basic-socket-rpc 0.4.0

Basic binary socket based rpc for Python

basic_rpc

It's in the name, basic RPC implementation with just enough functionality to solve my own problem.

Currently implemented a threaded server and a blocking client though there's no reason an async server/client couldn't be added.

See greet_server.py and greet_client.py for example usage.

Constraints:

1. Supports up to 16k registered commands (due to low level command id represented as a 16 bit integer)
2. Runs on Python 3.6+.

Pros:

1. No dependencies
2. Support for managing amount of concurrent users of the RPC service. (I need exclusive access).
3. Client/Server decoupled from user code.
4. Some basic support for exceptions.

Cons:

1. No encryption/authentication
2. user code responsible for serializing/deserializing messages. The RPC protocol is not aware of the type of arguments/responses being sent. I.e. the message payload is tightly coupled with user code. The tediousness of this is mitigated somewhat by using composable serializer/deserializer functions such as make_serializer. See conftest.py for an example of this. The serialization helper functions reside in rpc_serialization_functions.
3. No autogeneration logic to generate RPC APIs.
4. parsing of large messages slow due to inefficient copying