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Docs Overview/
Chat/
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Group/
Group Member Management/

Group Member Management

Feature Description

Group member management includes pulling the member list, muting group members, removing group members, granting permissions, and transferring the group ownership.


Getting the Group Member List

Call GroupGetMemberInfoList (Details) to get the list of members in a specified group. This list contains the profile information of each member, such as user ID (group_member_info_identifier), group name card (group_member_info_name_card), profile photo (group_member_info_face_url), nickname (group_member_info_nick_name), and time for joining the group (group_member_info_join_time).
A group may have a large number of members (for example, more than 5,000). In this case, you can use the filter (group_get_members_info_list_param_option) and paged pull (group_get_members_info_list_param_next_seq) advanced features of the API for pulling the group member list.

Filter (filter)

When calling the GroupGetMemberInfoList API (Details), you can specify to pull the list of the information of specified roles.
Filter
Type
TIMGroupMemberRoleFlag.kTIMGroupMemberRoleFlag_All
Pull the list of the information of all the group members
TIMGroupMemberRoleFlag.kTIMGroupMemberRoleFlag_Owner
Pull the list of the information of the group owner
TIMGroupMemberRoleFlag.kTIMGroupMemberRoleFlag_Admin
Pull the list of the information of the group admin
TIMGroupMemberRoleFlag.kTIMGroupMemberRoleFlag_Member
Pull the list of the information of ordinary group members
Sample code:
// Specify to pull the profile of the group owner through the `filter` parameter
GroupGetMemberInfoListParam param = new GroupGetMemberInfoListParam
{
  group_get_members_info_list_param_group_id = "group_id",
  group_get_members_info_list_param_option = new GroupMemberGetInfoOption
  {
    group_member_get_info_option_role_flag = TIMGroupMemberRoleFlag.kTIMGroupMemberRoleFlag_Owner
  }
};
TIMResult res = TencentIMSDK.GroupGetMemberInfoList(param, (int code, string desc, GroupGetMemberInfoListResult result, string user_data)=>{
 // Process the async logic
});

Pulling by page (nextSeq)

In many cases, only the first page of the group member list, not the information of all the group members, needs to be displayed on the user UI. More group members need to be pulled only when the user clicks Next Page or pulls up the list page. In this case, you can use paged pull.
Directions for pulling by page:
1. When you call GroupGetMemberInfoList for the first time, set nextSeq to 0 (indicating to pull the group member list from the beginning). Up to 50 group member objects can be pulled at a time.
2. After the group member list is pulled successfully for the first time, the GroupGetMemberInfoListResult callback of GroupGetMemberInfoList will contain group_get_memeber_info_list_result_next_seq (which is the field for the next pull):
If group_get_memeber_info_list_result_next_seq is 0, all the group members have been pulled.
If group_get_memeber_info_list_result_next_seq is greater than 0, there are more group members that can be pulled. This doesn't mean that the next page of the member list will be pulled immediately. In common communications software, a paged pull is often triggered by a swipe operation.
3. When the user continues to pull up the group member list, if there are more members that can be pulled, you can continue to call the GroupGetMemberInfoList API and pass in the nextSeq parameter (the value is from the GroupGetMemberInfoListResult object returned by the last pull) for the next pull.
4. Repeat [step 3] until nextSeq is 0.
Sample code:
// Specify to pull the profile of the group owner through the `filter` parameter
GroupGetMemberInfoListParam param = new GroupGetMemberInfoListParam
{
  group_get_members_info_list_param_group_id = "group_id",
  group_get_members_info_list_param_option = new GroupMemberGetInfoOption
  {
    group_member_get_info_option_role_flag = TIMGroupMemberRoleFlag.kTIMGroupMemberRoleFlag_Owner
  },
  group_get_members_info_list_param_next_seq = 0
};
TIMResult res = TencentIMSDK.GroupGetMemberInfoList(param, (int code, string desc, GroupGetMemberInfoListResult result, string user_data)=>{
 // Process the async logic
});


Muting

Muting a specified group member

The group owner or admin can call GroupModifyMemberInfo (Details) to mute a specified group member and set the muting period in seconds. The muting information is stored in the group_member_info_shutup_time attribute of the group member.
After a group member is muted, all the group members (including the muted member) will receive the GroupTipsEventCallback callback (Details).

