Mutations

Defining a mutation

class UpdateMessageMutation extends Mutation {
  @override
  String get name => 'changeMessage'; // if you don't override it will be the name of class: 'UpdateMessageMutation' 

  @override
  void call(Map<String, dynamic> state, payload) {
    state['message'] = payload;
  }
}

All mutations should be sync, if you need to perform async operations you must use an action

Registering the mutation on Store

class MyStore extends Store {
  MyStore() : super(
    Module(
      state: {
        'message': 'A message',
      },
      mutations: [
        UpdateMessageMutation(),
      ],
    ),
  );
}

Commiting a change

store.commit('/changeMessage', 'New message');