vact_sdk 2.2.2

Dependency-free one-to-one voice and video calling for VACT. Plain HTTPS plus WebRTC.

example/README.md

vact_sdk example

Full runnable apps (with Node and Firebase backends) live at https://github.com/danishktabbas/vact-example. Sign up free at https://vact.online for an App ID and ₹100 of credit.

The whole client flow is: connect → call / accept → render → end.

import 'package:vact_sdk/vact_sdk.dart';
import 'package:flutter_webrtc/flutter_webrtc.dart';

final vact = Vact(appId: 'vact_app_your_public_app_id');

// 1. Connect with a one-time token minted by YOUR backend.
await vact.connect(accessToken: accessTokenFromYourBackend);

// 2. Receive calls (handle one at a time; de-dupe by id).
String? prompting;
vact.incomingCalls().listen((calls) async {
  if (prompting != null || calls.isEmpty) return;
  final incoming = calls.first;
  prompting = incoming.id;
  final call = await vact.accept(incoming); // or vact.decline(incoming)
  prompting = null;
  _render(call);
});

// 3. Or place a call.
final call = await vact.call('user_42', video: true);
_render(call);

// 4. Show the video — re-attach the remote renderer when the track arrives.
void _render(VactCall call) async {
  final remote = RTCVideoRenderer();
  await remote.initialize();
  remote.srcObject = call.remoteStream;
  call.onRemoteTrack = () => remote.srcObject = call.remoteStream; // key line
  // RTCVideoView(remote) and RTCVideoView(localRenderer, mirror: true)
  call.states.listen((s) {
    if (s == VactCallState.ended || s == VactCallState.failed) {/* pop screen */}
  });
}

// 5. End.
await call.end();

Android needs minSdkVersion 23 and camera/mic permissions; iOS needs the Info.plist usage strings and deployment target 13. See the package README and https://vact.online/docs.html for the exact per-platform setup.