Flutter:发送字段时 API 没有响应?

问题描述

我为带有上传图像的 Multipart API post 请求创建了一个 Future 函数。但是当我使用 request.fields.addAll(updateProfileInfo.toJson()); 时,它没有响应。

这是代码示例 -

    Future<Map<String,dynamic>> updateprofile(
      UpdateProfileInfo updateProfileInfo,File imageFile) async {
    var stream = http.ByteStream(Stream.castFrom(imageFile.openRead()));
    var length = await imageFile.length();

    String url = "$baseAPIUrl/update-profile-info";
    String _token = await SavedData().loadToken();
    String authorization = "Bearer $_token";

    final body = jsonEncode(updateProfileInfo);
    final headers = {
      'Content-Type': 'application/json','Accept': 'application/json',"Authorization": authorization
    };

    var request = http.MultipartRequest("POST",Uri.parse(url));
    var multipartFile = http.MultipartFile('image',stream,length,filename: basename(imageFile.path));
    request.headers.addAll(headers);
    request.files.add(multipartFile);

    request.fields.addAll(updateProfileInfo.toJson());

    http.StreamedResponse response = await request.send();

    String respStr = await response.stream.bytesToString();
    dynamic respJson;

    try {
      respJson = jsonDecode(respStr);
    } on FormatException catch (e) {
      print(e.toString());
    }

    print('API ${response.statusCode}\n  $respJson');

    bool isSuccess = response.statusCode == 200;
    var data = json.decode(respStr);

    return {
      'isSuccess': isSuccess,"message": isSuccess ? data["success"]["message"] : null,"name": isSuccess ? data["success"]["name"] : null,"classgroup": isSuccess ? data["success"]["classgroup"] : null,"image": isSuccess ? data["success"]["image"] : null,"error": isSuccess ? null : data['error']['message'],};
  }

如何发送正文字段请求?请有人帮助我

解决方法

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