Decoupled User Management in Python
Hands-On tests with 'UserHarbor' and IBM Bob: A Modular Approach to Python User Authentication and Permissions Introduction When evaluating open-source libraries for core application infrastructure - such as authentication, session management, and fine-grained Role-Based Access Control (RBAC) - getting hands-on with a complete reference application is invaluable. This is especially true for libraries aiming to be framework-agnostic, promising flexibility but requiring more explicit wiring. Recently, I wanted to explore UserHarbor ( github.com/userharbor/userharbor ), a lightweight Python user-management library designed without direct coupling to any web framework or database toolkit. Rather than manually bootstrapping a new project, setting up the SQLite database, and writing boilerplate code to explore every edge of the library, I used IBM Bob , to scaffold and implement an end-to-end reference demonstration integrated with FastAPI , SQLAlchemy for persistence, and SMTP (or a local console fallback) for transactional emails. The goal was to rapidly test UserHarbor's entire feature lifecycle - registration, email verification, session tokens, optional authentication, RBAC guards, password resets, and account deletion, which I personally find really useful. These capacities could be implemented in many applications and ease the phase of user registration, email validation etc… This post details the architecture built, highlights the key implementation logic, and illustrates how easily a decoupled core can be integrated into a modern web stack. UserHabor (from official GitHub repostory) Image from official project's repository Project status: UserHarbor is currently in an early stage of development. The API may change frequently. The library is not ready for production use yet . UserHarbor is a framework-agnostic Python library for user account management. Its goal is to provide a simple, stable, and framework-independent interface for common user-related operations: