title: Is it possible to use AFNetworking in a TodayExtension?
body: <p>I'm using <code>AFNetworking</code> inside my iOS App without any problem. But now, I need to perform some API calls to my backend from my TodayExtension.</p>
  
  <p>When I have tried to add any kind of <code>AFNetworking</code> class to my TodayExtension target, the compiler crash.</p>
  
  <pre><code>Undefined symbols for architecture armv7:
    "_AFNetworkingErrorDomain", referenced from:
        -[AFHTTPRequestOperation error] in AFHTTPRequestOperation.o
    "_AFNetworkingOperationFailingURLResponseErrorKey", referenced from:
        -[AFHTTPRequestOperation error] in AFHTTPRequestOperation.o
    "_AFNetworkingOperationFailingURLRequestErrorKey", referenced from:
        -[AFHTTPRequestOperation error] in AFHTTPRequestOperation.o
    "_OBJC_METACLASS_$_AFURLConnectionOperation", referenced from:
        _OBJC_METACLASS_$_AFHTTPRequestOperation in AFHTTPRequestOperation.o
    "_OBJC_CLASS_$_AFURLConnectionOperation", referenced from:
        _OBJC_CLASS_$_AFHTTPRequestOperation in AFHTTPRequestOperation.o
  ld: symbol(s) not found for architecture armv7
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  </code></pre>
  
  <p>Is there any way to use it? What is the best way to call my API from TodayExtension? Maybe using <code>NSURLSession</code>?</p>