Sample Ajax GET/POST Request in Django

<select id="select_dropdown">
  <option value="joshua">joshua</option>
  <option value="peter">peter</option>
  .... ....
</select>

$(document).ready(function () {
  $("#select_dropdown").change(function () {
    var e = document.getElementById("select_dropdown");
    var value = e.options[e.selectedIndex].value;

    $.ajax({
      url: "your-url",
      type: "post", // or "get"
      data: value,
      headers: { "X-CSRFToken": "{{ csrf_token }}" }, // for csrf token
      success: function (data) {
        alert(data.result);
      },
    });
  });
});

from django.http import JsonResponse
def post(request):
    if request.method == "POST": #os request.GET()
        get_value= request.body
        # Do your logic here coz you got data in `get_value`
        data = {}
        data['result'] = 'you made a request'
        return HttpResponse(json.dumps(data), content_type="application/json")