Hey everyone! I'm currently building a backend project using FastAPI and Python 3.13.1, and I could really use some feedback on my project's structure. I've laid out a general design of my current project, which includes components like alembic for DB migrations, the main application package with my API layer, common utilities, and more. I'm worried that my current flat structure may cause scalability issues as I continue adding new modules. I'm even considering a more modular layout, similar to Django, where each module has its own space to manage routes, controllers, actions, schemas, and models. This looks like it could improve clarity and make extensions easier, but I need to address how to manage communication between these modules without creating circular dependencies. Any insights on managing cross-module communication or establishing clean downward dependencies would be greatly appreciated!
2 Answers
I’m on board with the module-based approach as well, especially if your modules have distinct responsibilities. It offers great flexibility! However, if you find that modules A and B frequently need to interact, you could consider merging them into a single module. That might simplify things if their functionality is tightly coupled. The key is to evaluate whether the benefits of separation are worth the complexities of maintaining cross-module communication.
Your idea for a new module-based structure seems solid! I think having clear boundaries can really streamline development. For cross-module communication, it might help to use design patterns like events or services that allow modules to communicate without direct dependencies. That way, you can reduce the chances of circular imports while keeping concerns separated. Just be sure to document how modules interact, it'll save you some headaches later!
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