How to work with Multipart using Alamofire in Swift with multiple images with different keys and parameters with multiple kinds

Question

How to handle multipart in swift if you are dealing with multiple images having different keys and also having parameter dictionary with different kinds of key:value pairs like "String":"Any", "String":"[Any]", [[String:Any]].

let headers: HTTPHeaders = ["Content-type": "multipart/form-data"]

    Alamofire.upload(multipartFormData: { (multipartFormData) in

        for (key, value) in parameters {
            multipartFormData.append("\(value)".data(using: String.Encoding.utf8)!, withName: key as String)
        }

        //Todo: - Images
        var c = 0
        for dictImage in arrImage {

            let validDict = kSharedInstance.getDictionary(dictImage)

            for keyName in validDict.keys {
                print(keyName)

                //Incr
                c += 1

                if let imageData = validDict[keyName] as? Data {

                    multipartFormData.append(imageData, withName: "\(keyName)", fileName: "\(Date().timeIntervalSince1970).jpeg", mimeType: "image/jpeg")

                }

            }
        }


    }, usingThreshold: UInt64(), to: urlString, method: .post, headers: headers) { (result) in
        switch result{
        case .success(let upload, _, _):
            upload.responseJSON { response in
                print("Succesfully uploaded")

                if((response.result.value) != nil) {
                    debugPrint(response.result.value!)

                    let jsonData = JSON(response.result.value!)
                    if jsonData["status"].bool == true {
                        completion(jsonData.dictionaryObject!, true)
                    }else
                    {
                        completion(jsonData.dictionaryObject!, false)
                    }
                }
            }
        case .failure(let error):
            print("Error in upload: \(error.localizedDescription)")
            failure(error, false)
        }
    }

It only uploads simple (key,value) pairs. But, unable to upload images and rest of the data. — Ashwani Kumar, Sep 03 '19 at 11:12

score 0 · Answer 1 · answered Sep 04 '19 at 06:47

Please check below code. Hope it helps you

  Alamofire.upload(
        multipartFormData: { MultipartFormData in
        for (key, value) in parameters {
            MultipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)
        }

        for i in 0 ..< files.count {
            let fileName : String  = "image\(i).jpg"
            let datum : Data = files[i]
            MultipartFormData.append(datum, withName: fileParamName, fileName: fileName, mimeType: "image/jpg")
        }

    }, to: URLString, method: .post, headers: headers) { (result) in
        switch(result) {

        case .success(let upload, _, _):
            upload.responseJSON { response in

            }
            break;
        case .failure(_):
        }
    }

How to work with Multipart using Alamofire in Swift with multiple images with different keys and parameters with multiple kinds

1 Answers1