Retrieve a list of users in a channel

You can retrieve a list of participants who are currently online and receiving all messages from an open channel using the createParticipantListQuery() method. To retrieve a list of members in a group channel, call the members property.

const query = channel.createParticipantListQuery();

const users = await query.next();

channel.members;

Members of a group channel are automatically updated when a user is online. But when a user is disconnected from the Sendbird server and then reconnected, you should call the refresh() method to update the user's group channels with the latest information. See refresh all data related to a group channel for the sample code.

You can access detailed information about each member in a group channel, including when they joined.

Each Member object contains information about when the member joined the channel:

const members = channel.members;
for (const member of members) {
  console.log(member.userId);
  console.log(member.nickname);
  console.log(member.joinedAt); // Timestamp when the member joined the channel in milliseconds.
}

The joinedAt property contains the timestamp in milliseconds when the member joined the channel.