resumeSession method

Future<void> resumeSession({ SessionResumptionConfig? sessionResumption, })

Resumes an existing live session with the server.

This closes the current WebSocket connection and establishes a new one using the same configuration (URI, headers, model, system instruction, tools, etc.) as the original session.

sessionResumption (optional): The configuration for session resumption, such as the handle to the previous session state to restore.

Implementation

Future<void> resumeSession(
    {SessionResumptionConfig? sessionResumption}) async {
  try {
    await _wsSubscription.cancel().timeout(const Duration(seconds: 2),
        onTimeout: () {
      log('live_session.resumeSession: WebSocket subscription cancel timed out.',
          error: TimeoutException('Cancel timed out'));
    });
    await _ws.sink.close().timeout(const Duration(seconds: 2), onTimeout: () {
      log('live_session.resumeSession: WebSocket close timed out.',
          error: TimeoutException('Close timed out'));
    });

    _ws = await _performWebSocketSetup(
      uri: _uri,
      headers: _headers,
      modelString: _modelString,
      systemInstruction: _systemInstruction,
      tools: _tools,
      sessionResumption: sessionResumption,
      liveGenerationConfig: _liveGenerationConfig,
    );
  } catch (e) {
    log('live_session.resumeSession: WebSocket setup failed', error: e);
    rethrow;
  }

  _listenToWebSocket();
}