Python msgpack RPC over websocket

• Asynchronous
• Compared to json, msgpack supports binary data.
• Client is able to cancel long running calculation on server.
• Supports bidirectional streaming RPC, where the client sends/receives a sequence of messages to/from server within one RPC, similar to gRPC.
• No need to define .proto files, thanks to python's dynamic features, RPC methods defined on server side can be readily used by client as if it's client's own method.
• Easy integration into any async web frameworks that support websocket.
• lib for javascript client on web browsers.

pip install wsmprpc

python and javascript versions of msgpack

• server_test.py
• client_test.py
• client_test.html (javascript client)