Upload image with multipart form-data only in Swift 4.2

Please check my solution which is taken parameters and images.I have tested with PHP, .net, java.

class func request(withImages path:APIMethods, method:URLMethod, token : String?, headers:[String:String]?, parameters: [String:Any]?,imageNames : [String], images:[Data], completion: @escaping(Any?, Error?, Bool)->Void) {    if !Reachability.isConnectedToNetwork() {        DispatchQueue.main.async {            showAlert(message: AppMessages.connectionFailed.rawValue)        }        dissmissHud()        return    }    var stringUrl = "\(APIManager.url)\(APIMethods.preFix.rawValue)\(path.rawValue)"    if method == .get, let lastPath = parameters?.values.first as? String {        stringUrl += lastPath    }else{        stringUrl += token ?? ""    }    // generate boundary string using a unique per-app string    let boundary = UUID().uuidString    let config = URLSessionConfiguration.default    let session = URLSession(configuration: config)    print("\n\ncomplete Url :-------------- ",stringUrl," \n\n-------------: complete Url")    guard let url = URL(string: stringUrl) else { return }    var request = URLRequest(url: url)    request.httpMethod = method.rawValue    if headers != nil{        print("\n\nHeaders :-------------- ",headers as Any,"\n\n --------------: Headers")        for (key, value) in headers! {            request.setValue(value, forHTTPHeaderField: key)        }    }    // Set Content-Type Header to multipart/form-data, this is equivalent to submitting form data with file upload in a web browser    // And the boundary is also set here    request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")    var data = Data()    if parameters != nil{        for(key, value) in parameters!{            // Add the reqtype field and its value to the raw http request data            data.append("\r\n--\(boundary)\r\n".data(using: .utf8)!)            data.append("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n".data(using: .utf8)!)            data.append("\(value)".data(using: .utf8)!)        }    }    for (index,imageData) in images.enumerated() {        // Add the image data to the raw http request data        data.append("\r\n--\(boundary)\r\n".data(using: .utf8)!)        data.append("Content-Disposition: form-data; name=\"\(imageNames[index])\"; filename=\"\(imageNames[index])\"\r\n".data(using: .utf8)!)        data.append("Content-Type: image/jpeg\r\n\r\n".data(using: .utf8)!)        data.append(imageData)    }    // End the raw http request data, note that there is 2 extra dash ("-") at the end, this is to indicate the end of the data    data.append("\r\n--\(boundary)--\r\n".data(using: .utf8)!)    // Send a POST request to the URL, with the data we created earlier    session.uploadTask(with: request, from: data, completionHandler: { data, response, error in        if let checkResponse = response as? HTTPURLResponse{            if checkResponse.statusCode == 200{                guard let data = data, let json = try? JSONSerialization.jsonObject(with: data, options: [JSONSerialization.ReadingOptions.allowFragments]) else {                    completion(nil, error, false)                    return                }                let jsonString = String(data: data, encoding: .utf8)!                print("\n\n---------------------------\n\n"+jsonString+"\n\n---------------------------\n\n")                print(json)                completion(json, nil, true)            }else{                guard let data = data, let json = try? JSONSerialization.jsonObject(with: data, options: []) else {                    completion(nil, error, false)                    return                }                let jsonString = String(data: data, encoding: .utf8)!                print("\n\n---------------------------\n\n"+jsonString+"\n\n---------------------------\n\n")                print(json)                completion(json, nil, false)            }        }else{            guard let data = data, let json = try? JSONSerialization.jsonObject(with: data, options: []) else {                completion(nil, error, false)                return            }            completion(json, nil, false)        }    }).resume()}extension Data {    /// Append string to Data    ///    /// Rather than littering my code with calls to `data(using: .utf8)` to convert `String` values to `Data`, this wraps it in a nice convenient little extension to Data. This defaults to converting using UTF-8.    ///    /// - parameter string:       The string to be added to the `Data`.    mutating func append(_ string: String, using encoding: String.Encoding = .utf8) {        if let data = string.data(using: encoding) {            append(data)        }    }}