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I'll be honest - I'm having trouble parsing what having a '1:1 relationship between reduced state and components' actually means.
The most common "state" in our application is the result of a GET request (for example, you need some data from the server), and an accompanying loading/loaded/error state. Most (presentational) components will load its needed data from a container component (through connect(), or other higher order components we developed). So for example, a given `user` object, could have its data in a chat component, or an analytics view, or a settings profile. The reducers aren't generally concerned with how the data is used, just that its available to anyone who asks. As far as localized state goes (like a form), we took a page from reduxForm (and we use reduxForm) - if there were times we needed to use setState a lot (for example, we had a query builder and chart components), we built a higher order component (like connect), where you would pass the props you need, and that component would figure out how to query it and make it available in the redux state. Again this meant you could create a "query object" from one component, that was theoretically available to any other component (as part of the Redux tree), if they asked. All in all, I never considered any sort of 1:1 relationship between state and components. I had state, and the components decided what state they needed and rendered themselves appropriately. This was a fairly complex SPA that had real time chat, analytics and CRM-like features, there were 100s of components. Our codebase was far more robust from the Angular version we had rewritten it from a year ago (a component crashing didn't bring down the whole app), and the concerns for every component tended to be self-discoverable (we were able to hire interns to start hacking on it within 2-3 days, after they wrapped their head around redux). I'll admit it took me sometime to understand the benefits of Redux, and there was a lot of ugly boilerplate until we started using higher order components, however "brittle" and "messy" is the last words I'd use to describe the codebase. |