import mongoose, {Schema} from 'mongoose';

const UserSchema = new Schema({
  name: String,
  password: String,
  role: String
});

UserSchema.methods.canDoSomeBusinessLogic = function(){
  return this.name === 'Jeff';
};

UserSchema.methods.isAdmin = function(){
  return this.role === 'admin';
};

# JS Class definition - classes/user.js
export default class User {
    constructor(data = {}){
      Object.assign(this,data);
    }

    canDoSomeBusinessLogic(){
      return this.name === 'Jeff';
    };

    isAdmin(){
      return this.role === 'admin';
    }
}

# Server - api/controllers/user.js
import UserClass from
User.findById(1,function(err,user){
    let user = new UserClass(user.toJSON();
});

# Client - reducers/User.js
export default function authReducer(state = null, action) {
  switch (action.type) {
    case GET_USER:
      return new UserClass(action.response.data);
  }
}

# Client - containers/Page.jsx
import {connect} from 'react-redux';

@connect(state => ({user: state.user}))
export default class Page extends React.Component {
    render(){
      if(this.props.user.isAdmin()){
        // Some admin
      }
    }
}

# helpers/user.js
export function isAdmin(user){
    return user.role === 'admin';
}