добавил backend

SusMarket/settings.py

@@ -38,6 +38,7 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'SusMarketBackend.apps.SusmarketbackendConfig',
     'rest_framework',
     'corsheaders'
 ]

SusMarketBackend/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

SusMarketBackend/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class SusmarketbackendConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'SusMarketBackend'

SusMarketBackend/models.py

@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.

SusMarketBackend/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

SusMarketBackend/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.