title: Django OAuth Toolkit giving me "Authentication credentials were not provided" error
body: <p>I've been trying for a while to get django Oauth toolkit to work but no matter what I get a 401 error and when I check the details it's the error in the title. Even though I'm obviously passing credentials </p>
  
  <p>views.py:</p>
  
  <pre><code>class PostCarFax(viewsets.ModelViewSet):
  
      #authentication_classes = [authentication.TokenAuthentication, authentication.SessionAuthentication, authentication.BaseAuthentication]
      permission_classes = [permissions.IsAuthenticated, TokenHasReadWriteScope]
      queryset = CarFax.objects.all()
      serializer_class = CarFaxSerializer
  </code></pre>
  
  <p>serializers.py:</p>
  
  <pre><code>class CarFaxSerializer(serializers.ModelSerializer):
  
      class Meta:
          model = CarFax
          fields = ('vin', 'structural_damage', 'total_loss',
                    'accident', 'airbags', 'odometer', 'recalls',
                    'last_updated', 'origin_country')
  
      def create(self, validated_data):
          return CarFax.objects.create(**validated_data)
  </code></pre>
  
  <p>settings.py </p>
  
  <pre><code>import os
  import django_heroku
  from django.conf import settings
  settings.configure()
  
  # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
  BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
  
  
  # Quick-start development settings - unsuitable for production
  # See https://docs.djangoproject.com/en/1.11/howto/deployment/checklist/
  
  # SECURITY WARNING: keep the secret key used in production secret!
  SECRET_KEY = 'ts_0a3(d9$$g4h&amp;_w#k$op7a)lg3@vrk!^fs!m-zv=))rw$=xi'
  
  # SECURITY WARNING: don't run with debug turned on in production!
  DEBUG = True
  
  ALLOWED_HOSTS = []
  
  '''import os
  os.environ.setdefault("DJANGO_SETTINGS_MODULE", __file__)
  import django
  django.setup()'''
  
  
  
  
  # Application definition
  
  INSTALLED_APPS = [
      'django.contrib.admin',
      'django.contrib.auth',
      'django.contrib.contenttypes',
      'django.contrib.sessions',
      'django.contrib.messages',
      'django.contrib.staticfiles',
      'api',
      'oauth2_provider',
      'rest_framework',
      'rest_framework.authtoken',
  ]
  
  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',
      'oauth2_provider.middleware.OAuth2TokenMiddleware',
  ]
  
  ROOT_URLCONF = 'django_api.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',
              ],
          },
      },
  ]
  
  OAUTH2_PROVIDER = {
      # this is the list of available scopes
      'SCOPES': {'read': 'Read scope', 'write': 'Write scope', 'groups': 'Access to your groups'}
  }
  
  REST_FRAMEWORK = {
      'DEFAULT_AUTHENTICATION_CLASSES': (
          'rest_framework.authentication.TokenAuthentication',
          'rest_framework.authentication.SessionAuthentication',
          'rest_framework.authentication.BasicAuthentication',
      ),
      'DEFAULT_PERMISSION_CLASSES': [
          'rest_framework.permissions.IsAdminUser',
      ],
  }
  
  AUTHENTICATION_BACKENDS = (
      'oauth2_provider.backends.OAuth2Backend',
      # Uncomment following if you want to access the admin
      #'django.contrib.auth.backends.ModelBackend'
  )
  </code></pre>
  
  <p>calls.py:</p>
  
  <pre><code>def api_call(test):
  
      headers = {
          "Content-Type": "application/json",
          'Authorization': 'Bearer *********************',
      }
  
  
      data = {
          "vin": test[0],
          "structural_damage": test[2],
          "total_loss": test[1],
          "accident": test[5],
          "airbags": 'TESTTTTT',
          "odometer": test[4],
          "recalls": test[6]
      }
  
      data = json.dumps(data)
      response = requests.post('http://127.0.0.1:8000/api/v1/post_carfax/', headers=headers, data=data)
      # print(json.dumps(response.json))
      return response.text
  </code></pre>
  
  <p>I've tried playing around with the settings a lot, I am not sure what I should do. The credentials are being passes right there in the headers, I am not sure why it's saying they don't exist</p>
  
  <p><strong>Fixed it for anyone in the future</strong></p>
  
  <p>I just need to use <code>path()</code> like the tutorial used instead of <code>url()</code>. I didn't use it because on IntelliJ it was underlined and gave me an <code>unresolved</code> error</p>