http MultipartRequest file not receiving in server

I'm trying to upload image to my server but it's not receiving in my server when I upload file from app. But if I upload via postman it works but not from simulator My Code

    final request = http.MultipartRequest(
'POST', Uri.parse(''));
request.fields['title'] = title.text;
request.fields['sub_title'] = subTitle.text;
request.files
.add(await http.MultipartFile.fromPath('profile_photo', photo.path));
request.files

.add(await http.MultipartFile.fromPath('profile_video', video.path));
var response = await request.send();
var responseString = await response.stream.bytesToString();

print(responseString);
`

Output

{'title': 'zia', 'sub_title' : 'sultan', 'profile_photo' : {}, 'profile_video' : {}}