A simple REST-Style API

rest-style.task.js

const Guid = require('guid');
const _ = require('lodash');

this.state.todos = state.todos || {};
this.GET = get;
this.POST = add;
this.PUT = set;
this.delete = remove;

this[this.req.method](this.req.params.id, this.req.body);

function get(id){
  if(id && !this.state.todos[id]) return this.res.status(404).end();
  if(id && this.state.todos[id]) return this.res.send(this.state.todos[id]);
  
  this.res.send(_.toArray(this.state.todos));
}

function add(id, todo){
  todo.id = id || Guid.create();
  this.state.todos[todo.id] = todo;
  this.res.status(201).send(todo);
}

function set(id, todo){
  if(!this.state.todos[id]) {
    return this.res.status(404).end();
  }
  
  this.state.todos[id] = todo;
  this.res.status(202).send(todo);
}

function remove(id){
  if(id && !this.state.todos[id]) {
    return this.res.status(404).end();
  }
  
  if(!id){
    this.state.todos = {};
    return this.res.status(204).end();
  }
  
  delete this.state.todos[id];
  this.res.status(204).end();
}