Django POST requests from Postman forbidden after HEROKU DEPLOYMENT - django

Question

I uploaded my Django REST Framwork project to Heroku after following the steps carefully.
https://www.youtube.com/watch?v=TFFtDLZnbSs&t=193s&ab_channel=DennisIvy
In my project, I used BEARER tokens with jwt.
My database is PostgreSQL which is provided by Heroku.
It worked perfect while working locally but after deployment, I couldn't send requests through Postman.
Any ideas?
2022-06-04T16:36:50.456061+00:00 heroku[router]: at=info method=POST path="/api/login" host=roy-messenger.herokuapp.com request_id=******-****-****-****-********** fwd="**.***.***.**" dyno=web.1 connect=0ms service=46ms status=403 bytes=3660 protocol=https
2022-06-04T16:36:50.458497+00:00 app[web.1]: Forbidden (Referer checking failed - no Referer.): /api/login
2022-06-04T16:36:50.459018+00:00 app[web.1]: 10.1.10.154 - - [04/Jun/2022:16:36:50 +0000] "POST /api/login HTTP/1.1" 403 3372 "-" "PostmanRuntime/7.29.0"
.
settings.py
"""
Django settings for my project.
Generated by 'django-admin startproject' using Django 4.0.5.
For more information on this file, see
https://docs.djangoproject.com/en/4.0/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/4.0/ref/settings/
"""
from pathlib import Path
from datetime import timedelta
import os
import django_heroku
import dj_database_url
# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/4.0/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = os.environ.get('SECRET_KEY')
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = ['roy-messenger.herokuapp.com', '127.0.0.1']
CSRF_TRUSTED_ORIGINS = ['roy-messenger.herokuapp.com']
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'rest_framework',
'messenger_api',
'corsheaders',
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'whitenoise.middleware.WhiteNoiseMiddleware',
'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',
'corsheaders.middleware.CorsMiddleware',
]
ROOT_URLCONF = 'abra.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [],
'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 = 'abra.wsgi.application'
# Database
# https://docs.djangoproject.com/en/4.0/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': '***************',
'USER': '***************',
'PASSWORD': '******************************************************',
'HOST': 'ec2-52-48-159-67.eu-west-1.compute.amazonaws.com',
'PORT': '5432',
}
}
db_from_env = dj_database_url.config(conn_max_age=600)
DATABASES['default'].update(db_from_env)
# Password validation
# https://docs.djangoproject.com/en/4.0/ref/settings/#auth-password-validators
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',
},
]
REST_FRAMEWORK = {
'DEFAULT_AUTHENTICATION_CLASSES': (
'rest_framework_simplejwt.authentication.JWTAuthentication',
),
# 'DEFAULT_PERMISSION_CLASSES': [
# 'rest_framework.permissions.IsAuthenticated',
# ]
}
SIMPLE_JWT = {
'ACCESS_TOKEN_LIFETIME': timedelta(minutes=60),
'REFRESH_TOKEN_LIFETIME': timedelta(days=1),
'ROTATE_REFRESH_TOKENS': False,
'BLACKLIST_AFTER_ROTATION': False,
'UPDATE_LAST_LOGIN': False,
'ALGORITHM': 'HS256',
'SIGNING_KEY': SECRET_KEY,
'VERIFYING_KEY': None,
'AUDIENCE': None,
'ISSUER': None,
'JWK_URL': None,
'LEEWAY': 0,
'AUTH_HEADER_TYPES': ('Bearer',),
}
# Internationalization
# https://docs.djangoproject.com/en/4.0/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/4.0/howto/static-files/
STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
STATIC_URL = '/static/'
# Default primary key field type
# https://docs.djangoproject.com/en/4.0/ref/settings/#default-auto-field
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
django_heroku.settings(locals())
del DATABASES['default']['OPTIONS']['sslmode']
CORS_ALLOW_ALL_ORIGINS = True
CORS_ALLOW_CREDENTIALS = True
CORS_ALLOW_HEADERS = [
'accept',
'accept-encoding',
'authorization',
'content-type',
'dnt',
'origin',
'user-agent',
'x-csrftoken',
'x-requested-with',
]