Async reducers

[ghost]

This is an attempt to solve the need to add or remove dinamically reducers to the store created with ng-redux.

The idea is very simple:

• at config time we create the store with some "fixed" reducers that our application will always use
• when the store is created, ng-redux adds to the store a new property called asyncReducers, which will store the reducers that we add or remove on execution time
• we also add two methods to the created store: addReducer and removeReducer which adds or removes a reducer from the asyncReducers property, and replaces the store reducer with the combination of the "fixed" and "async" reducers.
• addReducer gets two parameters: the name of the reducer to be appended and the reducer itself
• removeReducer gets only one parameter: the name of the reducer to be removed

There's a "small" problem. To get this solution to work, we need to pass and object to createStore (which will be stored also on the store object and combined with the async reducers) and not with a function, because we can't combine reducers from combined ones (at least with the standard redux combineReducers function), and we need to combineReducers each time we add or remove a new reducer.

This could be used to solve the issue #75

Hope that this helps somebody, and you find it useful

[kaidjohnson]

This solution looks promising. It follows the recommendations discussed here reduxjs/redux#37 and demonstrated here https://gist.github.com/gaearon/0a2213881b5d53973514

[sachinnair90]

@wbuchwalter any plan to get this merged, I need this feature to be implemented in my app? Or is there an easier way around due to which this is on hold?

[AntJanus]

@sachinnair90 I'm gonna go ahead and close this branch since it's out of scope. ng-redux, in my opinion, is meant to provide as close to original redux functionality as possible (and react-redux, I suppose) while leveraging AngularJS's power.

As far as dynamically loading/async loading Reducers, you have a few options:

1. Redux has a built-in replaceReducer API.
2. Another user on this repo mentioned the ng-redux-injector which can do what you want it to do
3. I wrote a quick enhancer on another PR Dynamic Load Reducers #121 I wrote a much bigger version of this as a wrapper for Redux but I can rewrite this as an enhancer if there's interest.