React/Flux way to handle permission sensitive actions with login flows

Question

I have been playing with React/Flux, and I am having trouble wrapping my head around the \'Flux Way\' for handling permission-sensitive actions.

Overarching question: W

Answer 1

The simplest would be just asking SessionStore if there's a session.

 case CommentConstants.ADD_COMMENT:
    if (SessionStore.getUser()) {
       createComment(action.data);
    }
    break;

Of course, this just saves you a server request. The behavior shouldn't be any different than always calling createComment(action.data).

Is this a case where the payload should be passed into ensureCurrentUser, and then into the route handler for /login? What is the Flux way of handling these types of flows?

For this, you might want to have an event emitter that emits a 'login' event.

 case CommentConstants.ADD_COMMENT:
    if (SessionStore.getUser()) {
       createComment(action.data);
    }
    else {
       someEventEmitter.one('login', function(){
           createComment(action.data);
       });
       someEventEmitter.emit('loginRequired');
    }
    break;

And when loginRequired is emitted, if there isn't a user logged in, the login view would be presented.