Resolve "Use cookies instead of local storage for auth in Web UI"

api/funkwhale_api/users/auth_serializers.py

@@ -0,0 +1,16 @@
+from django.contrib import auth
+
+from rest_framework import serializers
+
+
+class LoginSerializer(serializers.Serializer):
+    username = serializers.CharField()
+    password = serializers.CharField()
+
+    def validate(self, validated_data):
+        user = auth.authenticate(request=None, **validated_data)
+        if user is None:
+            raise serializers.ValidationError("Invalid username or password")
+
+        validated_data["user"] = user
+        return validated_data