You can send a parameter from controller to dataTable class using with
api.
Route::get('datatable/{id}', function(UsersDataTable $dataTable, $id){
return $dataTable->with('id', $id)
->with([
'key2' => 'value2',
'key3' => 'value3',
])
->render('path.to.view');
});
You can then get the variable as a local property of the class.
class UsersDataTable {
public function query() {
return User::where('id', $this->id);
}
}