Flutter 多部分图像不与正文的 rest 一起发送

Question

I'm trying to send a multipart request using the flutter http package and so far, every field is sent successfully, except the image. The code is below.

Future multipartPostRequestProfile(
      id, dob, country, state, gender, File? imgPath) async {
    var token = await storage.read(key: 'jwt');
    var request = http.MultipartRequest(
        'PUT', Uri.parse('url'));

    request.files.add(await http.MultipartFile.fromPath(
      "image",
      imgPath!.path,
    ));
    request.fields['dateOfBirth'] = dob;
    request.fields['country'] = country;
    request.fields['state'] = state;
    request.fields['gender'] = gender;

    request.headers.addAll({
      "Content-Type": "multipart/form-data",
      "Authorization": "Bearer $token"
    });
    var res = await request.send();
    var result = await http.Response.fromStream(res);

    if (result.statusCode != 200)
      return {'result': result.statusCode, 'body': result.body};
    final Map<String, dynamic> responseData = jsonDecode(result.body);
    return responseData;
  }

Answer 1

try this..method

Future multipartRequestPost(
String url,
String methodName, {
required Map<String, String> header,
File? image1,
File? image2,
Map<String, String>? body,
String? image1Key,
String? image2Key,
  }) async {
    var client = http.Client();
    try {
     String fullURL = APIUrl.baseUrl + url;
     var request = http.MultipartRequest(methodName, 
   Uri.parse(fullURL));
  if (body != null) {
    request.fields.addAll(body);
  }
  if (image1?.path.isNotEmpty ?? false) {
    request.files.add(await http.MultipartFile.fromPath(image1Key ?? '', 
    image1?.path ?? ''));
      request.files.add(await http.MultipartFile.fromPath(image2Key ?? 
     '', image2?.path ?? ''));
    }
  request.headers.addAll(header);
  http.StreamedResponse response = await request.send();
  final respStr = await response.stream.bytesToString();
  if (response.statusCode == 200 || response.statusCode == 201) {
    return response.statusCode;
  } 
} 
catch (exception) {
  client.close();
  throw AppException.exceptionHandler(exception);
  }
}