akka.typed.patterns.Receptionist
A service key is an object that implements this trait for a given protocol T, meaning that it signifies that the type T is the entry point into the protocol spoken by that service (think of it as the set of first messages that a client could send).
A service key is an object that implements this trait for a given protocol T, meaning that it signifies that the type T is the entry point into the protocol spoken by that service (think of it as the set of first messages that a client could send).