Add websockets for realtime bidding to the backend (#75)

backend/Pipfile

@@ -8,23 +8,26 @@ django = ">=4.2.6"
 djangorestframework = ">=3.14.0"
 django-environ = ">=0.11.2"
 psycopg2-binary = ">=2.9.9"
-boto3 = ">=1.29.6"
+boto3 = ">=1.34.47"
 django-storages = ">=1.14.2"
 djangorestframework-simplejwt = ">=5.3.1"
-cryptography = ">=42.0.2"
+cryptography = ">=42.0.3"
 requests = ">=2.31.0"
-pyjwt = ">=2.8.0"
+PyJWT = ">=2.8.0"
 django-cors-headers = ">=4.3.1"
 zappa = ">=0.58.0"
-pandas = ">=2.2.1"
+pandas = ">=2.0.3"
 gunicorn = "*"
 drf-jwt = ">=1.19.2"
 django-cognito-jwt = ">=0.0.4"
+channels = ">=4.1.0"
+daphne = ">=4.1.0"
+asgiref = ">=3.8.1"
 
 [dev-packages]
 flake8 = ">=6.1.0"
 isort = ">=5.12.0"
-black = ">=23.10.0"
+black = ">=23.11.0"
 
 [requires]
 python_version = "3.10"

backend/auction/migrations/0003_alter_auctionverifieduser_cognito_user_id.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.2.7 on 2024-04-08 06:03
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("auction", "0002_auction_end_time_auction_start_time_auctionday_and_more"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="auctionverifieduser",
+            name="cognito_user_id",
+            field=models.CharField(max_length=2500),
+        ),
+    ]

backend/auction/models.py

@@ -56,7 +56,7 @@ def save(self, *args, **kwargs):
 
 
 class AuctionVerifiedUser(MainModel):
-    cognito_user_id = models.CharField(max_length=255, null=False, blank=False)
+    cognito_user_id = models.CharField(max_length=2500, null=False, blank=False)
     auction = models.ForeignKey(Auction, on_delete=models.CASCADE)
     is_verified = models.BooleanField(default=False)
 

backend/bid/apps.py

@@ -4,3 +4,6 @@
 class BidConfig(AppConfig):
     default_auto_field = "django.db.models.BigAutoField"
     name = "bid"
+
+    def ready(self):
+        import bid.signals