ng-services

Angular data services for apps that don't want to be Angular

Loads list of Angular services from a bundle to run inside another framework. For example, let us load an async addition service that we have implemented in Angular from some other application

<!-- if Angular is not loaded, it will be automatically -->
<script src="ng-services.js"></script>

// ng-async-addition.js
angular.module('AsyncCalculator', [])
  .service('AsyncAddition', function ($q) {
    return function addition(a, b) {
      return $q.when(a + b);
    }
  });

// your application code
ngServices({
  src: 'ng-async-addition.js',
  module: 'AsyncCalculator'
}).then(function (AsyncAddition) {
  AsyncAddition(2, 3)
    .then(function (sum) {
      console.log('async 2 + 3 =', sum);
    });
});

You can list services to be injected explicitly to avoid minification problems

ngServices({
  src: 'ng-async-addition.js',
  module: 'AsyncCalculator',
  inject: ['AsyncAddition']
}).then(function (injected) {
  injected.AsyncAddition(2, 3)
    .then(function (sum) {
      console.log('async 2 + 3 =', sum);
    });
});

Example: ticking clock

live demo.

The angular service will emit an event every second with formatted time. The rendering application will use virtual-dom library.

// ng-clock.js
angular.module('Clock', [])
  .service('Clock', function ($interval, $rootScope, $filter) {
    var date = $filter('date');
    $interval(function () {
      $rootScope.$emit('tick', date(new Date(), 'mediumTime'));
    }, 1000);
    return $rootScope;
  });

Let us load it from the main application. To see the rest of the rendering code, take a look at the ticking clock example.

// application using virtual-dom
function renderAll(time) {
  var newView = render(time);
  var patches = virtualDom.diff(view, newView);
  rootNode = virtualDom.patch(rootNode, patches);
  view = newView;
}
ngServices({
  src: 'ng-clock.js',
  module: 'Clock',
}).then(function (Clock) {
  Clock.$on('tick', function (e, time) {
    renderAll(time);
  });
});

More examples

• ticking clock
• single injected value
• async service using $q
• multiple services at once
• rendering using virtual-dom
• dependency names shortcut

Small print

Author: Gleb Bahmutov © 2015

• @bahmutov
• glebbahmutov.com
• blog

License: MIT - do anything with the code, but don't blame me if it does not work.

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Support: if you find any problems with this module, email / tweet / open issue on Github

MIT License

Copyright (c) 2015 Gleb Bahmutov

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.