A way to reduce actions boilerplate

Here's the current actions boilerplate:

``` js
taskAdd = (name) => ({
name: 'TASK_ADD',
data: {
name
}
});

taskDone = (id) => ({
name: 'TASK_DONE',
data: {
id
}
});
```

It suffers from these problems:

1) Repetitive typing where you repeat `name` and `data` for each action and then also repeat the list of parameters, **twice** for each action.
2) Action names are not defined as reusable/importable constants (therefore you can't enforce compile-time checks on them).
3) (Minor) For some reason you're not using `const` but instead `let` the variables at top of the file. I guess it's some legacy/habit issue?

Have you given any thought on these problems before? I like the CRC/CCA approach in general but applying it directly means sacrificing the above. For example, with `redux-actions` I can:

``` js
// Identity action creator, no boilerplate at all, clean and DRY.
export const chatMessageSent = createAction('CHAT_MESSAGE_SENT');
```

and then (in a redux saga):

``` js
import {chatMessageSent} from '.../actions'

yield takeEvery(chatMessageSent.toString(), function* ({payload: {contact, text}}) {
// ...
});
```

and I get no headache about possible typos in the action names.

Of course I can come up with a poor man ad-hoc shortcut, something like:

``` js
function createAction(name) {
const action = (data, metadata) => ({name, data, metadata});
action.name = name;
return action;
}
...
chatMessageSent = createAction('CHAT_MESSAGE_SENT');
...
yield takeEvery(chatMessageSent.name, function* ({data: {contact, text}}) {
// ...
});
```

but a proper well-thought library when you still can override the action creator logic, specify list of fields etc. would be better.

And then again, in `redux-immutable` you need to use these ALL_CAPS constants (which you can't import!) as the key names in reducers, while in `redux-actions` they provide a handy shortcut with compile-time check (something your `combineReducers` could also benefit from):

``` js
const reducer = handleActions({
[selectContact]: (state, {payload: {id}}) => ({
...state,
selectedId: id
}),
```

I know this is not a proper ticket and more of a rant, but anyway. 🙃

The issue does not name any files or tests. Start by reviewing the example's existing action creators and reducers, including the redux-saga and combineReducers usage described here. The requested design and completion criteria are not defined, so a maintainer decision is needed before implementation can begin.

Written by the indexing model from the issue text.