Simple wolkenkit writeModel.

board.js

const initialState = {
  title: undefined,
  slug: undefined
};

const commands = {
  mount (board, command) {
    if (command.data.title === undefined) {
      command.reject('Title is missing.');
      
      return;
    }

    board.events.publish('mounted', {
      title: command.data.title,
      slug: slugify(command.data.title)
    });
  }
};

const events = {
  mounted (board, command) {
    board.setState({
      title: command.data.title,
      slug: command.data.slug
   })
  }
};