Minimal python RPC implementation in a single file based on the JSON-RPC 2.0 specs from
Minimal python RPC implementation in a single file based on the JSON-RPC 2.0 specs.
jsonrpyc.RPC instances basically wrap an input stream and an output stream in order to communicate with other services.
A service is not even forced to be written in Python as long as it strictly implements the JSON-RPC 2.0 specs.
A suitable implementation for NodeJs is node-json-rpc. A
jsonrpyc.RPC instance may wrap a target object.
Incomming requests will be routed to methods of this object whose result might be sent back as a response. Example implementation:
import jsonrpyc class MyTarget(object): def greet(self, name): return "Hi, %s!" % name jsonrpyc.RPC(MyTarget())
import jsonrpyc from subprocess import Popen, PIPE p = Popen(["python", "server.py"], stdin=PIPE, stdout=PIPE) rpc = jsonrpyc.RPC(stdout=p.stdin, stdin=p.stdout) # # sync usage # print(rpc("greet", args=("John",), block=0.1)) # => "Hi, John!" # # async usage # def cb(err, res=None): if err: raise err print("callback got: " + res) rpc("greet", args=("John",), callback=cb) # cb is called asynchronously which prints # => "callback got: Hi, John!" # # shutdown # p.stdin.close() p.stdout.close() p.terminate() p.wait()
pip install jsonrpyc
or by simply copying the file into your project.
If you like to contribute to jsonrpyc, I'm happy to receive pull requests. Just make sure to add new test cases and run them via:
> python -m unittest tests
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.