Alamofire 4 multipart

Question

我尝试使用Alamofire 4创建多部分请求。 我不会添加[String：AnyObject]作为其中的一部分。但是当multipartFormData追加bool或[Int]从我的有效载荷字典应用程序崩溃！我的错误在哪里？

let payload: [String: AnyObject] = [ 
     "key1": "val1" as AnyObject, 
     "key2": true as AnyObject, 
     "key3" : [1,2,3,4] as AnyObject 
    ] 

    let requestString = "http://www.url.com/api/action" 

    Alamofire.upload(multipartFormData: { (multipartFormData) in 
     for (key, value) in payload { 
      multipartFormData.append(value.data(using: String.Encoding.utf8.rawValue, allowLossyConversion: false)!, withName: "request", fileName: key, mimeType: "application/json") 
     } 
     multipartFormData.append(imageUrl, withName: "fileData", fileName: "image", mimeType: "image/png") 

    }, to: requestString, method: .post , headers: ["Content-Type": "multipart/form-data"], encodingCompletion: { (result) in 
     switch result { 
     case .success(let upload, _, _): 

      upload.uploadProgress(closure: { (progress) in 
       print(progress.fractionCompleted * 100) 
      }) 

      upload.responseJSON(completionHandler: { (response) in 
      }) 
     case .failure(let error): 
      print(error) 

     } 
    }) 

Answer 1

您发送了错误的参数。尝试下面的代码Alamofire 4.

let payload: [String: AnyObject] = [ 
    "key1": "val1" as AnyObject, 
    "key2": true as AnyObject, 
    "key3" : [1,2,3,4] as AnyObject 
] 

let requestString = "http://www.url.com/api/action" 

Alamofire.upload(multipartFormData: { (multipartFormData) in 
    multipartFormData.append(UIImageJPEGRepresentation(self.photoImageView.image!, 0.5)!, withName: "photo_path", fileName: "swift_file.jpeg", mimeType: "image/jpeg") 
    for (key, value) in payload { 
     multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key) 
    } 
    }, to: requestString, method: .post , headers:nil, encodingCompletion: { (result) in 
    switch result { 
    case .success(let upload, _, _): 

     upload.uploadProgress(closure: { (progress) in 
      print(progress.fractionCompleted * 100) 
     }) 

     upload.responseJSON(completionHandler: { (response) in 
     }) 
    case .failure(let error): 
     print(error) 

    } 
})