var app = angular.module('myDI', ['ng']);

​

app.provider('greeting',function(){

  var greetingToUser="Hello, ";

  this.setGreeting=function(greet){

    greetingToUser=greet;

  }

  this.$get = ['$http', '$q', function($http, $q){

    return function(name) {

      console.log(greetingToUser + name);

    };

  }];

});

​

​

app.config(['greetingProvider',function(greetingProvider){

  greetingProvider.setGreeting("welcome to you ");

}])

​

​

var $injector = angular.injector(['myDI']);

var greeting = $injector.get('greeting');

greeting("sfgsdfg");

​