Adding headers to Alamofire multiPartFormData upload

Question

Been having difficulties trying to figure this one out. Post requests using Alamofire (4.4.0) and my headers work fine for most things, however this time I need to send up a dictionary of Strings, as well as a video.

The video is recorded via a UIImagePickerController, and the info that eventually makes it to the dictionary is created via a series of sliders, switches, and text fields.

The block that is given me trouble is as follows:

let headers: HTTPHeaders = [
        "X-Access-Token": self.user
    ]
let requestUrl = try! URLRequest(url: "http://exampleUrl.com", method: .post, headers: headers)

    upload(
        multipartFormData: { (multipartFormData) in
            multipartFormData.append(videoURL!, withName: "video_source")
            multipartFormData.append(self.alphaLabel.text!.data(using: .utf8)!, withName: "alpha")
            multipartFormData.append(self.betaLabel.text!.data(using: .utf8)!, withName: "beta")
            multipartFormData.append(self.gammaLabel.text!.data(using: .utf8)!, withName: "gamma")
            multipartFormData.append(self.deltaTextField.text!.data(using: .utf8)!, withName: "delta")
            multipartFormData.append(self.epsilonScrollPicker.data(using: .utf8)!, withName: "epsilon")
            multipartFormData.append(zetaArray!.data(using: .utf8)!, withName: "zeta")

        },
            to: requestUrl as! URLConvertible) { encodingResult in
                switch encodingResult {
                case .success (let upload, _, _):
                    upload.responseJSON { response in
                        print(response)
                    }
                case .failure (let encodingError):
                    print(encodingError)
            }
       }

The code above gives: "Thread 1: signal SIGABRT"

The console outputs: "Could not cast value of type 'Foundation.URLRequest' to 'Alamofire.URLConvertible'."

To check to see if everything else works, I ran this:

let requestUrl "http://exampleUrl.com"

upload(
    multipartFormData: { (multipartFormData) in
        multipartFormData.append(videoURL!, withName: "video_source")
        multipartFormData.append(self.alphaLabel.text!.data(using: .utf8)!, withName: "alpha")
        multipartFormData.append(self.betaLabel.text!.data(using: .utf8)!, withName: "beta")
        multipartFormData.append(self.gammaLabel.text!.data(using: .utf8)!, withName: "gamma")
        multipartFormData.append(self.deltaTextField.text!.data(using: .utf8)!, withName: "delta")
        multipartFormData.append(self.epsilonScrollPicker.data(using: .utf8)!, withName: "epsilon")
        multipartFormData.append(zetaArray!.data(using: .utf8)!, withName: "zeta")

    },
        to: requestUrl as! URLConvertible) { encodingResult in
            switch encodingResult {
            case .success (let upload, _, _):
                upload.responseJSON { response in
                    print(response)
                }
            case .failure (let encodingError):
                print(encodingError)


        }
    }

If I use a different request Url, one without other parameters, I get a 401 - invalid access token from my server. This is to be expected as I am not able to pass one up in the header with this new request.

If anyone can shed light on how to do an upload multiPartFormData request and have a header included for authentication I would appreciate it.

Chanchal Warde Chanchal Warde · Accepted Answer · 2017-05-22T05:59:05

I just added your Headers in my working code. You can replace your code with it.

    let yourHeaders: HTTPHeaders = [
        "X-Access-Token": "dsfdsfdsf"
    ]

    Alamofire.upload(multipartFormData: { multipartFormData in

        for (key, value) in parameter
        {
            multipartFormData.append(value.data(using: .utf8 )! , withName: key)
        }
        for videoData in VideoDataArray 
        {
            if  videoData 
            {
                multipartFormData.append(videoData , withName: videoParameterName, fileName: "videoName.mp4", mimeType: "video/mp4")
            }
        }
    }, to: "YourApiUrlHere", method: .post, headers : yourHeaders,
            encodingCompletion: { encodingResult in
                switch encodingResult {
                case .success(let upload, _, _):
                    print(upload.progress)

                    upload.responseJSON {  response in

                        if let JSON = response.result.value
                        {
                            print("JSON: \(JSON)")                              
                    }
                    break
                case .failure( _):
                    }
                }
        })

Adding headers to Alamofire multiPartFormData upload

1 Answers