bitovi/canjs

import { connect, restModel, QueryLogic, ObservableObject } from "//unpkg.com/can@6/core.mjs";

class Todo extends ObservableObject {
  static props = {
    id: {
      identity: true,
      type: Number
    },
    userId: Number,
    title: String,
    completed: Boolean,
    lastAccessedDate: String,
  }
}

const updateLastAccessed = connect.behavior(
    'update-last-accessed',
    (previousBehavior) => {
        function updateLastAccessed(instance) {
            instance.lastAccessedDate = new Date().toISOString();
            instance.save().then(() => console.log('Updated last accessed time for: ', instance));
        };

        return {
            get() {
                return previousBehavior.get.apply(this, arguments).then((instance) => {
                    updateLastAccessed(instance);
                    return instance;
                });
            },
            getList() {
                return previousBehavior.getList.apply(this, arguments).then((list) => {
                    list.forEach((instance) => updateLastAccessed(instance));
                    return list;
                });
            },
        };
    }
);

const connectionOptions = {
    url: 'https://jsonplaceholder.typicode.com/todos/',
    queryLogic: new QueryLogic(Todo),
    ObjectType: Todo,
};

const connection = updateLastAccessed(restModel(connectionOptions));

connection.getList({}).then(data =>
    console.log(`Loaded ${data.length} todos.`)
);