src/cpl_core/dependency_injection/service_collection.py

@@ -59,9 +59,13 @@ class ServiceCollection(ServiceCollectionABC):
             self._add_descriptor(impl, ServiceLifetimeEnum.singleton)
 
     def add_scoped(self, service_type: Type, service: Callable = None):
-        raise Exception('Not implemented')
+        if service is not None:
+            self._add_descriptor(service, ServiceLifetimeEnum.scoped)
+        else:
+            self._add_descriptor(service_type, ServiceLifetimeEnum.scoped)
+        
 
-    def add_transient(self, service_type: Union[type], service: Union[type] = None):
+    def add_transient(self, service_type: type, service: type = None):
         if service is not None:
             self._add_descriptor(service, ServiceLifetimeEnum.transient)
         else:

src/cpl_core/dependency_injection/service_provider.py

@@ -31,7 +31,7 @@ class ServiceProvider(ServiceProviderABC):
         self._configuration: ConfigurationABC = config
         self._database_context = db_context
 
-    def _find_service(self, service_type: type) -> [ServiceDescriptor]:
+    def _find_service(self, service_type: type) -> ServiceDescriptor:
         for descriptor in self._service_descriptors:
             if descriptor.service_type == service_type or issubclass(descriptor.service_type, service_type):
                 return descriptor
@@ -85,7 +85,7 @@ class ServiceProvider(ServiceProviderABC):
 
         return service_type(*params)
 
-    def get_service(self, service_type: type) -> Optional[Callable[object]]:
+    def get_service(self, service_type: type) -> Optional[Callable]:
         result = self._find_service(service_type)
 
         if result is None:

src/cpl_core/dependency_injection/service_provider_abc.py

@@ -26,7 +26,7 @@ class ServiceProviderABC(ABC):
         pass
 
     @abstractmethod
-    def get_service(self, instance_type: Type) -> Optional[Callable[object]]:
+    def get_service(self, instance_type: Type) -> Optional[Callable]:
         r"""Returns instance of given type
 
         Parameter