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Project Description

aiohttp_jrpc

jsonrpc protocol implementation for aiohttp.web.

Example server

import asyncio
from aiohttp import web
from aiohttp_jrpc import Service, JError, jrpc_errorhandler_middleware

SCH = {
    "type": "object",
    "properties": {
        "data": {"type": "string"},
    },
}

@asyncio.coroutine
def custom_errorhandler_middleware(app, handler):
    @asyncio.coroutine
    def middleware(request):
        try:
            return (yield from handler(request))
        except Exception:
            """ Custom errors: -32000 to -32099 """
            return JError().custom(-32000, "Example error")
    return middleware

class MyJRPC(Service):
    @Service.valid(SCH)
    def hello(self, ctx, data):
        if data["data"] == "hello":
            return {"status": "hi"}
        return {"status": data}

    def error(self, ctx, data):
        raise Exception("Error which will catch middleware")

    def no_valid(self, ctx, data):
        """ Method without validation incommig data """
        return {"status": "ok"}

@asyncio.coroutine
def init(loop):
    app = web.Application(loop=loop, middlewares=[jrpc_errorhandler_middleware])
    #app = web.Application(loop=loop, middlewares=[custom_errorhandler_middleware])
    app.router.add_route('POST', "/api", MyJRPC)

    srv = yield from loop.create_server(app.make_handler(),
                                        "127.0.0.1", 8080)
    print("Server started at http://127.0.0.1:8080")
    return srv

loop = asyncio.get_event_loop()
loop.run_until_complete(init(loop))
try:
    loop.run_forever()
except KeyboardInterrupt:
    pass

Example client

import asyncio
import aiohttp
from aiohttp_jrpc import Client,InvalidResponse

Remote = Client('http://localhost:8080/api')

@asyncio.coroutine
def rpc_call():
    try:
        rsp = yield from Remote.request('hello', {'data': 'hello'})
        return rsp
    except InvalidResponse as err:
        return err
    except Exception as err:
        return err
    return False

loop = asyncio.get_event_loop()
content = loop.run_until_complete(rpc_call())
print(content.result)
loop.close()

License

aiohttp_jrpc BSD license.

CHANGES

0.1.0 (2016-02-20)

  • Added client and tests
  • Changed BSD v3 to BSD v2 license

0.0.3 (2015-10-27)

  • Fix messages of protocol errors
  • Fix tests and add tests for custom errors
  • Fix example bugs
  • Added custom middleware to example for handle errors

0.0.2 (2015-10-22)

  • Added middleware to catch exceptions
  • Testing internal error

0.0.1 (2015-10-18)

  • Init release

Credits

aiohttp_jrpc is written by Veniamin Gvozdikov.

Contributors

Please add yourself here alphabetically when you submit your first pull request.

Release History

Release History

0.1.0

This version

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0.0.3

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0.0.2

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0.0.1

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
aiohttp_jrpc-0.1.0-py3-none-any.whl (8.0 kB) Copy SHA256 Checksum SHA256 py3 Wheel Feb 24, 2016
aiohttp_jrpc-0.1.0.tar.gz (5.2 kB) Copy SHA256 Checksum SHA256 Source Feb 24, 2016

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