So the backend (not under my control) requires a query string like this:
http://example.com/?foo=5&foo=2&foo=11
But axios
axios
Adding more details to @nhydock accepted answer. When you do
var request = {foo: [5, 2, 11] }
axios.get('http://example.com/', request);
For django application you can receive these as
self.request.query_params.getlist('foo')
also.