update slots

http-api/app/routes/enrollments/slots.py

@@ -0,0 +1,38 @@
+from aws_lambda_powertools.event_handler.api_gateway import Router
+from layercake.dynamodb import (
+    ComposeKey,
+    DynamoDBPersistenceLayer,
+    PartitionKey,
+)
+
+from boto3clients import dynamodb_client
+from config import (
+    ENROLLMENT_TABLE,
+    USER_TABLE,
+)
+from middlewares import Tenant, TenantMiddleware
+
+router = Router()
+
+enrollment_layer = DynamoDBPersistenceLayer(ENROLLMENT_TABLE, dynamodb_client)
+user_layer = DynamoDBPersistenceLayer(USER_TABLE, dynamodb_client)
+
+
+@router.get(
+    '/slots',
+    compress=True,
+    tags=['Enrollment'],
+    middlewares=[
+        TenantMiddleware(user_layer.collection),
+    ],
+)
+def get_vacancies():
+    tenant: Tenant = router.context['tenant']
+
+    return enrollment_layer.collection.query(
+        PartitionKey(
+            # Post-migration: uncomment the following line
+            # ComposeKey(str(tenant.id), prefix='slots#orgs'),
+            ComposeKey(str(tenant.id), prefix='vacancies'),
+        )
+    )