Report group messages as read

await openimsdk.sendGroupMessageReadReceipt({
  conversationID,
  clientMsgIDList: visibleUnreadMessageIDs,
});

Every message in one batch must belong to the target group conversation. Promise completion means only that the server accepted the report; it does not mean other client interfaces have already updated. The conversation unread count is maintained separately through markConversationMessageAsRead().

Other clients receive member-level group read updates via SdkEvent.OnRecvGroupReadReceipt. When the event arrives, match the message using conversationID + clientMsgID and update its hasReadCount, unreadCount, and reader details:

import { SdkEvent } from '@openim/wasm-client-sdk';

const handleGroupReadReceipt = ({ data }) => {
  mergeGroupReadReceipt(data);
};

openimsdk.on(SdkEvent.OnRecvGroupReadReceipt, handleGroupReadReceipt);

function removeGroupReadReceiptListener() {
  openimsdk.off(SdkEvent.OnRecvGroupReadReceipt, handleGroupReadReceipt);
}

Call removeGroupReadReceiptListener() when the component unmounts, the user logs out, or the active account changes. Sending group message read receipts does not replace conversation-level read status; when leaving the chat view or switching conversations, call Mark a conversation as read to clear conversation unread counts. The report Promise, the group receipt event, and the member list returned by Get members who read a group message are three independent stages.