Starting & cleaning upΒΆ

In case of most backends, you should only instantiate a backend once per application, as a backend typically allocates resources such as thread or connection pools.

When ending the application, make sure to call backend.close(), which will free up resources used by the backend (if any). The close process might be asynchronous, that is it can complete after the close() method returns.

Note that only resources allocated by the backends are freed. For example, if you use the AkkaHttpBackend() the close() method will terminate the underlying actor system. However, if you have provided an existing actor system upon backend creation (AkkaHttpBackend.usingActorSystem), the close() method will be a no-op.