Retrofit uploading a picture

Question

I'm using Retrofit v.2.2.0 to upload a picture to my server but the server returns a null value stating no image has been uploaded. The logs shows the image is uploaded and the file name is correct when uploaded. What can be the problem yet it works in postman?

UploadProfilePicture.java

public class UploadProfilePicture extends ContextWrapper {

private GetOnUpload onUpload;
private File imageFile,filesDir,file;
private Uri fileUri;
private String profilePic = "profile_pic";
private String fileName;
private ParcelFileDescriptor parcelFileDescriptor;
private FileDescriptor fileDescriptor;
private  Bitmap profileImage;
private OutputStream os;
private OkHttpLogClientAPI okHttpLogClientAPI;
private GetOnUpload mInterfaceService;


public UploadProfilePicture(Context base) {
    super(base);

    okHttpLogClientAPI = new OkHttpLogClientAPI(getBaseContext());


    mInterfaceService = okHttpLogClientAPI.logger().create(GetOnUpload.class);

}




public void uploadPic(Uri fileUri,String fileName, final OnSetUploadProfilePic setOnUpload) {
    //Build Req estBodies for the map object and a MultipartBody.Part to encapsulate the prof_pic_drawer

    this.fileUri = fileUri;
    this.fileName = fileName;
    try {
        getBitmapFromUri();
    } catch (IOException e) {
        e.printStackTrace();
    }
    file = persistImage();


    RequestBody finalRequestBody = builder.build();
    RequestBody requestFile =
            RequestBody.create(MediaType.parse("multipart/form-data"), getBytesFromBitmap(profileImage));

    // MultipartBody.Part is used to send also the actual file name
    MultipartBody.Part body =
            MultipartBody.Part.createFormData("file", "avatar.jpg", requestFile);
        Call<ResponseUserModel> call = mInterfaceService.upload(body);

        call.enqueue(new Callback<ResponseUserModel>() {

            @Override
            public void onResponse(Call<Response> call, Response<Response> response) {


                if (response.isSuccessful()) {
                    setOnUpload.uploadMessage(response.body());


                } else {
                    Toast.makeText(getBaseContext(), getString(R.string.failed_to_upload), Toast.LENGTH_SHORT).show();
                }

            }

            @Override
            public void onFailure(Call<Response> call, Throwable t) {

                Toast.makeText(getBaseContext(), getString(R.string.failed_to_upload), Toast.LENGTH_SHORT).show();

            }
        });
    }
}

public static byte[] getBytesFromBitmap(Bitmap bitmap) {
    if (bitmap!=null) {
        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.JPEG, 70, stream);
        return stream.toByteArray();
    }
    return null;
}


private MultipartBody.Part prepareFilePart() {

    //TODO: Use FileUtils to get the actual file by uri


    try {
        getBitmapFromUri();
        file = persistImage();


    } catch (IOException e) {
        e.printStackTrace();
    }


    try {
        RequestBody requestFile = RequestBody.create(
                MediaType.parse(getBaseContext().getContentResolver().getType(fileUri)), file);
            return MultipartBody.Part.createFormData("file", file.getName(), requestFile);

    } catch (NullPointerException e) {

        Toast.makeText(getBaseContext(), "" + e.getMessage(), Toast.LENGTH_SHORT).show();

        return null;
    }

}

private RequestBody createPartFromString(String descriptionString) {
    return RequestBody.create(MultipartBody.FORM, descriptionString);
}


private void getBitmapFromUri() throws IOException {
    profileImage = MediaStore.Images.Media.getBitmap(this.getContentResolver(), fileUri);
}

private File persistImage() {
    filesDir = getFilesDir();
     imageFile = new File(filesDir, fileName + ".jpg");

    OutputStream os;
    try {
        os = new FileOutputStream(imageFile);
        profileImage.compress(Bitmap.CompressFormat.JPEG, 70, os);
        os.flush();
        os.close();
    } catch (Exception e) {
        Log.e(getClass().getSimpleName(), "Error writing bitmap", e);
    }

    return imageFile;
}}

GetOnUpload.java

public interface GetOnUpload {
 @Multipart
@POST(Constants.UPLOAD_URL)
Call<Response> upload(@Part MultipartBody.Part file);}

Log

http://local.com/api/v1/avatar http/1.1 11-14 18:40:02.742 8851-9593/com.local.test D/OkHttp: Content-Type: multipart/form-data; boundary=d43da080-f2c3-4743-8cfd-9526cc0bd2f7 11-14 18:40:02.742 8851-9593/com.local.test D/OkHttp: Content-Length: 12424 11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp: --d43da080-f2c3-4743-8cfd-9526cc0bd2f7 11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp: Content-Disposition: form-data; name="file"; filename="avatar.jpg" 11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp: Content-Type: multipart/form-data 11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp: Content-Length: 12201 11-14 18:40:02.743 8851-9593/com.local.test D/OkHttp: 11-14 18:40:02.744 8851-9593/com.local.test D/OkHttp: --d43da080-f2c3-4743-8cfd-9526cc0bd2f7-- 11-14 18:40:02.744 8851-9593/com.local.test D/OkHttp: --> END POST (12424-byte body)

11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: <-- 200 OK http://local.com/api/v1/avatar (587ms) 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: Server: nginx/1.10.3 (Ubuntu) 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: Content-Type: application/json 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: Transfer-Encoding: chunked 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: Connection: keep-alive 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: Cache-Control: no-cache, private 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: Date: Tue, 14 Nov 2017 15:40:03 GMT 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: X-RateLimit-Limit: 60 11-14 18:40:03.332 8851-9593/com.local.test D/OkHttp: X-RateLimit-Remaining: 59 11-14 18:40:03.333 8851-9593/com.local.test D/OkHttp: {"user":"Failed","status":"Image file not uploaded"}

Answer 1

This example worked for me

//My data manager                                        
public void doUpload(
    Context context,
    String url) {

    Uri uri = Uri.parse(url);
    File file = new File(getPath(context, uri));
    RequestBody reqFile = RequestBody.create(MediaType.parse("image/*"), file);
    MultipartBody.Part body = MultipartBody.Part.createFormData("imageParameterName", file.getName(), reqFile);

    uploadService(body)

}

//REST service
@Multipart
@POST("upload.aspx")
Call<DefaultDTO> uploadService(@Part MultipartBody.Part image);