uploadImageBytes method

Future<UploadJsonResult> uploadImageBytes(String? fileName, List<int>? fileBytes, String? mimeType)

Implementation

Future<UploadJsonResult> uploadImageBytes(
    String? fileName, List<int>? fileBytes, String? mimeType) async {
  // 检测是否含有后缀，如果没有后缀，则添加 .png后缀
  if (!fileName!.contains(".")) {
    fileName += '.png';
  }
  // 格式化日期时间
  String formattedDateTime = BytedeskUtils.formatedTimestampNow();
  // 拼接文件名
  String fileNameNew = '${formattedDateTime}_$fileName';

  Uri uploadUri = BytedeskUtils.getHostUri('/visitor/api/v1/upload/file');
  debugPrint("uploadUri ${uploadUri.toString()}");
  // BytedeskUtils.printLog(
  //     "uploadImage fileName $fileName, username $username, upload Url $uploadUrl");
  // web browser 浏览器中不支持此种上传图片方式
  // Unsupported operation: MultipartFile is only supported where dart:io is available.
  var request = http.MultipartRequest('POST', uploadUri)
    ..fields['file_name'] = fileNameNew
    ..fields["file_type"] = BytedeskUtils.getFileType(fileNameNew)
    ..fields["is_avatar"] = "false"
    ..fields["kb_type"] = BytedeskConstants.UPLOAD_TYPE_CHAT
    ..fields["category_uid"] = ""
    ..fields["kb_uid"] = ""
    ..fields["client"] = client
    ..files.add(http.MultipartFile.fromBytes('file', fileBytes!,
        filename: fileName, contentType: MediaType.parse(mimeType!)));

  http.Response response =
      await http.Response.fromStream(await request.send());
  // debugPrint("Result: ${response.body}");

  //解决json解析中的乱码问题
  Utf8Decoder utf8decoder = const Utf8Decoder(); // fix 中文乱码
  //将string类型数据 转换为json类型的数据
  final responseJson = json.decode(utf8decoder.convert(response.bodyBytes));
  debugPrint("web upload image responseJson $responseJson");
  //
  return UploadJsonResult.fromJson(responseJson);
}