AngularJS module to provide CQRS integration on clientside
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Failed to load latest commit information.
dist #6 angular.CQRS will now pass the whole event into the registered den… Oct 15, 2014
eslintrules [TENAC-21] make lintspaces happy by adding missing newlines at EOF Jun 26, 2014
src/cqrs #6 angular.CQRS will now pass the whole event into the registered den… Oct 15, 2014
test #6 angular.CQRS will now pass the whole event into the registered den… Oct 15, 2014
.bowerrc [TENAC-21] added infrastructure dependencies: mocha, karma, grunt, es… Jun 19, 2014
.eslintrc [TENAC-21] introduce "sendCommand"-callbacks Jul 4, 2014
.eslintrctest [TENAC-21] introduce "sendCommand"-callbacks Jul 4, 2014
.gitignore [TENAC-21] add dist folder Jul 7, 2014
.travis.yml [TENAC-21] remove obsolete npm install. travis ci will invoke this au… Jul 4, 2014
Gruntfile.js [TENAC-21] minor cleanup Jul 2, 2014
bower.json #4 fix version Sep 19, 2014
karma-integration.conf.js [TENAC-21] added eventParser and queryParser functions. Command paylo… Jul 3, 2014
karma.conf.js [TENAC-21] introduce "sendCommand"-callbacks Jul 4, 2014
package.json #4 fix version Sep 19, 2014 [TENAC-21] add link to deployed api documentation (on gh-pages branch) Jul 7, 2014


Project goal is to simplify the usage of the CQRS Pattern under AngularJS by providing needed infrastructure. This module is inspired by

Tested with AngularJS 1.2.18


Branch Status
master Build Status
develop Build Status


API documentation


To use CQRS on the clientside we will need to push events to the browser. You can achieve this via websockets, flash, long polling or any other technique around.


In order to use angular.CQRS, add it to the list of dependencies of your module.

var module = angular.module('basicExample', ['ngCQRS']);

angular.CQRS will send queries to the server via HTTP GET to fetch data. You can configure how the URLS for these GET requests should be composed.

module.config(function (CQRSProvider) { 

  CQRSProvider.setUrlFactory(function (viewModelName, parameters) {
    return '' + viewModelName + CQRSProvider.toUrlGETParameterString(parameters);


Wire up commands and events to/from sever

In order to connect angular.CQRS to your websocket / long polling solution, wire up commands and events.

var mySocket = io();

// pass in events from your socket
mySocket.on('events', function (data) {

// pass commands to your socket
CQRS.onCommand(function (data) {
  mySocket.emit('commands', data);

In order to update your view data on an incoming server event, we use denormalization functions.

// Tell angular.CQRS how to denormalize (or merge) "moved" events on the aggregate type "person" for the "profile" ModelView.
      viewModelName: 'myProfile',
      aggregateType: 'person',
      eventName: 'move'
    }, function (oldProfile, eventPayload) {
      if ( === {
          oldProfile.person.address = eventPayload.address;

    return oldProfile;

Usage in your controllers and services

module.controller('MainController', function ($scope, StoreService, CQRS) {

    // create a store instance for your current controller scope.
    // this is needed in order to correctly cleanup any event handlers after the angular scope is destroyed.
    var store = StoreService.createForController($scope);

    // send a query to the server, requesting the view 'profile'
    // angular.CQRS will invoke your callback on the first response and on every subsequent update from the server
    // the profileData you get will be denormalized by the denormalization function you registered
    store.for('profile').do(function (profileData) {
        $scope.profile = profileData;

    $scope.onChangeProfile = function () {

        // Send a "move" command for the aggregate "person" to the server
         command: 'move',
         aggregateType: 'person',
         payload: {
           street: 'new Streetname',