requestToJoinPublicGroup method Null safety

Future<void> requestToJoinPublicGroup(
  1. String groupId,
  2. {String? reason}
)

Requests to join a group.

This method works only for public groups requiring authentication, i.e., groups with the style of {@link ChatGroupStyle#PublicJoinNeedApproval}.

Param groupId The group ID.

Param reason The reason for requesting to join the group.

Throws A description of the exception. See {@link ChatError}.

Implementation

Future<void> requestToJoinPublicGroup(
  String groupId, {
  String? reason,
}) async {
  Map req = {'groupId': groupId};
  req.setValueWithOutNull('reason', reason);
  Map result = await _channel.invokeMethod(
      ChatMethodKeys.requestToJoinPublicGroup, req);
  try {
    ChatError.hasErrorFromResult(result);
  } on ChatError catch (e) {
    throw e;
  }
}