error in the application's ajax request in an azure app

I have an app in python-django and on localhost everything works normally. I make ajax requests to Python correctly, however it doesn't work in the Azure application, follow the example code of how I make a request:

 $.ajax({
                url: '/PlanEx/DCC/GerarTabelaAnova',
                data: formData,
                type: 'POST',

Furthermore, my gateway app constantly times out

Solution

I tried deploying a simple Django project, which includes an AJAX POST request, to Azure App Service without any issues.

This is my project structure

ajax_project/
├── ajax_example/
│   ├── migrations/
│   ├── templates/
│   │   └── ajax_example_post.html
│   ├── __init__.py
│   ├── admin.py
│   ├── apps.py
│   ├── models.py
│   ├── tests.py
│   ├── urls.py                 
│   └── views.py
├── ajax_project/
│   ├── __init__.py
│   ├── settings.py
│   ├── urls.py
│   └── wsgi.py
├── db.sqlite3
├── manage.py
└── requirements.txt

ajax_example/views.py:

from django.http import JsonResponse
from django.shortcuts import render
from django.views.decorators.csrf import csrf_exempt 

def ajax_post_page(request):
    return render(request, 'ajax_example_post.html')

@csrf_exempt
def ajax_post_view(request):
    if request.method == 'POST':
        data = request.POST.get('data', '')
        
        response_data = {'received_data': data}
        
        return JsonResponse(response_data)
    else:
        return JsonResponse({'error': 'Only POST requests are allowed'})

ajax_example/urls.py:

from  django.urls  import  path
from .views  import  ajax_post_view, ajax_post_page
urlpatterns  = [
path('ajax-post/', ajax_post_view, name='ajax_post_view'),
path('ajax-post-page/', ajax_post_page, name='ajax_post_page'),
]

ajax_example_post.html:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>AJAX POST Example</title>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
    <button id="send-post">Send POST Request</button>
    <script>
        $(document).ready(function() {
            $('#send-post').click(function() {
                var dataToSend = {'key': 'value'};  // JSON data to send
                var csrftoken = getCookie('csrftoken'); 
                $.ajax({
                    url: '/ajax/ajax-post/',
                    type: 'POST',
                    headers: {
                        'X-CSRFToken': csrftoken 
                    },
                    data: dataToSend,
                    success: function(response) {
                        console.log('Response:', response);
                    },
                    error: function(xhr, status, error) {
                        console.error('Error:', error);
                    }
                });
            });
        });

        function getCookie(name) {
            var cookieValue = null;
            if (document.cookie && document.cookie !== '') {
                var cookies = document.cookie.split(';');
                for (var i = 0; i < cookies.length; i++) {
                    var cookie = cookies[i].trim();
                    if (cookie.substring(0, name.length + 1) === (name + '=')) {
                        cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                        break;
                    }
                }
            }
            return cookieValue;
        }
    </script>
</body>
</html>

ajax_project/urls.py:

from  django.urls  import  path, include
from  ajax_example.views  import  ajax_post_page 
urlpatterns  = [
path('', ajax_post_page), 
path('ajax/', include('ajax_example.urls')),
]

Settings.py:

from pathlib import Path
BASE_DIR = Path(__file__).resolve().parent.parent
SECRET_KEY = 'django-insecure-lmn9zwrj2x99-*y$%l-4dl%*e)dyy=g#d%-_0ee&mq-#@)cl4)'
DEBUG = False
ALLOWED_HOSTS =['127.0.0.1', 'sdjangoajax.azurewebsites.net'
INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]
MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'ajax_project.urls'
TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [BASE_DIR / 'ajax_example' / 'templates'],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'ajax_project.wsgi.application'
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}
AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC
USE_I18N = True
USE_TZ = True
STATIC_URL = 'static/'
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

Create a requirements.txt file before deploying your app to azure app service

To generate a requirements.txt file, you can use the following command in your terminal.

pip freeze > requirements.txt

Local output:

enter image description here

Here's the output after deployment:

enter image description here