and composite keys.

GraphQL

from deepsel import init_graphql, AutoGraphQLFactory

factory = AutoGraphQLFactory(models=[User, Product])
schema = factory.create_auto_schema()
init_graphql(app, schema)

ORM Mixins

Extend your models with feature-rich mixins:

Mixin	Description
UserMixin	User authentication, roles, permissions, email
OrganizationMixin	Multi-tenant organization management
AttachmentMixin	File uploads with pluggable storage (S3, Azure, local)
EmailTemplateMixin	Email template management
CronMixin	Scheduled task execution
ActivityMixin	Field-level change tracking and audit logs

Query & Search

Built-in support for complex queries with AND/OR logic, operators (eq, ne, in_, contains, between, like, ilike, gt, lt, etc.), permission scoping (own, org, all), and ordering.

Utilities

• Storage: S3 and Azure Blob clients with filename sanitization
• Email: Rate-limited email sending via fastapi-mail
• Encryption: encrypt()/decrypt(), password hashing, recovery code generation
• App helpers: install_routers(), install_seed_data(), import_csv_data(), lifecycle hooks

Supported Databases

• PostgreSQL (primary support)

Development

make install-dev    # Install with dev dependencies
make test           # Run tests with coverage
make lint           # Run flake8
make security       # Run bandit security checks
make format         # Format with black
make prepush        # Run all checks before pushing
make build          # Build distribution packages

License

MIT License - see LICENSE file for details.