Public Flask challenges shared by the EraCode community. These pages are teasers — skill maintenance starts when you attempt the full problem inside EraCode.
Practice Flask context-based dependency injection by attaching a request-scoped service to the application context and retrieving it inside a route.
Practice a Flask idiom: keeping error handling scoped to a Blueprint instead of global app-wide handlers.
Practice a small but common Flask core API detail: returning an empty response with the correct status code (and no accidental body).