Alamofire .responseJSON doesn't work with JSON response - ios

Question

I'm using alamofire to upload an image.
This is sign up API where you can sign up with your profile photo (this is what I have to upload)
So my code is this (I will replace print(JSON) with another code; this is just for testing what's wrong)
func makeUploadRequest(url: String?) {
let imageData = NSData(data: UIImageJPEGRepresentation(self.userImage.image!, 1)!)
Alamofire.upload(.POST, url!, headers: ["Content-Type":"application/json"], multipartFormData: { multipartFormData in
multipartFormData.appendBodyPart(data: imageData, name: "image_file_1")
}, encodingCompletion: {
encodingResult in
switch encodingResult {
case .Success(let upload, _, _):
upload.responseJSON { (JSON) in
print(JSON)
}
case .Failure(let encodingError):
//Show Alert in UI
print(encodingError)
}
})
}
but when I run this code, I come across with this message:
FAILURE: Error Domain=NSCocoaErrorDomain Code=3840 "Invalid value around
character 0." UserInfo={NSDebugDescription=Invalid value around character 0.}
I know why I get this message, it's because the response is not in JSON format.
But the response is actually JSON
{
result: "success",
msg: "",
data: {...}
}
When I test the API with URL, it works just fine.
When I used .responseString instead of .responseJSON: it said something about ASP.NET
.response:
(Optional(<NSMutableURLRequest: 0x7f8353217d50> { URL: url }),
Optional(<NSHTTPURLResponse: 0x7f8353099040> { URL: url }
{ status code: 500, headers {
"Cache-Control" = private;
"Content-Length" = 5136;
"Content-Type" = "text/html; charset=utf-8";
Date = "Tue, 26 Apr 2016 06:09:03 GMT";
Server = "Microsoft-IIS/7.5";
"X-AspNet-Version" = "2.0.50727";
"X-Powered-By" = "ASP.NET";
} }), Optional(<3c68746d ... 2e2d2d3e>), nil)
Any help? Thanks in advance!

Answer 1

Try to replace Success block :-
case .Success(let upload, _, _):
upload.responseJSON { response in
debugPrint(response)
AppHelper.hideLoadingSpinner()
if response.result.value is NSNull
{
print("Response nil")
}
else
{
if let JSON = response.result.value {
var mydict = NSMutableDictionary()
mydict = JSON as! NSMutableDictionary
if (self.delegate != nil){
print("response:--------------------\n %#",mydict)
}
}
else
{
print("response not converted to JSON")
}
}
upload.response(completionHandler: { (request, response, data, error) -> Void in
NSLog("upload.response : data : %#", String(data: data!, encoding: NSUTF8StringEncoding)!)
NSLog("upload.response : response : %#", response!)
})
}

Answer 2

Check your result if it's a failure or success before getting the value. E.g.:
switch response.result {
case .Success(let value):
print("Value: \(value)")
break
case .Failure(let error):
print("Error: \(error)")
break
}