Map.get(params)

.get() is added to the configured Map type. Use it to get a single instance by the identity keys of the Map type.

// import connection plugins
var canMap = require("can-connect/can/map/map");
var constructor = require("can-connect/constructor/constructor");
var dataUrl = require("can-connect/data/url/url");

// define connection type
var Todo = DefineMap.extend({
  id: "number",
  complete: "boolean",
  name: "string"
});

// create connection
connect([canMap, constructor, dataUrl],{
  Map: Todo,
  url: "/todos"
})

// retrieve instance
Todo.get({id: 5}).then(function(todo){
  ...
});

var firstCompleteTodo = Todo.getList({
  filter: {complete: false},
  page: {start: 0, end: 0}
}).then(function(list){
  return list.length ? list[0] : Promise.reject({message: "reject message"});
});