Send POST parameters with MultipartFormData using Alamofire, in iOS Swift

Question

I am using Alamofire, very first time. I am using the latest version Alamofire 1.3.1. I want to send one image , one video and some POST parameters in one API call. I am using multipart form data. The mutipart module is working. I am facing a problem to send extra POST parametersparams . Below is my code. "params" is the dictionary which contains extra parameters? How can I append these POST parameters in the request. Please help

        var fullUrl :String = Constants.BASE_URL + "/api/CompleteChallenge"          var params = [         "authKey": Constants.AuthKey,         "idUserChallenge": "16",         "comment": "",         "photo": imagePath,         "video": videoPath,         "latitude": "1",         "longitude": "1",         "location": "india"     ]      let imagePathUrl = NSURL(fileURLWithPath: imagePath!)     let videoPathUrl = NSURL(fileURLWithPath: videoPath!)          Alamofire.upload(         .POST,         URLString: fullUrl, // http://httpbin.org/post         multipartFormData: { multipartFormData in             multipartFormData.appendBodyPart(fileURL: imagePathUrl!, name: "photo")             multipartFormData.appendBodyPart(fileURL: videoPathUrl!, name: "video")         },         encodingCompletion: { encodingResult in             switch encodingResult {             case .Success(let upload, _, _):                 upload.responseJSON { request, response, JSON, error in                    }                 }             case .Failure(let encodingError):              }         }     ) 

Answer 1

I found the solution :) finally.

We can append data in the request as multipartformdata.

Below is my code.

  Alamofire.upload(         .POST,         URLString: fullUrl, // http://httpbin.org/post         multipartFormData: { multipartFormData in             multipartFormData.appendBodyPart(fileURL: imagePathUrl!, name: "photo")             multipartFormData.appendBodyPart(fileURL: videoPathUrl!, name: "video")             multipartFormData.appendBodyPart(data: Constants.AuthKey.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"authKey")             multipartFormData.appendBodyPart(data: "\(16)".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"idUserChallenge")             multipartFormData.appendBodyPart(data: "comment".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"comment")             multipartFormData.appendBodyPart(data:"\(0.00)".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"latitude")             multipartFormData.appendBodyPart(data:"\(0.00)".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"longitude")             multipartFormData.appendBodyPart(data:"India".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)!, name :"location")         },         encodingCompletion: { encodingResult in             switch encodingResult {             case .Success(let upload, _, _):                 upload.responseJSON { request, response, JSON, error in                   }             case .Failure(let encodingError):              }         }     ) 

EDIT 1: For those who are trying to send an array instead of float, int or string, They can convert their array or any kind of data-structure in Json String, pass this JSON string as a normal string. And parse this json string at backend to get original array

Answer 2

In Alamofire 4 it is important to add the body data before you add the file data!

let parameters = [String: String]() [...] self.manager.upload(     multipartFormData: { multipartFormData in         for (key, value) in parameters {             multipartFormData.append(value.data(using: .utf8)!, withName: key)         }         multipartFormData.append(imageData, withName: "user", fileName: "user.jpg", mimeType: "image/jpeg")     },     to: path,     [...] )