first commit

app/services/example_service.py

@@ -0,0 +1,24 @@
+import uuid
+from datetime import datetime
+from typing import Dict, List, Optional
+
+
+class ExampleService:
+    def __init__(self):
+        self._store: Dict[str, dict] = {}
+
+    async def list_all(self) -> List[dict]:
+        return list(self._store.values())
+
+    async def get_by_id(self, example_id: str) -> Optional[dict]:
+        return self._store.get(example_id)
+
+    async def create(self, data: dict) -> dict:
+        example_id = str(uuid.uuid4())
+        item = {
+            "id": example_id,
+            "created_at": datetime.utcnow().isoformat(),
+            **data,
+        }
+        self._store[example_id] = item
+        return item