How to inject dependencies into a provider using Angularjs?

Question

Is it possible to do DI in a provider method?

In this example

angular.module(\'greet\',[])
.provider(\'greeter\',function() {

  this.$get=function()         


        

Answer 1

You can inject constants and other providers into a provider. Not services or factories - with one exception. It seems that you can inject the $injector service into a provider - at least, you can in AngularJS 1.3.16.

.provider('foo', ['$injector', function ($injector) {
  var messagePrefix = $injector.get('msgPrefix');
  this.message = '';

  this.$get = function() {
    var that = this;
    return function() {
      return messagePrefix + that.message;
    }
  };
}])

You can use the injector outside the $get method, but you still can't get services from it at configure time.

See here for a demo.