add rpc client for resource usage tracker

Author: bisgaard-itis

services/api-server/src/simcore_service_api_server/services_rpc/resource_usage_tracket.py

@@ -0,0 +1,49 @@
+from dataclasses import dataclass
+from functools import partial
+
+from fastapi import FastAPI
+from models_library.resource_tracker_licensed_items_checkouts import (
+    LicensedItemCheckoutID,
+)
+from servicelib.rabbitmq._client_rpc import RabbitMQRPCClient
+from servicelib.rabbitmq.rpc_interfaces.resource_usage_tracker.licensed_items_checkouts import (
+    get_licensed_item_checkout as _get_licensed_item_checkout,
+)
+
+from ..exceptions.service_errors_utils import service_exception_mapper
+from ..models.schemas.model_adapter import LicensedItemCheckoutGet
+
+_exception_mapper = partial(
+    service_exception_mapper, service_name="ResourceUsageTracker"
+)
+
+
+@dataclass
+class ResourceUsageTrackerClient:
+    _client: RabbitMQRPCClient
+
+    @_exception_mapper(rpc_exception_map={})
+    async def get_licensed_item_checkout(
+        self, *, product_name: str, licensed_item_checkout_id: LicensedItemCheckoutID
+    ) -> LicensedItemCheckoutGet:
+        _licensed_item_checkout = await _get_licensed_item_checkout(
+            rabbitmq_rpc_client=self._client,
+            product_name=product_name,
+            licensed_item_checkout_id=licensed_item_checkout_id,
+        )
+        return LicensedItemCheckoutGet(
+            licensed_item_checkout_id=_licensed_item_checkout.licensed_item_checkout_id,
+            licensed_item_id=_licensed_item_checkout.licensed_item_id,
+            wallet_id=_licensed_item_checkout.wallet_id,
+            user_id=_licensed_item_checkout.user_id,
+            product_name=_licensed_item_checkout.product_name,
+            started_at=_licensed_item_checkout.started_at,
+            stopped_at=_licensed_item_checkout.stopped_at,
+            num_of_seats=_licensed_item_checkout.num_of_seats,
+        )
+
+
+def setup(app: FastAPI, rabbitmq_rmp_client: RabbitMQRPCClient):
+    app.state.wb_api_rpc_client = ResourceUsageTrackerClient(
+        _client=rabbitmq_rmp_client
+    )