Slow on web?

[fischerscode]

I've noticed that dio seems to be about 9 times slower then http when fetching 1mb of data on web.
That seems weird to me. Am I doing something wrong?

// activate the download here: https://www.speedtestx.de/
import 'package:dio/dio.dart' as dio;
import 'package:http/http.dart' as http;

void main() async {

  await getHttp();
  await getDio();
}

Future<void> getDio() async {
  DateTime start = DateTime.now();
  try {
    await dio.Dio().get("https://www.speedtestx.de/testfiles/data_1mb.test");
    print("Dio: ${DateTime.now().difference(start)}");
  } catch (e) {
    print(e);
  }
}

Future<void> getHttp() async{
  DateTime start = DateTime.now();
  try {
    await http.get("https://www.speedtestx.de/testfiles/data_1mb.test");
    print("Http: ${DateTime.now().difference(start)}");
  } catch (e) {
    print(e);
  }
}

Output:

Http: 0:00:00.490000
Dio: 0:00:04.583000

I am using dio 3.0.10 and dart 2.11.0-213.1.beta (beta).

[peterlauri]

We also experience the same problem.

[LucaIaconelli]

Is there any news about it?

[peterlauri]

Is there any news about it?

We migrated away to use basic http.Client provided by Flutter/Dart.

[LucaIaconelli]

With http provided by Flutter/Dart, how do you set up withCredentials variable in BrowserClient?

[peterlauri]

With http provided by Flutter/Dart, how do you set up withCredentials variable in BrowserClient?

Our app uses JWT authentication, so we just use plain headers for doing that. 

http.get(url, headers={'Authorization': 'JWT $token'})

[LucaIaconelli]

But unfortunately, this doesn't solve my problem using Cookies

[LucaIaconelli]

There is no plan to update this library for solving this problem? @wendux

Thanks in advance

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. If this is still an issue, please make sure it is up to date and if so, add a comment that this is still an issue to keep it open. Thank you for your contributions.

[nstrelow]

Is dio still slow on web?

[coduy96]

Is dio still slow on web?

yes

[woprandi]

Few seconds before uploading a file...

[amirmhmdi]

I'm on flutter 2.2.2 and every thing okay on android and iOS ! but on web is so slow.
I used dio 3.0.0 and dio 4.0.0 but it took about 3 sec to fetch data but when I use http.get it take about 100ms .
any update ?

[intraector]

same problem

[jgoyvaerts]

This issue has been fixed on our fork of dio, dio_http.

Package is available here: https://pub.dev/packages/dio_http

[tomekit]

Nowadays with Flutter: 3.19.5 and

http: ^1.2.1
dio: ^5.4.2+1

I find them both unacceptably slow on Web, however on desktop or mobile it is just fine.

flutter/flutter#146494