public virtual void SwapAliasIndex(string aliasName, string newIndexName) { var existingIndexesOnAlias = Client.GetIndicesPointingToAlias(aliasName); var aliasRequest = new BulkAliasRequest { Actions = new List <IAliasAction>() }; foreach (var existingIndexOnAlias in existingIndexesOnAlias) { aliasRequest.Actions.Add(new AliasRemoveAction { Remove = new AliasRemoveOperation { Alias = aliasName, Index = existingIndexOnAlias } }); } aliasRequest.Actions.Add(new AliasAddAction { Add = new AliasAddOperation { Alias = aliasName, Index = newIndexName } }); Client.Alias(aliasRequest); }