1.18.0 (April 23, 2019)

New Features

• You can now use the Network Quality API to receive Network Quality levels for RemoteParticipants in a Group Room. You can also control the verbosity of the network quality information that is reported. A Participant will now have an additional property networkQualityStats which contains the network quality statistics used to calculate the networkQualityLevel. (JSDK-2255)
  

You can specify the verbosity levels of the network quality information in ConnectOptions while joining the Room:

  const { connect } = require('twilio-video');
  const room = await connect(token, {
    networkQuality: {
      local: 1, // Verbosity level for LocalParticipant [1 - 3]
      remote: 2 // Verbosity level for RemoteParticipants [0 - 3]
    }
  });

  // Set up reporting of network quality statistics for the LocalParticipant.
  setupNetworkQualityStats(room.localParticipant);

  // Set up reporting of network quality statistics for RemoteParticipants in the Group Room.
  room.participants.forEach(setupNetworkQualityStats);

  // Set up reporting of network quality statistics for RemoteParticipants that will join the Group Room.
  room.on('participantConnected', setupNetworkQualityStats);

  function logNetworkQualityStats(participant, networkQualityLevel, networkQualityStats) {
    console.log(`Network quality level for ${participant.identity}:`, networkQualityLevel);  
    if (networkQualityStats) {
      // Verbosity is in the range [2 - 3].
      console.log('Network quality statistics used to compute the level:', networkQualityStats);
    }
  }

  function setupNetworkQualityStats(participant) {
    // Log current network quality statistics of the Participant.
    logNetworkQualityStats(participant, participant.networkQualityLevel, participant.networkQualityStats);
    // Listen to changes in the Participant's network quality level.
    participant.on('networkQualityLevelChanged', (networkQualityLevel, networkQualityStats) => {
      logNetworkQualityStats(participant, networkQualityLevel, networkQualityStats);
    });
  }

You can also change the verbosity levels of the network quality information after
joining the Room:

  room.localParticipant.setNetworkQualityConfiguration({
    local: 3,
    remote: 1
  });