Add car serialization and deserialization functionality

.gitignore

@@ -7,3 +7,46 @@ venv/
 .pytest_cache/
 **__pycache__/
 **db.sqlite3
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Jupyter Notebook checkpoints
+.ipynb_checkpoints
+
+# Test and coverage artifacts
+.coverage
+htmlcov/
+.tox/
+.noseids
+
+# VS Code settings
+*.code-workspace
+
+# Local dev env files
+.env.*
+.envrc
+*.local
+
+# Mac system files
+.DS_Store
+
+# Logs
+*.log
+
+# Sphinx documentation build
+docs/_build/
+
+# Migrations
+**/migrations/
+
+# dist and build
+build/
+dist/
+*.egg-info/
+
+.venv/

car/serializers.py

@@ -1,5 +1,17 @@
 from rest_framework import serializers
 
+from car.models import Car
+
 
 class CarSerializer(serializers.Serializer):
-    pass
+    id = serializers.IntegerField(read_only=True)
+    manufacturer = serializers.CharField(max_length=64)
+    model = serializers.CharField(max_length=64)
+    horse_powers = serializers.IntegerField(min_value=1, max_value=1914)
+    is_broken = serializers.BooleanField()
+    problem_description = serializers.CharField(
+        allow_null=True, required=False
+    )
+
+    def create(self, validated_data):
+        return Car.objects.create(**validated_data)

main.py

@@ -1,9 +1,24 @@
+import io
+from rest_framework.renderers import JSONRenderer
+from rest_framework.parsers import JSONParser
+
+import json
+
+
 from car.models import Car
+from car.serializers import CarSerializer
 
 
 def serialize_car_object(car: Car) -> bytes:
-    pass
+    serializer = CarSerializer(instance=car)
+    json = JSONRenderer().render(serializer.data)
+    return json
 
 
 def deserialize_car_object(json: bytes) -> Car:
-    pass
+    stream = io.BytesIO(json)
+    data = JSONParser().parse(stream)
+
+    serializer = CarSerializer(data=data)
+    serializer.is_valid(raise_exception=True)
+    return serializer.save()