使用$ http的方法装饰服务

Question

I'm trying to decorate a service with another method. The problem is that method uses $http which I can't inject into the angular.config block because it hasn't been initialised yet.

I thought I could get around this by using $injector as this would only run when the method I add gets called, but this results in the error:

Error: [$injector:unpr] Unknown provider: $http

Here's an example of what I am trying to do:

angular.module('someModule', [])

.config(($provide, $injector)->  
  $provide.decorator('someService', ($delegate)->   
    $delegate.newMethod = ()->
      $http = $injector.get('$http')
      $http.get('someURL')
    return $delegate
  )
)

Later on, only when I call someService.newMethod() do I get the error mentioned above.

Is there any way to do what I'm trying to do?

Answer 1

Apparently the $injector needs to be injected to the decorator as well, so this will fix it:

angular.module('someModule', [])

.config(($provide, $injector)->  
  $provide.decorator('someService', ($delegate, $injector)->   
    $delegate.newMethod = ()->
      $http = $injector.get('$http')
      $http.get('someURL')
    return $delegate
  )
)