feat(core): configure Django/Channels/ASGI settings and URL routing

core/__init__.py

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+# core/__init__.py

core/asgi.py

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+import os
+import django
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'core.settings')
+django.setup()
+
+from channels.routing import ProtocolTypeRouter, URLRouter
+from channels.auth import AuthMiddlewareStack
+from chat.routing import websocket_urlpatterns
+
+application = ProtocolTypeRouter({
+    'http': get_asgi_application(),
+    'websocket': AuthMiddlewareStack(
+        URLRouter(websocket_urlpatterns)
+    ),
+})

core/settings.py

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+import os
+from pathlib import Path
+from decouple import config
+
+BASE_DIR = Path(__file__).resolve().parent.parent
+
+SECRET_KEY = config('SECRET_KEY', default='poc-secret-key')
+DEBUG = config('DEBUG', default=True, cast=bool)
+ALLOWED_HOSTS = ['*']
+
+INSTALLED_APPS = [
+    'daphne',
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+    'channels',
+    'rest_framework',
+    'chat',
+    'channels_postgres',
+]
+
+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 = 'core.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',
+            ],
+        },
+    },
+]
+
+ASGI_APPLICATION = 'core.asgi.application'
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.postgresql',
+        'NAME': config('DB_NAME', default='discord_db'),
+        'USER': config('DB_USER', default='discord_user'),
+        'PASSWORD': config('DB_PASSWORD', default='discord_pass'),
+        'HOST': config('DB_HOST', default='localhost'),
+        'PORT': config('DB_PORT', default='5432'),
+    },
+    'channels_postgres': {
+        'ENGINE': 'django.db.backends.postgresql',
+        'NAME': config('DB_NAME', default='discord_db'),
+        'USER': config('DB_USER', default='discord_user'),
+        'PASSWORD': config('DB_PASSWORD', default='discord_pass'),
+        'HOST': config('DB_HOST', default='localhost'),
+        'PORT': config('DB_PORT', default='5432'),
+    }
+}
+
+CHANNEL_LAYERS = {
+    'default': {
+        'BACKEND': 'channels_postgres.core.PostgresChannelLayer',
+        'CONFIG': {
+            'ENGINE': 'django.db.backends.postgresql',
+            'NAME': config('DB_NAME', default='discord_db'),
+            'USER': config('DB_USER', default='discord_user'),
+            'PASSWORD': config('DB_PASSWORD', default='discord_pass'),
+            'HOST': config('DB_HOST', default='localhost'),
+            'PORT': config('DB_PORT', default='5432'),
+            'TIME_ZONE': 'UTC',
+            'CONN_MAX_AGE': 0,
+            'OPTIONS': {},
+            'AUTOCOMMIT': True,
+        },
+    },
+}
+
+LANGUAGE_CODE = 'en-us'
+TIME_ZONE = 'UTC'
+USE_I18N = True
+USE_TZ = True
+
+STATIC_URL = '/static/'
+STATIC_ROOT = BASE_DIR / 'static'
+
+MEDIA_URL = '/media/'
+MEDIA_ROOT = BASE_DIR / 'media'
+
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
+
+LOGIN_URL = '/login/'
+LOGIN_REDIRECT_URL = '/'
+LOGOUT_REDIRECT_URL = '/login/'
+
+# PoC: allow large file uploads
+DATA_UPLOAD_MAX_MEMORY_SIZE = 52428800  # 50MB
+FILE_UPLOAD_MAX_MEMORY_SIZE = 52428800

core/urls.py

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+from django.contrib import admin
+from django.urls import path, include
+from django.conf import settings
+from django.conf.urls.static import static
+
+urlpatterns = [
+    path('admin/', admin.site.urls),
+    path('', include('chat.urls')),
+] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT) \
+  + static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
+
+handler404 = 'chat.views.handler404'
+handler500 = 'chat.views.handler500'