tencent cloud

chat.getTotalUnreadMessageCount();

// The total number of unread messages in one-to-one and group conversations
let totalUnreadCount = chat.getTotalUnreadMessageCount();

let onTotalUnreadMessageCountUpdated = function(event) {
  console.log(event.data);
};
chat.on(TencentCloudChat.EVENT.TOTAL_UNREAD_MESSAGE_COUNT_UPDATED, onTotalUnreadMessageCountUpdated);

chat.setMessageRead(options);

// Set all the unread messages in a conversation as read
let promise = chat.setMessageRead({conversationID: 'C2Cexample'});
promise.then(function(imResponse) {
  // Set the unread messages as read successfully.
  // The value of the `unreadCount` attribute of the conversation with the specified ID is set to `0`.
}).catch(function(imError) {
  // Failed to set the unread messages as read
  console.warn('setMessageRead error:', imError);
});

chat.setAllMessageRead(options);

// Set the unread messages of all the conversations as read
// Same as `chat.setAllMessageRead({scope: TencentCloudChat.TYPES.READ_ALL_MSG})`
let promise = chat.setAllMessageRead();
promise.then(function(imResponse) {
  // Set the unread messages as read successfully.
  // The values of the `unreadCount` attribute of all the conversations are set to `0`.
}).catch(function(imError) {
  // Failed to set the unread messages as read
  console.warn('setAllMessageRead error:', imError);
});

// Set the unread messages of all the one-to-one conversations as read
let promise = chat.setAllMessageRead({scope: TencentCloudChat.TYPES.READ_ALL_C2C_MSG});
promise.then(function(imResponse) {
  // Set the unread messages as read successfully.
  // The values of the `unreadCount` attribute of all the one-to-one conversations are set to `0`.
}).catch(function(imError) {
  // Failed to set the unread messages as read
  console.warn('setAllMessageRead error:', imError);
});

// Set the unread messages of all the group conversations as read
let promise = chat.setAllMessageRead({scope: TencentCloudChat.TYPES.READ_ALL_GROUP_MSG});
promise.then(function(imResponse) {
  // Set the unread messages as read successfully.
  // The values of the `unreadCount` attribute of all the group conversations are set to `0`.
}).catch(function(imError) {
  // Failed to set the unread messages as read
  console.warn('setAllMessageRead error:', imError);
});

chat.sendMessage(message, {
  messageControlInfo: {
    // `unreadCount` of the conversation is not updated (the message is stored on the roaming server).
    excludedFromUnreadCount: true,
    // `lastMessage` of the conversation is not updated (the message is stored on the roaming server). 
    excludedFromLastMessage: true
  }
});