Muting the entire group

The group owner or admin can also call the GroupModifyGroupInfo API (Details) to mute the entire group by setting the group_modify_info_param_is_shutup_all attribute to true. The entire group can be muted for an unlimited period of time and needs to be unmuted by changing group_modify_info_param_is_shutup_all to false.
Note:
Only the group owner can mute the admin.
Sample code:
// Mute the group member `userB` for ten minutes
GroupModifyMemberInfoParam param = new GroupModifyMemberInfoParam
{
  group_modify_member_info_group_id = "group_id",
  group_modify_member_info_identifier = "userB",
  group_modify_member_info_modify_flag = TIMGroupMemberModifyInfoFlag.kTIMGroupMemberModifyFlag_ShutupTime,
  group_modify_member_info_shutup_time = 600
};
TIMResult res = TencentIMSDK.GroupModifyMemberInfo(param, (int code, string desc, string user_data)=>{
 // Process the async logic
});

// Mute all
GroupModifyInfoParam param = new GroupModifyInfoParam
{
  group_modify_info_param_group_id = "group_id",
  group_modify_info_param_modify_flag = TIMGroupModifyInfoFlag.kTIMGroupModifyInfoFlag_ShutupAll,
  group_modify_info_param_is_shutup_all = true
};
TIMResult res = TencentIMSDK.GroupModifyGroupInfo(param, (int code, string desc, string user_data)=>{
 // Process the async logic
});


Removing a Group Member

The group owner or admin calls the GroupDeleteMember API (Details) to remove a specified ordinary group member from the group.
After the ordinary group member is removed, all the members (including the removed member) will receive the GroupTipsEventCallback callback (Details).
As an audio-video group (AVChatRoom) can be joined freely, there is no API for removing a group member from an audio-video group (AVChatRoom). You can use GroupModifyMemberInfo (Details) to mute a specified member to implement similar controls.
Note:
Only the group owner can remove the admin from the group.
Sample code:
GroupDeleteMemberParam param = new GroupDeleteMemberParam
{
  group_delete_member_param_group_id = "group_id",
  group_delete_member_param_identifier_array = new List<string>
  {
    "user_id"
  }
};
TIMResult res = TencentIMSDK.GroupDeleteMember(param, (int code, string desc, List<GroupDeleteMemberResult> result, string user_data)=>{
 // Process the async logic
});

Setting an Admin

The group owner can call GroupModifyMemberInfo (Details) to set a group member in a public group (Public) or meeting group (Meeting) as the admin.
An ordinary member set as the admin has the admin permission to perform the following operations:
Modify the basic group profile
Remove an ordinary member from the group
Mute an ordinary member (prevent the member from speaking during a specified period of time)
Approve a request to join the group
For more information, see Group System.
After an ordinary member is set/unset as the admin, all the members (including the ordinary member) will receive the GroupTipsEventCallback callback (Details).
Sample code:
GroupModifyMemberInfoParam param = new GroupModifyMemberInfoParam
{
  group_modify_member_info_group_id = "group_id",
  group_modify_member_info_identifier = "user_id",
  group_modify_member_info_modify_flag = TIMGroupMemberModifyInfoFlag.kTIMGroupMemberModifyFlag_MemberRole,
  group_modify_member_info_member_role = TIMGroupMemberRole.kTIMMemberRole_Admin
};
TIMResult res = TencentIMSDK.GroupModifyMemberInfo(param, (int code, string desc, string user_data)=>{
 // Process the async logic
});


Transferring the Group Ownership

The group owner can call GroupModifyMemberInfo (Details) to transfer the group ownership to a group member.
Sample code:
GroupModifyMemberInfoParam param = new GroupModifyMemberInfoParam
{
  group_modify_member_info_group_id = "group_id",
  group_modify_member_info_identifier = "user_id",
  group_modify_member_info_modify_flag = TIMGroupMemberModifyInfoFlag.kTIMGroupMemberModifyFlag_MemberRole,
  group_modify_member_info_member_role = TIMGroupMemberRole.kTIMMemberRole_Owner
};
TIMResult res = TencentIMSDK.GroupModifyMemberInfo(param, (int code, string desc, string user_data)=>{
 // Process the async logic
});

Getting the Number of Online Group Members

Call GroupGetOnlineMemberCount (Details) to get the number of online group members.
Note:
1. Currently, only the number of online members in an audio-video group (AVChatRoom) can be obtained.
2. This API can be called once every 60 seconds in the SDK.
Sample code:
TIMResult res = TencentIMSDK.GroupGetOnlineMemberCount("group_id", (int code, string desc, GroupGetOnlineMemberCountResult result, string user_data)=>{
 // Process the async logic
});