# Multipart sample for swift

## Example 1

    func uploadFileToServiceCloud(caseId: String, replyRecordId: String, attachedData: Data, completion: cloudAPIResponse) {
        if !checkNetworkReachability() {
            completion?(false, "NetworkErr")
            return
        }
        
        let typeApi = ServiceCloudAPI()
        
        var urlStr = HttpProtocal.HTTP.rawValue
        urlStr += typeApi.getCPFileSite()
        urlStr += typeApi.getApiType(TypeOfServiceCloudAPI: .UploadFileToCase)
        
        let webUrl = URL(string: urlStr)
        var request = URLRequest(url: webUrl!, cachePolicy: .reloadIgnoringLocalAndRemoteCacheData, timeoutInterval: 30)
        request.addValue(ServiceCloudAPI.token, forHTTPHeaderField: "Authorization")
        request.httpMethod = HttpRequestType.POST.rawValue
        
        // Create httpBody
        var body = Data()
        let bodyBoundary = "----\(UUID().uuidString)"
        
        body.append(Data("--\(bodyBoundary)\r\n".utf8))
        body.append(Data("Content-Disposition:form-data; name=\"file\";\r\n".utf8))
        body.append(Data("filename=\"Logs.zip\"\r\n".utf8))
        body.append(Data("Content-Type: application/zip\r\n\r\n".utf8))
        body.append(attachedData)
        body.append(Data("\r\n".utf8))
        body.append(Data("--\(bodyBoundary)--\r\n".utf8))
        body.append(Data("Content-Disposition:form-data; name=caseId\r\n".utf8))
        body.append(Data("\(caseId)\r\n".utf8))
        body.append(Data("--\(bodyBoundary)--\r\n".utf8))
        body.append(Data("Content-Disposition:form-data; name=replyRecordId\r\n".utf8))
        body.append(Data("\(replyRecordId)\r\n".utf8))
        body.append(Data("--\(bodyBoundary)--\r\n".utf8))
        
        request.httpBody = body
        // Addtional header
        
        let manualHeader: [String: String] = [
            "Content-Type": "multipart/form-data; boundary=\(bodyBoundary)"
        ]
        request.allHTTPHeaderFields = manualHeader
        
        let config = URLSessionConfiguration.default
        let session = URLSession(configuration: config, delegate: self, delegateQueue: nil)
        
        let dataTask = session.dataTask(with: request, completionHandler: {
            (data, response, error) in
            guard error == nil else {
                QnapLogger.i("URL request error: \(String(describing: error))")
                completion?(false, error as? String)
                return
            }

            let urlres = response as! HTTPURLResponse
            guard urlres.statusCode == 200 else {
                let retData = self.handleURLErrCode(apiName: CloudAPIFuncName.uploadFileToServiceCloud, urlRequestCode: urlres.statusCode, returnData: data)
                completion?(false, retData)
                return
            }

            guard let retData = data,
                let result = try? JSONSerialization.jsonObject(with: retData, options: []) as? [String: String] else {
                    completion?(false, "No data receive")
                    return
            }

            guard result["result"] == "Success" else {

                completion?(false, result)
                return
            }

            completion?(true, result["url"])

        })
        dataTask.resume()
        session.finishTasksAndInvalidate()
    }

## Example 2

    func updateAvatars(aImage:UIImage?, completion: cloudAPIResponse) {
        if !checkNetworkReachability() {
            completion?(false, "NetworkErr")
            return
        }
        
        // Check token
        guard let _loginData = loginData, _loginData.access_token != nil,
            let _bindResult = bindResult, _bindResult.token != nil else {
                completion?(false, "Missing access token or device token")
                return
        }
        
        // Produce URL
        let typeApi = QcloudAPI(devId: _bindResult.device_id, linkedDevId: nil, itemId: nil)
        var urlStr = HttpProtocal.HTTPS.rawValue
        urlStr += typeApi.getSite(siteType: "DeviceAPI")
        urlStr += typeApi.getApiType(typeAPI: .UpdateOrUploadDeviceAvatar)
        let webUrl = URL(string: urlStr)
        
        // Create httpBody
        var body = Data()
        let bodyBoundary = "----\(UUID().uuidString)"
        body.append(Data("--\(bodyBoundary)\r\n".utf8))
        body.append(Data("Content-Disposition:form-data; name=\"avatar_file\";".utf8))
        body.append(Data("filename=\"avatar.jpeg\"\r\n".utf8))
        body.append(Data("Content-Type: image/jpeg\r\n\r\n".utf8))
        body.append(aImage!.jpegData(compressionQuality: 0.8)!)
        body.append(Data("\r\n".utf8))
        body.append(Data("--\(bodyBoundary)--\r\n".utf8))
        
        // Addtional header
        
        let manualHeader: [String: String] = [
            "Content-Type": "multipart/form-data; boundary=\(bodyBoundary)"
        ]
        
        // Produce url request
        let request = getQnapRequest(method: .POST, url: webUrl!, loginData: _loginData, bindResult: _bindResult, header: manualHeader, httpBody: body)
        send(request: request, apiName: .updateAvatars, errorString: "") { (isOk, data) in
            guard isOk else {
                completion?(isOk, data)
                return
            }
            
            guard let retData = data as? Data,
                let jsonData = try? JSONSerialization.jsonObject(with: retData, options: []) as? [String:Any] else {
                    completion?(false, "Cannot parse return data.")
                    return
            }
            
            completion?(true, jsonData["message"])
        }
    }